welan gum manufacturer

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Microbial polysaccharides welan gum is extracellular polysaccharide which NX-3 (Alcaligenes sp.secretes, welan gum is made up of glucose, mannose,rhamnose and glucuronic acid. Based on the molecular formula

welan gum manufacturer

due to its hydrogen bond lies in the polymer chain between two indican rings, which leads to solution viscosity increases obviously and its better adhesion on the surface material, at the same time ,which makes whole solution produce a large range of bridge effect, thereby increasing the yield value, keep the solution system in a quiet place or medium shear good adhesiveness, so that it can produce excellent thickening property, rheological property and suspension stability.


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we produce welan gum

1.Welan gum grade
1). oil drilling grade(petroleum grade) xanthan gum.
2). special grade

2. property:
1)high viscosity under low rotation
2) high viscosity under low concentration
3 fine moisture retention
4)peculiar stability under high salinity
5)high temperature resistance

we produce welan gum

Appearance:	white to cream color powder
Odor	mild
pH:	7.0-9.0
Bulk density:	26.25 lbs./ ft3 (500-700kg/m3)
Specific Gravity:	1.45
Particle Size:	90% pass 80 mesh
Viscosity	0.66% in Dl water by Fann 35 at 70ºF	0.66% in Dl water by Fann 35 with 1.0 spring at 185ºF
300rpm	39-49	37-47
200rpm	33-43	32-42
100rpm	29-37	28-35
6rpm	> 17	> 17
3rpm	> 16	> 16

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bio surfactant

bio surfactant Features:
Water-soluble, small solid adsorption;
Better resistance and residual resistance factor, reduce the interfacial tension, better wet ability and reversal for oil rock surface;
A plurality of biological macromolecules can bridge to completely block the throat at the same time, so that the water flow around;
Resistance to salinity 30000mg / L, temperature stable at 120 ℃;
Lower cost, applicability, especially for the presence of the interlayer and the inner heterogeneity of the EOR in the oilfields;
Non-toxic, safety, environmental;
 

bio surfactant

Product dosages
The dosages of product in oilfields is 0.5 to 1%

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Welan gum

Welan gum can also be widely used in cement and concrete, and enhance the water retention of mud, and it does not need to use dispersants like other additives when used as the water retention agent. Welan gum can increase the plasticity, suspension amount, air content, and ability of anti-subsidence and flow characteristics and anti-dehydration of cement. These characteristics of improvements remain unchanged when the temperature increases. Compared with other additives, Welan gum with the lower concentration can achieve a very good effec.

Welan gum

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development

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Welan gum

Welan Gum  is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures.
Others name: Biozan; Kelco Crete.

Welan Gum
Welan Gum Food Grade
Welan Gum Industrial Grade
Welan Gum Cosmetic Grade
Welan Gum Oil drilling Grade

Welan gum

Item		Specifications
Appearance		Off-white to tan powder
High temperature performance		120 degrees Celsius
Acid resistance		This product and citric acid can be used together,function is not affected
Solubility		Hot or cold water
Viscosity (1% Gum to 1% KCL Brookfield, LVT. 60 rpm, spring 3, 25 Celsius)		Min.1500 mPa.s
Boiling point(Celsius)		137-138
Loss on drying		Max.13.0%
Residue on ignition		5%
PH (of 1% solution)		5.0-9.5
Particle size		95% through 80 mesh

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Welan gum

Welan gum is a biopolysaccharide via Alcaligenes fermentation  using starch or other carbohydrates by the method of biological engineering. It is a tetrasaccharide repeating unit consisting of D-glucose, D-glucuronic acid, L-rhamnose, and L-mannose. From the molecular formula, because of its hydrogen in the polymer chain between the two glycosidic rings, resulting in significant increase in viscosity of the solution system to enable it to better adhesion to the surface of the material, the solution system to produce a large Range of the bridge effect, thereby increasing the yield value, in the standing or moderate shear force to keep the solution system better cohesion, it has excellent thickening, rheology and suspension stability. Welan gum is widely used in drilling fluid and completion fluid, self-compacting concrete admixture, textile printing and dyeing, firefighting agent, ink printing, casting coating, detergent, coating agent, pottery and porcelain in oilfield chemistry with its excellent physical and chemical properties. Microcapsules and non-fluorine-based protein and many other industries.

