100 results about "Chemical Surfactants" patented technology

The invention discloses a preparation method and application of rhamnolipid. In the method, the rhamnolipid is produced by using waste grease as carbon source, and utilizing the fermentation of pseudomonas aeruginosa; and with the combination of the defoaming effect of ethanol, the yield of the rhamnolipid can reach 35 to 50 g / L and the cost is about 25 to 40 percent lower than that of the conventional method. When the solution containing 20 to 500 mg / L of rhamnolipid is used for processing plant disease fungus, the ratio of inhibiting disease fungal mycelium growth and spore germination can reach 40 to 90 percent and the plant fungal diseases can be effectively inhibited; the solution containing 20 to 500 mg / L of rhamnolipid has an obvious effect of killing cockroaches and aphids; and in addition, when the rhamnolipid is used as an aid of pesticide, fertilizer and feed and a dehydrating agent of oil-contained sludge by replacing a chemical surface active agent, the effect is obvious.

The present invention discloses an application of rhamnolipid as an additive. According to the present invention, the rhamnolipid is adopted as a pesticide additive so as to significantly improve hydrophilicity and provide temperature stability and chemical environment stability; the rhamnolipid is adopted as a fertilizer additive, such that the foliar fertilizer has effects of significant nutrient uptake promotion and plant growth promotion; and the rhamnolipid is adopted as a feed additive, such that emulsification of various nutrients in food and small intestine nutrient absorption can be promoted. With the present invention, the rhamnolipid is adopted to replace a chemical surfactant to be adopted as the additive of the pesticide, the fertilizer and the feed additive so as to provide significant effects.

The invention relates to a bacterium S2 for efficiently generating biosurfactant and a fermentation culture medium thereof, belonging to the field of biotechnology. The bacterium S2 is gram-negative bacterium which is rod-shaped, is (6-8)*(8-12) micrometers in size and has no spores and capsules. The bacterial strain belongs to the pseudomonas aeruginosa through identifying by morphological and physio-biochemical characteristics and molecular biology, and the collection code is CGMCC No.3034. The best fermentation culture medium is a novel culture medium which takes 50g / L of rapeseed oil as the only carbon source. The rhamnolipid is the only fermentation product of the bacterial strain and has high yield. The CMC (Critical Micelle Concentration) value of the fermentation liquid is 0.25 g / L; compared with the common chemical surfactant, the bacterium has more obvious emulsification and durability on hydrophobic substances, such as oils and the like.

The invention provides a method for cleaning aged oil sludge. The method comprises the steps of firstly collecting aged oil sludge from an oil field, compounding a biological surfactant (rhamnolipid), a chemical surfactant (TX-100) and an aid (NaSiO39H2O) in a certain mass ratio under conditions of certain temperature, stirring speed, stirring time, liquid-solid ratio and mass concentration, cleaning the aged oil sludge, standing, and separating after an oil phase, a liquid phase and a solid phase are layered. Due to large proportion of petroleum heavy components in the aged oil sludge, the aged oil sludge is difficult to clean. According to the method, the biological surfactant, the chemical surfactant and the aid are compounded to clean the aged oil sludge, so that a relatively good elution effect is achieved, and the biological surfactant, the chemical surfactant and the aid have a synergistic effect during the compounding and cleaning.

The invention relates to the technical field of washing agent processing, in particular to a preparation method of plant washing salt. Tea leaves, rice, cassia seeds, concha haliotidis, quartz sand, saponin, phospholipid, herba houttuyniae, Chinese wolfberry, honeysuckle, towel gourd, lotus leaves, basil, lemon slices and orange peels are taken as raw materials, and added with edible acetic acid, and fermentation is carried out after crushing and mixing, so that the pure natural plant washing salt is prepared. According to the invention, the used raw materials are natural plant raw materials, non-poisonous and harmless, contain natural decontamination components, have better decontamination capability, and are not required to be added with chemical surfactants; natural fragrance is provided by the honeysuckle, basil and lemon slices, and essence is not required to be added, so that real ecological environmental friendliness of the washing agent is guaranteed; besides, oil stains on the surface of tableware can be effectively cleaned, pesticide residues of vegetables and fruits can be removed, the sterilization and bacteriostasis effects are good, and the plant washing salt facilitates washing due to the low-foaming property, and is easily biodegradable; therefore, the plant washing salt is environment-friendly.