Welan gum

Welan Gum
Item		Specifications
Appearance		Off-white to tan powder
High temperature performance		120 degrees Celsius
Acid resistance		This product and citric acid can be used together,function is not affected
Solubility		Hot or cold water
Viscosity (1% Gum to 1% KCL Brookfield, LVT. 60 rpm, spring 3, 25 Celsius)		Min.1500 mPa.s
Boiling point(Celsius)		137-138
Loss on drying		Max.13.0%
Residue on ignition		5%
PH (of 1% solution)		5.0-9.5
Particle size		95% through 80 mesh

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Welan gum

Welan gum
1.grade
1). oil drilling grade(petroleum grade) xanthan gum.
2). special grade

2. property:
1)high viscosity under low rotation
2) high viscosity under low concentration
3 fine moisture retention
4)peculiar stability under high salinity
5)high temperature resistance

Welan gum Application:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of
viscosity at elevated temperatures. It is used in various industries where high molecular weight
biopolymers are useful. Welan Gums have various oilfield applications, concrete, dry-mixed mortar,petroleum industry,foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners

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bio surfactant

bio surfactant Metsulfuron-methyl Specifications
1. It is a systemic compound with foliar and soil activity, and it works rapidly after it is takenup by the plant.
2. Its mode of action is by hnhibiting cell dividion in the shoots and roots of the plant, and it is
Biologically active at low use rates.

Metsulfuron-methyl Application:
(1) Metsulfuron-Methyl 60% WP and 60% WDG is a residual sulfonylurea compound used as a selective pre-and postemergennce herbicide for broadleaf weeds and some annual grassed.
(2) Metsulfuron-Methyl is a systemic compound with foliar and soil activity.
(3) Metsulfuron-Methyl works rapidly after it is taken up by the plant.
(4) Metsulfuron-Methyl mode of action is by hnhibiting cell dividion in the shoots and roots of the plant, and it is biologically active at low use rates

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welan gum

we produce welan gum,if you need our products,pls leave us messages.
Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development.

welan gum

Welan gum is a biopolysaccharide via Alcaligenes fermentation  using starch or other carbohydrates by the method of biological engineering. It is a tetrasaccharide repeating unit consisting of D-glucose, D-glucuronic acid, L-rhamnose, and L-mannose. From the molecular formula, because of its hydrogen in the polymer chain between the two glycosidic rings, resulting in significant increase in viscosity of the solution system to enable it to better adhesion to the surface of the material, the solution system to produce a large Range of the bridge effect, thereby increasing the yield value, in the standing or moderate shear force to keep the solution system better cohesion, it has excellent thickening, rheology and suspension stability. Welan gum is widely used in drilling fluid and completion fluid, self-compacting concrete admixture, textile printing and dyeing, firefighting agent, ink printing, casting coating, detergent, coating agent, pottery and porcelain in oilfield chemistry with its excellent physical and chemical properties. Microcapsules and non-fluorine-based protein and many other industries.

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Welan gum

Welan gum
High quality Thickener Welan Gum for Food Grade
1.Welan Gum  CAS no.:96949-22-3
2.Standard: Food grade, Tech grade, Pharmaceutical Grade
3.Usage: Food additives, Pharmacy,
Purifying effect and suspension effect in oil industry,
Packing: 25kg/bag, 25kg/drum or according to the customer's requirement.
High quality Thickener Welan Gum for Food Grade Specifications

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Anti-high temperature biopolymers

Anti-high temperature biopolymers.These resins require some care in molding so as not to exceed their heat, shear, and hydrolytic stability. Materials suppliers have been developing new and enhanced grades with improved processability and end-use properties, which could help the material to advance into a wider range of applications. Additive suppliers have also come out with products to overcome processing and performance limitations.

“We have worked with the majority of the leading suppliers of biopolymers and have trialed the materials extensively,” says Michael McGee, director of technology at Nypro in Clinton, Mass. It’s not as simple as a drop-in substitution for a familiar material like PP. “The rheology, shrink rates, and venting requirements are different from material to material, but the differences are subtle so you have to understand product design, tool design, processing equipment and the parameters of your process. We have been amassing considerable knowledge about biodegradable and biobased materials. We understand more now about their drying, about gate design and location, runner channels, flow rates, venting, and molding.”

Anti-high temperature biopolymers

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Welan Gum is an anionic polysaccharide

Welan Gum  is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures.
Others name: Biozan suppliers in China; Kelco Crete.

Welan Gum exhibits superior temperature stability over 200°F in fresh water and low pH fluids. Fritz Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft3.

Welan Gum is used in various industries where high molecular weight biopolymers are useful. A short list of products containing Welan Gums include various oilfield applications, foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners.

 Biozan suppliers in China

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Welan gum

Because of the shear thinning effect and excellent rheological properties of Welan gum, it mainly is used in all aspects of industry and agriculture as a thickening agent, suspending agent, emulsifier, stabilizer, lubricants, and adhesives . It also has a wide application prospect in food, concrete, oil, ink and other industries.

1. In the food industry, Welan gum can be used in bakery products, dairy products, fruit juice, milk beverages, sugar, icing sugar, jam, meat and all kinds of desserts processing.
2. In the oil industry, Welan gum can be used for deployment of drilling mud in order to maintain the viscosity of water-based drilling fluid and control its rheological properties. Welan gum is also a new type of oil displacement agent used for tertiary oil recovery wells.Deploying aqueous solutions of welan gum with the right concentration injection into the wells, and putting the pressure into the oil reservoir, it can greatly improve the oil recovery rate. In addition, Welan gum can also be used in flow improver of completion, workover, stratum fracture, and heavy oil transportation.
3. Welan gum can also be widely used in cement and concrete, and enhance the water retention of mud, and it does not need to use dispersants like other additives when used as the water retention agent. Welan gum can increase the plasticity, suspension amount, air content, and ability of anti-subsidence and flow characteristics and anti-dehydration of cement. These characteristics of improvements remain unchanged when the temperature increases. Compared with other additives, Welan gum with the lower concentration can achieve a very good effec.

Welan gum

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bio surfactant

Rhamnolipids are bio surfactant naturally occurring glycolipids produced commercially by the Pseudomonas aeruginosa species of bacteria. P. aeruginosa produces both mono-rhamnolipids and di-rhamnolipids. Many strains of P. aeruginosa can produce rhamnolipids both aerobically and in some cases by anaerobic fermentation. Rhamnolipids function as a natural surfactant, emulsifier, fungicide, and antibiotic.

In pure form, rhamnolipids are a white powder when desiccated. Generally rhamnolipids are supplied and used in an aqueous solution. The solution may range from clear to milky white or tan in color, depending on concentration and purification. When used as a surfactant, only low concentrations are necessary.

As a natural “green”, non-carcinogenic product, rhamnolipids are just now beginning to be used to replace petroleum-based chemicals in cosmetics, soaps, shampoos, detergents, pharmaceuticals, agricultural sprays, etc. as those currently used petrochemicals are being phased out or banned.

bio surfactant

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Welan gum price

Welan gum price:
1.Product name: Welan gum
2.CAS NO.：96949-22-3
3.Purity: 99% min
Storage information: Store in Cool and dry .place, keep away from strong light, high temperature
Usage: chemical reseach
Transportation：by air express delivery(DHL,FedEx,EMS ect.) or sea shipping (FOB,CIF,CFR,CNF ect.)
Sample：sample can be supplied if you inquiry
Price: we will give you the best price !

Welan gum price

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Welan gum price

Welan gum price
Welan Gum
QC:Haccp, Kosher, Hala,ISO
Viscosity:Min.1500 mPa.s
Grade: Food, Industrial, Cosmetic, Oil  drilling Grade
Product Description

Welan Gum  is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures.
Others name: Biozan; Kelco Crete.
Welan Gum exhibits superior temperature stability over 200°F in fresh water and low pH fluids. Fritz Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft3.
Welan Gum is used in various industries where high molecular weight biopolymers are useful. A short list of products containing Welan Gums include various oilfield applications, foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners.

Welan gum price

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Rhamnolipid biosurfactant

Rhamnolipid bio surfactant is a liquid contact biofungicide used in agricultural, horticultural and turf
Settings to prevent and control plant pathogens such as downy mildews, Pythium and Phytophthora.
Studies have shown that rhamnolipid biosurfactant is not generally toxic, but is corrosive to eyes.
When applied according to label directions by appropriately protected handlers, no adverse effects on
Humans or the environment are expected from the use of this biofungicide.

Description:
Rhamnolipid biosurfactant is a mixture of two structurally related rhamnolipid molecules.
The active ingredient is prepared commercially by controlled aerobic fermentation of a
Strain of the soil-borne bacterium Pseudomonas aeruginosa. Strict quality controls assure that no bacteria are present in the manufactured product. The rhamnolipid molecules are simple glycolipids comprised of a fatty acid tail with either one or two rhamnose rings at the carboxyl end of the fatty acid. Rhamnose is a sugar which the Food and Drug Administration has approved as a food additive. Fatty acids, a major source of energy in the body, are ubiquitous in animals and plants. Exposure to rhamnolipids and other biosurfactants is widespread. Rhamnolipid biosurfactant works by disrupting cell membranes; The targeted fungal pest zoospores are especially vulnerable because they lack the protective cell wall present in the fungal pest's other life stages.

Rhamnolipid biosurfactant

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welan gum test method

welan gum test method:
0.66% by weight solution:mix 3.33grams SM gum into 500mls DI water for 5 minutes in a Waring blender at 4000rpms.Measure pH and viscosity at 21ºC using a Fann Viscometer equipped with a #1 torsion spring.Then condition for 20minutes at 85ºC in atmospheric cement consistometer. Take 85ºC fann readings in a preheated fann cup.