The invention discloses a plant-type detergent and a preparation method thereof, and belongs to the field of washing products. The plant-type detergent is prepared from the following raw materials in parts by weight: 20 to 30 parts of orange peel, 10 to 20 parts of towel gourd, 15 to 25 parts of Chinese honey locust, 8 to 15 parts of honeysuckle, 20 to 30 parts of brown sugar and 80 to 160 parts of water. The plant-type detergent is nontoxic and innocuous because the adopted raw materials are selected from natural plants, contains natural detersive ingredients and has strong detergency, so that chemical surfactants do not need to be added. The plant-type detergent is produced by virtue of a brown sugar fermentation process, so that chemical preservatives do not need to be additionally added. The plant-type detergent contains natural fragrance, so that essences do not need to be added. Thus, the complete eco-environmental friendliness of the plant-type detergent is ensured. The plant-type detergent can be used for effectively cleaning oil contaminations from the surfaces of tableware, and removing residual pesticides from vegetables and fruits. The plant-type detergent is less in foam, easy to flush and environmentally friendly.

The invention provides a method for improving the plant-based recovery efficiency of dichlorodiphenyl trichloroethane (DDT)-polluted soil. The method is to promote mycorrhiza of clover and add chemical surfactant to recover the DDT-polluted soil with the joint function of uromyces striatus schroter and the surfactant. The steps of the method include that an inoculant layer is inoculated in a culture medium; mycorrhiza is carried out to the clover and that the sprouted clover is planted in the DDT-polluted soil and the surfactant TritonX-100 is added to the soil. The joint effect of the mycorrhiza and the surfactant can remarkably improve the resistance of plants to the DDT, reduce the concentration of the DDT in the soil and have evident plant-based recovery efficiency of the DDT-polluted soil. The method of the invention can be used for reference for the recovery of the soil polluted by other organic matters.

The invention discloses a surface self-cleaning coating and a preparation method thereof. The surface self-cleaning coating comprises such components as 4-15% of deionized water / ester compound, 0.3-2% of flatting agent, 0.3-0.6% of defoamer, 0.4-0.6% of dispersant, 5-10% of nano mineral filler, 30-40% of binder, 1-3% of plasticizer, 10-15% of pigment paste, 1-3% of surface active additive, 1-2% of anti-staining seal-cleaning non-sticking agent, 2-4% of antifungal and moss / sludge / alga growing preventing inhibitor, and 18-28% of curing agent. The surface self-cleaning coating is capable of effectively preventing graffiti and resisting scaling, and self-cleaning; heavy metals or other toxic substances such as organic tin are not contained in the formula, and no chemical surfactant and alkaline products are adopted, and therefore, the film formed after the coating is cured has better durability and the surface of the film cannot be damaged by effective cleaning.

Formulations of neutral retinoids, in particular fenretinide (HPR) in the form of lipid nanoparticles, solid dipersions and emulsions are disclosed. These compositions are used to treat diseases that are amenable to treatment by HPR, such as neoplastic diseases by achieving higher and more prolonged concentrations of HPR in the subject. The key steps for preparing lipid nanovesicles of HPR include mixing and sonication, sterile filtration, without or without lyophilization for long-term stable storage, and employ processes and materials that are scalable from the laboratory to the manufacturing level. The formulation are suitable for injection into human or animal patients without causing allergic or hypersensitivity responses by avoiding chemical surfactants and animal sources of phospholipids in their manufacture.

The invention relates to a method for promoting hydrolysis of sludge to produce acid by using a biosurfactant alkyl polyglucoside. The invention aims to solve the problem that the chemical surfactant, which is used in the existing method for promoting anaerobic fermentation of surplus sludge to produce acid by using a chemical surfactant, is toxic and non-biodegradable, and thus, can result in secondary pollution. Secondary sedimentation tank sludge in a sewage treatment plant is used as the raw material to perform anaerobic fermentation under the condition of adding the biosurfactant alkyl polyglucoside. The biosurfactant alkyl polyglucoside used in the method not only has the characteristics in common nonionic and anionic surfactants, but also has the characteristics of high surface activity, favorable ecological safety and high compatibility, and can improve the leaching of organic substances and promote the fermentation of surplus sludge to produce acid. The invention has favorable reference value for practical application and short-chain fatty acid reclamation in the process of sludge hydrolysis to produce acid.