Application:
It is widely used in oil drilling,other industrial use .
Package:
25kgs net weight Composite paper bag, inner PE bag.

welan gum test method

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welan gum manufacturers

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development. We are professional welan gum manufacturers.
1). oil drilling grade(petroleum grade) xanthan gum.
2). special grade
2. property:
1)high viscosity under low rotation
2) high viscosity under low concentration
3 fine moisture retention
4)peculiar stability under high salinity
5)high temperature resistance
Application:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of
viscosity at elevated temperatures. It is used in various industries where high molecular weight
biopolymers are useful. Welan Gums have various oilfield applications, concrete, dry-mixed mortar,petroleum industry,foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners

welan gum manufacturers

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welan gum suppliers

product introduction
Our company are welan gum suppliers.The main component of the efficient anti-segregation agent is a macromolecule microbial polymer. It shows good stability, excellent resistance to segregation, water retention and thicken effect and unique rheological properties. It can effectively prevent the mortar and concrete bleeding and segregation, even more could overcome the affect on strength introduced by traditional anti-segregation agents or thickeners. So it is particularly suitable for high-end building products such as grout, self-leveling mortar and self-compacting concrete, etc. Compared with traditional thickeners and anti-segregation agents, DR-1also resolve the problems of measure and dispersion, stick knives, air bubbles and other issues, while DR2 overcomes many difficulties of traditional anti-segregation agents such as the strength problems and competitive adsorption with other additives.
SZB-660 has the characteristics of Thixotropic, water retention, and SZB-360 has the characteristics of Thickening,Thixotropic, they are mixed used for spray machine mortar
Properties
DR-1 and DR-2 can by used independently,
while SZB-660:SZB:360=10:3 for spray machine mortar

welan gum suppliers

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bio surfactant

At present, rhamnolipid as bio surfactant mostly from Pseudomonas fermentation derived. In order to obtain high yield of rhamnolipid, the appropriate carbon source is the primary consideration, vegetable oil, glycerol, ethanol, glucose, n-alkanes and other organic matter can be used as a carbon source of fermentation.
Consumption of kitchen waste oil for the carbon source fermentation of rhamnolip, not only for the kitchen waste oil safety and health disposal opened up a new way, but also reduces the cost of production of rhamnolip, to achieve the purpose of waste utilization.
Our team can provide superior products and premium services with excellent design and excellent production equipment to meet customers'needs.

bio surfactant

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welan gum manufacturers in china

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development. We are welan gum manufacturers in china.

Welan gum is a long chain naturally occurring polymer with excellent thermally resistance capability which is used to increase yields of water-based drilling mud. Welan gum can be stable up to 3000F (1500C) in water-based drilling, workover and completion fluids systems due to unique features for Lower Shear Rate Viscosity ( LSRV ) of drilling fluids and divalent ion tolerance. 

Welan gum has a slightly higher acid solubility than xanthan gum polymer. Bichain is one of reliable welan gum suppliers and manufacturers for oilfield drilling, workover fluids and oil well cementing. High quality welan gum like Biozan polymer.

welan gum manufacturers in china

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Anti-high temperature biopolymers description

Anti-high temperature biopolymers description
The product has the general properties of biopolymer  such as thickening, suspension, emulsifying, acid-base stability, but also have good high temperature performance, temperature tolerance up to 150 ºC, it can be used deep well drilling fluid, etc. in the high temperature environment.

Packaging & Delivery
Packing :Paper bag, net 20kg/bag
Delivery Lead Time :2 weeks
Minimum Order :200kg
Supply Ability :1000mt-2000mt/year

Anti-high temperature biopolymers

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Bio surfactants are widely used as natural additives

Bio surfactants are widely used as natural additives in the food processing industry.
RL can significantly reduce the interfacial tension and surface tension of the material.
The hydrophobic end is combined with the organic molecule, and the hydrophilic end is combined with the intermittent water of the garbage to make the water form a stable liquid film around the garbage particles, providing a good surface environment for the microorganism. And then under the action of microorganisms. Through high-temperature fermentation of garbage in the pathogen harmless, organic humification and stabilization, and thus deal with a variety of organic solid waste.
Our team can provide superior products and premium services with excellent design and excellent production equipment to meet customers'needs

Bio surfactants

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Rhamnolipid is an anionic bio surfactant

Rhamnolipid is an anionic bio surfactant produced by microorganisms. It is not only soluble in methanol, chloroform and ether, but also exhibits good dissolution characteristics in alkalinhttp://www.china-ebio.come aqueous solution.
It combines good chemical and biological characteristics. With oil and water amphiphilicity, can reduce the water surface tension, can also be used as a wetting agent, emulsifier and foaming agent. While it has excellent surface activity, and non-toxic, biodegradable.
At present it is more widely used in the oil industry, green agriculture and ecological environment, in addition to the food industry, cosmetics, medical also has a greater potential for application.