The invention discloses a method for producing acid through promoting anaerobic fermentation of residual sludge by virtue of a rhamnolipid biosurfactant, and the method is used for solving the problems that in the existing method for producing acid through promoting the anaerobic fermentation of the residual sludge by virtue of a chemical surfactant, the chemical surfactant is toxic, can not be biodegraded and can cause the secondary pollution of the residual sludge, and the acidifying effects of the chemical surfactants sodium dodecyl sulfate and sodium dodecyl benzene sulfonate on the residual sludge are weak. The method comprises the following steps of: 1, preparing a sludge sample; 2, adding rhamnolipid; and 3, carrying out anaerobic fermentation. According to the invention, the rhamnolipid biosurfactant is good in biodegradability and environmental friendliness, can be used for gradually eliminating the toxicity and secondary pollution of the residual sludge and has the great promotion effect of acid production by the fermentation of the residual sludge. The method disclosed by the invention is used for promoting acid production by the anaerobic fermentation of the residual sludge.

The invention discloses a complex biological oil displacement agent, which comprises a biosurfactant and a chemical surfactant which are prepared in a weight ratio of (1:1)-(8:1), wherein the biosurfactant is a rhamnolipid fermentation stock solution, and the chemical surfactant is fatty acid amide sulpho monoester potassium maleate. In the complex biological oil displacement agent, the using amount of the chemical surfactant is low (namely 0.0125 weight percent), and a complex system can reach ultra-low interfacial tension of less than 10<-2>mN / m order of magnitude, so the complex biological oil displacement agent has the advantages of high oil displacement efficiency, simple preparation process, low cost and the like, and is suitable for the popularization and application of the further improvement on a recovery ratio in high-water-content oil fields.

The invention provides a microbial-chemical composite oil displacement agent which is prepared by compounding a fermentation liquor of pseudomonas aeruginosa ATCC9027 and a dimethyl fatty acid amide propyl paratoluenesulfonic acid ammonium salt surfactant. The invention further provides a preparation method and application of the composite oil displacement agent. The fermentation liquor of pseudomonas aeruginosa ATCC9027 and the dimethyl fatty acid amide propyl paratoluenesulfonic acid ammonium salt surfactant are compounded to obtain the microbial-chemical composite oil displacement agent. The advantages that microorganisms are simple in construction in oil production, clean and environment-friendly, significant in chemical surfactant effect and stable in performance are synthesized, and the microbial-chemical composite oil displacement agent is of great significance in heavy oil recovery in the future.

The invention discloses modified bio-char as well as a preparation method and an application thereof. The modified bio-char is obtained by impregnating acid modified bio-char with a micellar system, wherein the micellar system comprises an anionic biosurfactant, a cationic chemical surfactant and a humic acid solution. The preparation method comprises the following steps: (1) preparing bio-char; (2) preparing the acid modified bio-char; (3) preparing the micelle modified bio-char. The modified bio-char has the advantages of high adsorption capacity, high adsorption stability, good dispersibility in water and the like; the modified bio-char and a ferric salt flocculant are combined to be applied to removal of phenol from industrial wastewater, can realize integration of adsorption and flocculation, improve the flocculation effect of a water treatment agent, shorten time of a treatment process and reduce waste residues.

The invention relates to a method for promoting anaerobic fermentation acid production of excess sludge through lipopeptide biosurfactant, namely surfactin. The existing chemical surfactant cannot obviously improve anaerobic fermentation acid production effect of residual sludge, is relatively poor in biodegradability and easily results in secondary pollution. The surfactin adopted by the invention is a microorganism fermentation product which has the characteristics of being low in toxicity, easily biodegradable, and capable of keeping excellent surface activity within large temperature and pH value ranges and the like; and the surfactin cannot generate secondary pollution to the environment, is capable of obviously promoting anaerobic fermentation acid production of residual sludge, is high in acid yield, and capable of favorably promoting anaerobic fermentation acid production of the residual sludge with relatively low dosage.

The invention discloses a safe, skin-friendly, specialized sterilizing, environment-friendly efficient decontaminating aerobic soaking powder composition. The composition is prepared from the following raw materials by mass percent: 20-40% of activity enhancer, 20-50% of plant surfactant, 5-20% of external stabilizer, and 10-25% of other additives, wherein the activity enhancer is prepared from bio-enzyme preparation, whitener and activator, and the plant surfactant is selected from any one or more of fatty acid methyl ester sulfonate, alkyl glycoside, sapindoside, tea saponin and gleditsioside. In the washing powder composition, plant surfactant replaces chemical surfactants in traditional washing powder, further the plant surfactant is made of natural plants and does no causes pollutionin processing, so that the final product has no toxicity to human body, has small irritation and is easy to biodegrade.

The invention provides a method for degrading hydrocarbon pollutants in oil field oily sludge by using microorganisms. The method comprises the following steps of: S1, chemical thermal washing: takingoily sludge, adding clear water according to a certain liquid-solid ratio, mixing the clear water with the oily sludge, adding a chemical surfactant, and performing heating and stirring in a reactionkettle, conducting centrifugal separation after cleaning, collecting and recycling an upper-layer oil phase, and obtaining a solid-state layer to be treated; S2, biological thermal washing: taking the solid-state layer obtained in the step S1, adding clear water according to a certain liquid-solid ratio, mixing the clear water with the to-be-treated phase of the solid-state layer, adding a biological surfactant, and arranging an obtained mixture in a reaction kettle so as to heat and stir the mixture, conducting centrifugal separation after cleaning, collecting and recycling an upper-layer oil phase, and obtaining a solid-state layer is to be treated; and S3, microbial degradation: mixing the solid-state layer with wood chips, and adding a compound microbial agent, and then carrying out compost degradation. The oil content of the oily sludge treated by the method is less than or equal to 0.1%, and the content of C4-C20 is less than or equal to 0.01%.

The present invention provides one kind of chemical product and its preparation process. The process of using soybean oil leftover to produce chemical surfactant includes the reaction of soybean oil leftover, dilute sulfuric acid and methanol to produce mixed fatty acid methyl ester, the reaction of mixed fatty acid methyl ester and glycolamide to produce fatty acid glycolamide, the reaction of fatty acid glycolamide, maleic anhydride and boric acid to produce oleic glycolamide sulfo succinate as surfactant. The surfactant is used mainly in producing detergent, tableware washing liquid, shampoo, soap, surface cleaning agent, dirt cleaning agent and other daily chemical products. The present invention can save resource and reduce pollution.

The invention relates to a method for modifying magnetic bentonite by a biosurfactant. The method comprises the steps of firstly burying straws and rice husks in farmland soil for composting, performing enrichment culture on compost and domesticating a biosurfactant to generate a bacterial strain, continuously performing fermental cultivation, re-suspending fermentation liquor by using dichloromethane, filtering, extracting, centrifuging, and collecting sediment, thus obtaining a purified biosurfactant. The purified biosurfactant is used for replacing a conventional chemical surfactant, modifying the magnetic bentonite, and preparing to obtain a novel adsorber; the novel adsorber is applied to removal of uranium in low-concentration uranium-containing wastewater. The adsorber has good adsorptive property, needs main raw materials of agricultural waste biomass and natural minerals, is pollution-free to environment, and truly realizes resource conservation and environment friendliness. The method is simple, mild in reaction condition, and easy in magnetism control, and the uranium content in the low-concentration uranium-containing wastewater with the concentration of 0.45-0.55 mg / L can be reduced by 95 percent or more.

The invention discloses a preparation method of a dielectric material for a high energy storage capacitor, the invention relates to the technical field of dielectric materials, the preparation methoduses polyaniline coated with inorganic nanoparticles as a filler, polyvinylidene fluoride as polymer matrix, metal Ni as the load. Firstly, the surface of inorganic nanoparticles is modified by physical ball milling and chemical surfactant, a supercritical fluid reaction is adopted to coat polyaniline on the surface of the inorganic nanoparticles, so that a composite fill is prepared, the composite fill and the polyvinylidene fluoride are spun into a fibrous membrane by melt electrospinning, at last, the metal Ni load and the polyvinylidene fluoride are composited on the fiber membrane by magnetron sputter, the load of the metal Ni not only helps to fill the high porosity of the electrospun fiber film, but also helps to maintain high breakdown field strength, high energy storage density, high dielectric constant and low dielectric loss of the dielectric material, and the composite dielectric material has high energy storage performance.

The invention provides a tea pulp powder detergent and a preparation method thereof. A composition of tea pulp powder and three anionic surfactants (sodium lauryl alcohol sulfate, sodium tripolyphosphate and sodium dodecyl benzene sulfonate) is used as a raw material, wood meal and kaolin are added as frictional materials, and a mixture of sodium diacetate and dimethyl fumarate is used as a mold preventive. The preparation method comprises the following steps: mechanically stirring and mixing, and carrying out microwave sterilization to obtain the tea pulp powder detergent. The tea pulp powder detergent has very high oil sludge cleaning actions, lowers the chemical surfactant consumption, and reduces the environmental pollution.