bio surfactant

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China welan gum manufacturers

Ebio biotechnology is China welan gum manufacturers.Our products include diutan gum, welan gum, anti-high temperature biopolymers and so on.
welan gum Characteristics
1. Has the characteristics of pseudoplastic flow (shear thinning effect),and a good ability of suspensionin the stationary state.
2. It is relatively stable in the range of PH2-12 and has good salt tolerance.
3. It has the thermal reversibility for the stability of temperature, the influence of temperature on the Welan gum is relatively small. Under the condition of 121 °C terilization for 15 minutes, its viscosity will not decrease. The viscosity of 0.4 xanthan gum solution has been zero when the temperature is 135°C , but the vidcosity of welan gum solution was just close to zero under the same conditions when the temperature is up to 163°C. Under the normal conditions, the viscosity of welan gum solution will decrease with the the temperature increasing and with the temperature lowering, it can completely restore.
4. welan gum can form a gel under the conditions of NaOH existence and heating, but the gel strength is very weak.
5. It has better compatibility with other gum.
6. can be dissolved in cold water, it presents regular and stable structure in aqueous solution,and forms the high viscosity solution.

China welan gum manufacturers

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Welan gum Description

Welan gum Description:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures. Welan Gum exhibits superior temperature stability over 200° F in fresh water and low pH fluids. Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft³. Welan Gum is used in various industries where high molecular weight biopolymers are useful.

Application:
WELAN GUM biopolyer is a high efficiency, pseudoplastic viscosifier and suspension agent used in water based drilling, workover and completion fluids. Welan gum is also used in hydraulic fracturing fluids and cementing grouts, foundary coating, pigment suspensions, cement or concrete viscosifier, tire sealant and paint thickeners.

Packing:
WELAN GUM is packed in 20 kg paper sack, 25 or 40 sacks per pallet.
Customized packaging is available.

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Welan Gum is an anionic polysaccharide

Welan Gum  is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures.
Others name: Biozan; Kelco Crete.
Welan Gum exhibits superior temperature stability over 200°F in fresh water and low pH fluids. Fritz Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft3.
Welan Gum is used in various industries where high molecular weight biopolymers are useful. A short list of products containing Welan Gums include various oilfield applications, foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners.

Welan Gum

Storage information: Store in Cool and dry .place, keep away from strong light, high temperature
Usage: chemical reseach
Transportation：by air express delivery(DHL,FedEx,EMS ect.) or sea shipping (FOB,CIF,CFR,CNF ect.)
Sample：sample can be supplied if you inquiry
Price: we will give you the best price !
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Drilling mud additive for Welan gum

Drilling Mud Additive for welan gum polyacrylamide has very good performance in high temperature and salt resistance for oil drilling application.

Advantage
Keep very high viscosity in saline water
Bear with high temperature upto 150 celsius degree

Typical Properties
Appearance: White powder
Hydrolysis degree: 25%
UL Viscosity, CPS: 4.0-7.0
Molecular weight: 20-25MM
Solid content: 90min.

Drilling mud additive for Welan gum

Application & Storage
Recommended solution concentrations: 0.5%
Recommended storage periods: 2 years from receipt of goods in a cool and dry place
Stock solution: 24hours

Viscosity modifying Admixture

Welan gum is a good quality viscosity modifying admixture.The use of viscosity modifying admixtures (VMA) has proved to be very effective in stabilizing the rheological properties and consistency of self-compacting concrete (SCC). SCC is known for its excellent deformability, high resistance to segregation and use, without applying vibration, in congested reinforced concrete structures characterized by difficult casting conditions. Most of the commercial VMAs currently available in the market are costly and increase the price of such a concrete. Identification or production of new low-cost VMA is then essential. This paper presents the performance of four new polysaccharide-based VMAs in enhancing the rheological and consistency properties of cement paste.
The study of the rheological properties and consistency of cement paste to screen the dosage and type of new VMA to be used in SCC is a promising approach. Investigation was carried out on cement pastes with combinations of various dosages of new VMAs and of a superplasticizer (SP) to study the influence on rheology, consistency and washout mass loss. A commercial VMA designated in this paper as “COM” was tested for comparison. The study on new VMAs is encouraging and confirms that pastes with satisfactory rheological and consistency properties comparable with or even better than commercial VMA can be developed. The combined use of proper dosages of VMA and SP is shown to clearly contribute to securing high-performance cement pastes that is highly fluid yet cohesive enough to reduce water dilution and enhance water retention. Attempt has also been made to correlate rheological properties (yield stress) to consistency (slump) of pastes.

Viscosity modifying Admixture

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We are bio surfactant manufacturers

We are bio surfactant manufacturers,if you need this,please send us email.
The increased environmental awareness of consumers has led to a higher demand for the green/eco-friendly products. Prudent customers in mature markets demand green products made from renewable sources that are biodegradable and have less harmful effects on the environment as compared to products from petroleum origin. Surfactants constitute an important group of chemicals. They are used for manufacturing household and commercial cleaners, personal care and food products. Surfactants can be derived from both petrochemical feedstock and renewable resources.

bio surfactant manufacturers

In addition to increasing demand for products made from renewable resources, there are specific types of cosmetic ingredients being viewed critically by consumers. One example are certain types of ethoxylates (PEG-derivatives) for which industry is seeking replacement products. While there are existing surfactants which are partially (e. g. fatty acohol ethoxylates, fatty alcohol ether sulfates) or even fully (e. g. alkyl polyglucosides) derived from renewable resources, none of these fulfill all requirements in terms of cost, performance, renewable content, and environmental compatibility (e. g. biodegradability, ecotoxicity). SyntheZyme’s biosurfactant products close this gap by offering raw material flexibility in combination with novel, unique structures resulting in increased performance value in applications.

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Drilling mud additive for Welan gum

Drilling mud additive for Welan gum
Welan Gum is a biopolymer employed in food industry as thickener. This paper evaluates its performance as mud thickener and filtrate loss additive. Tests revealed that welan gum, even at low concentrations, effectively boosted mud viscosity and yield point. Tests were also conducted on carboxymethyl cellulose (CMC), a commonly used mud thickener. Compared with CMC, welan gum is more effective as mud thickener, but welan gum has no effect on mud filtrate loss. welan gum mud was also tested at elevated temperature. The viscosity of welan gum mud was stable under short-term and long-term heating. Sodium chloride and calcium chloride were added into welan gum mud. Test results showed welan gum mud was resilient to sodium and calcium contamination. welan gum has good potential as mud thickener under high temperature and high salinity conditions.
Drilling mud plays a critical role in the success of oil and gas drilling operations. It cools and lubricates drill bit, controls well pressure, transports and suspends cuttings. Mud must have a relatively high viscosity to effectively suspend cuttings. Therefore, mud thickeners are often added into mud to boost mud viscosity. The most widely used mud thickeners are carboxy methyl cellulose (CMC) and hydroxy ethyl cellulose (HEC).

Drilling mud additive for Welan gum

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Characteristics of Welan Gum

Characteristics of Welan Gum

1. can be dissolved in cold water, it presents regular and stable structure in aqueous solution,and forms the high viscosity solution.

2. has the characteristics of pseudoplastic flow (shear thinning effect),and a good ability of suspension in the stationary state.

3. It is relatively stable in the range of PH2-12 and has good salt tolerance.

4. welan gum can form a gel under the conditions of NaOH existence and heating, but the gel strength is very weak.

5. It has the thermal reversibility for the stability of temperature, the influence of temperature on the Welan gum is relatively small. Under the condition of 121 ℃ terilization for 15 minutes, its viscosity will not decrease. The viscosity of 0.4 xanthan gum solution has been zero when the temperature is 135℃ , but the vidcosity of welan gum solution was just close to zero under the same conditions when the temperature is up to 163℃. Under the normal conditions, the viscosity of welan gum solution will decrease with the the temperature increasing and with the temperature lowering, it can completely restore.

6. It has better compatibility with other gum.

Welan Gum

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welan gum introduction

Welan gum is a thickening agent whose properties make it well suited to use in high temperature industrial applications and oilfield drilling muds.
Source: Biofermentation using a sugar source
Function: Thickening, suspension, thermal stability
Description: Welan gum is a specialty fermentation polysaccharide produced by fermentation of Sphingomonas sp.A key feature of this novel, water-soluble polysaccharide is its excellent stability and viscosity retention at temperatures up to 150°C (300°F).
In addition, this hydrophilic colloid thickens, suspends, and stabilizes water-based systems while imparting rheological control. The excellent functionality of welan gum in high-temperature conditions makes it suitable for industrial applications such as sealants, metalworking compounds and various industrial applications. Welan gum is stable in the presence of calcium ions, even under high pH conditions, and in solutions containing high levels of glycols.
A solution of welan gum in water is highly pseudoplastic (shear thinning). At rest and under low shear conditions it exhibits a very high viscosity. By contrast, under high shear conditions it exhibits a low viscosity. The viscosity changes immediately when the shearing conditions change, for example, when the solution comes to rest after being pumped.