The invention provides a method for restoring phenanthrene-contaminated soil by applying a biosurfactant and mycorhiza. The method mycorrhizals purple medic and adds the biosurfactant, and the purple medic and the biosurfactant act together to restore phenanthrene-contaminated soil and are compared with a chemical surfactant. The method comprises the following steps: inoculant is inoculated to a cultivated stroma, purple medic is mycorrhizaled, and the purple medic after pregermination is planted in the phenanthrene-contaminated soil, is added with biosurfactant of Rhanopylanoside and chemical surfactant of Triton X-100 which are compared with each other. The mycorhiza and the surfactant act together to remarkably reduce the residual concentration of phenanthrene in the body soil, and can remarkably improve the biological repair efficiency of the phenanthrene-contaminated soil. The restore efficiency of inoculating and Triton X-100 is less than that of inoculating Rhanopylanoside. The method has reference function on restoring other organic polluted soil.

The invention relates to a preparation method of a N-octyl mangosteen peel polyphenol surfactant, and belongs to the field of surfactant preparation. A phenolic surfactant which is prepared through the steps that mangosteen peels are dried in the sun and pulverized, peel powder is collected to extract peel polyphenols, and modification is conducted is provided aiming at the problems that at present, a chemical surfactant is poor in emulsifying property, low in environmental friendliness, poor in oxidation resistance of a plant surfactant and short in action time. Compared with the original plant surfactant, the duration of use of the prepared N-octyl mangosteen peel polyphenol surfactant is improved by 30%-35%, the mangosteen peels are fully used for preparation, resources are saved, and green and environmental friendliness are achieved.

The invention discloses a biodegradable and environment friendly glass cleaning solution. The biodegradable and environment friendly glass cleaning solution is composed of, by weight part, 3-8 parts of biological surfactant, 0.1-0.5 part of bio-enzyme mixture, 1-5 parts of biological corrosion inhibitor, 70-90 parts of deionized water and 5-20 parts of freezing point reducer. According to the biodegradable and environment friendly glass cleaning solution, the biological surfactant replaces chemical surfactant in traditional glass cleaning solutions, the bio-enzyme mixture removes shell-lac, the biological corrosion inhibitor achieves corrosion inhibiting effects, so that the biodegradable and environment friendly glass cleaning solution can remove dirt, resist freezing, remove the shell-lac, avoid corrosion and the like, and more importantly, can fully achieve biodegradation and zero environmental pollution and have no harm on human, animals and plants, thereby being safe and environmentally friendly.

Disclosed are novel compounds having biosurfactant activity that are produced by an Aureobasidium pullulans L-3-GPY strain. The chemical structure of the novel compounds having biosurfactant activity has been analyzed by using a spectrophotometer, and it has been confirmed that the compounds produced by the above strain show excellent surfactant activity.The active ingredient of the biosurfactant according to the present invention can be applied in various fields such as a cleansing and purifying compositions. Further, the active ingredient of the biosurfactant can be used in numerous industrial fields where chemical surfactants have been conventionally used such as medical, foods, cosmetics, purification of oil contaminated land and seawater, milk fat degradation, and the like.

The invention discloses a compound surfactant which is prepared from two biosurfactants, rhamnolipid and saponin, according to a certain proportion. According to the proportion, the two surfactants are compounded and prepared according to a simple method and then the mixture is mixed with oil sludge in an oil field with the oil content of 11.61%, and then vibration, centrifugation, supernatant removal and air drying are carried out according to specified steps; wherein the residual rate of petroleum hydrocarbon is as low as 4.39%. Compared with a chemical surfactant adopted in the current engineering, the compound surfactant is cleaner, low in toxicity and low in cost.

The invention discloses a method for preparing eucommia seed oil micro-emulsion. The eucommia seed oil micro-emulsion prepared with the method is prepared by the steps: taking eucommia seed oil prepared by a bio-surfactant with an aqueous enzymatic method as a main raw material, taking a cosurfactant, emulsion and water as auxiliary materials, and preparing the micro-emulsion through phase inversion emulsification. The micro-emulsion prepared with the method solves the problem that the eucommia seed oil is difficult to store due to high content of unsaturated fattyacids, reduces application ofa chemical surfactant, and has the characteristics of being green and safe. Meanwhile, freeze-dried powder obtained by drying the eucommia seed oil micro-emulsion is stable in product property, highin encapsulation efficiency and wide in application range.