welan gum introduction

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Rhamnolipid bio surfactant is an anionic surfactant

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development.
Rhamnolipid bio surfactant is an anionic surfactant, can significantly reduce the surface tension of water, changing the wettability of solid surface.
With emulsion, breaking, defoaming, washing, dispersion and flocculation, a variety of functions such as antistatic and lubrication.In alkaline solution also showed good solubility. And strong foaming, foam stability.
Excellent compatibility of performance, and other effects of surfactants with increasing times. Irritant to the human body, low toxicity, biodegradable quickly without residue, are environmentally friendly products.
We have more than four years of research and development company in the country's first rhamnolipid bio surfactant powder of industrial production. Welcome you factory calls, letters inquiries, we can provide appropriate samples.

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Features of welan gum

Features of welan gum
(1) Superior compatibility with other gums.
(2) Excellent water blinding capacity.
(3) High viscosity in low concentration and slow-speed of revolution.
(4) Has characteristics as pseudoplastic fluid (shear thinning), good suspending power under idle state.
(5) Stable in pH2-12, nice salt tolerance, which means it has special stability in high salinity.
(6) Has high resistance to temperature.

Features of welan gum

Specifications of Welan gum
Regular welan gum - RWG
High viscosity Welan gum

High viscosity Welan gum of Rbbio is a new type product developed by bio-technology. Compared with like products, new generation welan gum has much better features such as thickening, stabilizing, suspension, emulsification, high viscosity, salt tolerance and high temperature resistance, which can be widely used in industry and agriculture such as oil exploitation, deep well work, concrete and additive of dry-mixed mortar.

Specifications of high viscosity Welan gum
RWG-P100
RWG-P
RWG-PD
RWG-PD100
Advantage about high viscosity welan gum
Good heat stability
Higher viscosity
Much stronger suspending ability
More excellent salt tolerance and high temperature resistance performance

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Welan gum microbial production characterization and applications

Microbial exopolysaccharides are of high molecular weight, environment friendly valuable natural polymers, having applications in diverse areas such as food industry, pharmaceutical industry, cement systems and cosmetics industries. Welan gum, a microbial product holds an important place among the exopolysaccharides due to its novel properties and potential applications.
The biopolymer welan gum is synthesized by the fermentation process mainly by the Alcaligenes sp., and is composed of polymer of tetrasaccharide backbone chain containing l-mannose, l-rhamnose, d-glucose, and d-glucuronic acid. It acts as a thickening, suspending, binding, emulsifying, stabilizing and viscosifying agent. It has important commercial applications in the cement systems. This review is primarily focused on the microbial production, purification, recovery, and the characterization based on the available published literature on the welan gum. Besides this, the biosynthesis and the various process factors affecting the production as well as properties of welan gum and its various applications have also been addressed.

Welan gum 

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Biosurfactants may be involved in pathogenesis

Bio surfactants may be involved in pathogenesis due to their surface activity; however, for security and regulatory reasons, production strains should be nonpathogenic. In the above mentioned example of rhamnolipids this is not the case as Pseudomonas aeruginosa, the most common producing bacteria, is a pathogen.

A variety of methods for the screening of biosurfactant producing microbes has been developed and successfully applied. Since the 1970th there have been various trials in this field. These screenings have mostly been limited to a manageable number of samples. In recent years automation and miniaturization have led to the development of high throughput methods for screening of biosurfactant producing strains. A broad application of such methods could eventually lead to the desired upsurge of new commercially interesting strains.

Biosurfactants may be involved in pathogenesis

An efficient screening strategy is the key to success in isolating new and interesting microbes or their variants, because a large number of strains needs to be characterized. A complete strategy for screening of new biosurfactants or production strains consists of three steps: sampling, isolation of strains and investigation of strains. Theses steps will be addressed in the next paragraphs. Bioinformatical approaches like homology search are not included herein.

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welan gum has a good price

Our company products welan gum has a good price,if you need it,please contact us.
1.grade
1). oil drilling grade(petroleum grade) xanthan gum.
2). special grade

2. property:
1)high viscosity under low rotation
2) high viscosity under low concentration
3 fine moisture retention
4)peculiar stability under high salinity
5)high temperature resistance

3. specifications: 

Appearance:	white to cream color powder
Odor	mild
pH:	7.0-9.0
Bulk density:	26.25 lbs./ ft3 (500-700kg/m3)
Specific Gravity:	1.45
Particle Size:	90% pass 80 mesh
Viscosity	0.66% in Dl water by Fann 35 at 70ºF	0.66% in Dl water by Fann 35 with 1.0 spring at 185ºF
300rpm	39-49	37-47
200rpm	33-43	32-42
100rpm	29-37	28-35
6rpm	> 17	> 17
3rpm	> 16	> 16

4.storage: stored in a cool dry ventilated place
5.shelf life: 2 years at least if properly stored

6.Application:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of
viscosity at elevated temperatures. It is used in various industries where high molecular weight
biopolymers are useful. Welan Gums have various oilfield applications, concrete, dry-mixed mortar,petroleum industry,foundry coating, pigment suspensions, cement or concrete viscosifiers, tire sealants and paint thickeners

welan gum has a good price

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Anti-high temperature biopolymers Description

Anti-high temperature biopolymers Description
The product has the general properties of biopolymer  such as thickening, suspension, emulsifying, acid-base stability, but also have good high temperature performance, temperature tolerance up to 150 ºC, it can be used deep well drilling fluid, etc. in the high temperature environment.
Packaging & Delivery
Packing :Paper bag, net 20kg/bag
Delivery Lead Time :2 weeks
Minimum Order :200kg
Supply Ability :1000mt-2000mt/year

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welan gum description and application

welan gum Description:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures. Welan Gum exhibits superior temperature stability over 200° F in fresh water and low pH fluids. Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft³. Welan Gum is used in various industries where high molecular weight biopolymers are useful.

welan gum Application:
WELAN GUM biopolyer is a high efficiency, pseudoplastic viscosifier and suspension agent used in water based drilling, workover and completion fluids. Welan gum is also used in hydraulic fracturing fluids and cementing grouts, foundary coating, pigment suspensions, cement or concrete viscosifier, tire sealant and paint thickeners.

welan gum

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bio surfactant wholesale

Our company has bio surfactant wholesale
Metsulfuron-methyl is Widely applied in wheat, barley, oat and corn to control broad-leaf weed and grass.
Metsulfuron-methyl Specifications
1. It is a systemic compound with foliar and soil activity, and it works rapidly after it is takenup by the plant.
2. Its mode of action is by hnhibiting cell dividion in the shoots and roots of the plant, and it is
Biologically active at low use rates.

Metsulfuron-methyl Application:
(1) Metsulfuron-Methyl 60% WP and 60% WDG is a residual sulfonylurea compound used as a selective pre-and postemergennce herbicide for broadleaf weeds and some annual grassed.
(2) Metsulfuron-Methyl is a systemic compound with foliar and soil activity.
(3) Metsulfuron-Methyl works rapidly after it is taken up by the plant.
(4) Metsulfuron-Methyl mode of action is by hnhibiting cell dividion in the shoots and roots of the plant, and it is biologically active at low use rates

buy Bio surfactant china

Hebei Ebio Biotechnology Co., Ltd. is a high-tech enterprise who commitments to develop biotechnology, focuses on a variety of high-level microbial polysaccharides and other biogums research and development, production and application technology development. If you want to buy bio surfactant china,please contact us.

Bio surfactant

In this study, the bacterium Bacillus licheniformis has been isolated from oil reservoir; the ability of this bacterium to produce a biosurfactant was detected. Surface properties of the produced biosurfactant were confirmed by determining the emulsification power as well as surface and interfacial tension. The crude biosurfactant has been extracted from supernatant culture growth, and the yield of crude biosurfactant was about 1 g/l. Also, chemical structure of the produced biosurfactant was confirmed using FTIR analysis. Results revealed that, the emulsification power has been increased up to 96% and the surface tension decreased from 72 of distilled water to 36 mN/m after 72 h of incubation. The potential application of this bacterial species in microbial-enhanced oil recovery (MEOR) was investigated. The percent of oil recovery was 16.6% upon application in a sand pack column designed to stimulate an oil recovery. It also showed antimicrobial activity against the growth of different strains of SRB (sulfate reducing bacteria). Results revealed that a complete inhibition of SRB growth using 1.0% crude biosurfactant is achieved after 3 h.

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bio surfactant wholesale

We are bio surfactant wholesale,if you need,you can contact us.
Metsulfuron-methyl Specifications
1. It is a systemic compound with foliar and soil activity, and it works rapidly after it is takenup by the plant.
2. Its mode of action is by hnhibiting cell dividion in the shoots and roots of the plant, and it is
Biologically active at low use rates.

bio surfactant wholesale

Metsulfuron-methyl Application:
(1) Metsulfuron-Methyl 60% WP and 60% WDG is a residual sulfonylurea compound used as a selective pre-and postemergennce herbicide for broadleaf weeds and some annual grassed.
(2) Metsulfuron-Methyl is a systemic compound with foliar and soil activity.
(3) Metsulfuron-Methyl works rapidly after it is taken up by the plant.
(4) Metsulfuron-Methyl mode of action is by hnhibiting cell dividion in the shoots and roots of the plant, and it is biologically active at low use rates

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