2464 results about "Fatty alcohol" patented technology

The invention discloses an anti-blocking agent and a preparation method and application thereof, and belongs to the technical field of chemical fertilizer assistants, and the anti-blocking agent comprises at least one of a surfactant capable of controlling the length of hydrophilic and hydrophobic chain segments, a macromolecular surfactant and inert powder. Wherein the surfactant capable of controlling the length of the hydrophilic and hydrophobic chain segment comprises at least one of fatty alcohol-polyoxyethylene ether, fatty acid methyl ester polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty acid amide and fatty glyceride. The anti-blocking agent is prepared in a blending mode, the anti-blocking agent is directly put into the liquid raw materials of the fertilizer to be evenly mixed, through the spray drying technology, moisture is completely evaporated, main components of the anti-blocking agent are firmly attached to the surfaces of powder fertilizer particles, the raw materials are easy to obtain, preparation is convenient, and the anti-blocking agent has the advantages of being high in anti-blocking efficiency, convenient to use and the like.

A preparation method for a stable fatty alcohol emulsion. A silane coupling agent is used for carrying out surface modification on silicon dioxide to finally obtain modified silicon dioxide, and the modified silicon dioxide is adsorbed on the interface of defoaming active substances and water, so that the active substances are dispersed, the problem of product creaming caused by aggregation is avoided, and the defoaming performance of the product is improved; in addition, during emulsification, a non-ionic surfactant and an acrylate polymer act synergistically to emulsify the active substances, so that the stability of the emulsion is further improved.

The invention relates to the technical field of preparation of surfactants, in particular to a PPO / PEO block Gemini ductile surfactant suitable for high-temperature and high-salt oil reservoirs and a preparation method of the PPO / PEO block Gemini ductile surfactant. The preparation method comprises the following steps: by taking fatty alcohol as an initial raw material, carrying out gradual addition on the fatty alcohol, propylene oxide (PO) and ethylene oxide (EO) through a potassium hydroxide / 18-crown ether-6 catalytic system to prepare an APOnEOm intermediate; the preparation method comprises the following steps: carrying out esterification with a polyethylene glycol bismaleate connecting group, and finally sulfonating with sodium hydrogen sulfite to obtain polyethylene glycol bismaleate diester sodium sulfonate (T-APOnEOm-S). By regulating and controlling the PPO / PEO block ratio, the product has excellent temperature resistance and salt resistance, is suitable for high-temperature and high-salt oil reservoirs, has strong emulsifying capacity, can reduce the oil-water interfacial tension to 10 <-3 > mN / m level, and remarkably improves the oil recovery rate. The preparation process is mild in condition and adjustable in product performance, and has important application value in the field of tertiary oil recovery.

The invention discloses a composite viscosity reducer and an oil extraction and viscosity reduction process thereof, and belongs to the technical field of petrochemical engineering. The composite viscosity reducer comprises an amphiphilic copolymer, sodium fatty alcohol polyoxyethylene ether sulfonate, modified nano silicon dioxide and water, wherein the composite viscosity reducer is prepared from 0.5 to 5 weight percent of amphiphilic copolymer, 0.05 to 2 weight percent of fatty alcohol polyoxyethylene ether sodium sulfonate, 5 to 15 weight percent of modified nano silicon dioxide and the balance of water. The composite viscosity reducer has good temperature resistance and can adapt to a complex oil reservoir environment, and the composite viscosity reducer can be matched with a hydrodynamic cavitation transducer, so that sodium fatty alcohol polyoxyethylene ether sulfonate can be fully mixed and emulsified with crude oil, the crude oil is heated, and the oil displacement and viscosity reduction effects are further improved.

The invention discloses gel foam for preventing spontaneous combustion of coal, and belongs to the technical field of gel foam fire extinguishing. The gel foam comprises the following components: 0.1-0.5% of a composite foaming agent, 5-15% of a gelling agent, 0.1-0.5% of a cross-linking agent and the balance of water, the composite foaming agent is sodium lignin sulfonate and sodium fatty alcohol polyoxyethylene ether carboxylate; the gels are silica sol and sodium alginate. The gel foam has excellent water-retaining property, and can relieve water loss and weight loss of coal; the flame retardant can effectively hinder the contact between coal and oxygen, interrupt the free radical chain reaction of coal and avoid the oxidation weight gain of coal, and has an excellent flame retardant effect; in the combustion process, less heat is generated, and the smoke suppression effect is excellent. The gel foam does not contain antioxidants and flame retardants, can avoid environmental pollution, is an environment-friendly anti-oxidation gel foam, and can be used as an efficient fire preventing and extinguishing material in the field of preventing spontaneous combustion of coal.

The invention discloses a large-aperture aluminum oxide loaded copper-based catalyst as well as preparation and application thereof. The large-aperture alumina-loaded copper-based catalyst comprises a large-aperture alumina carrier, and copper oxide and lanthanum oxide loaded on the surface of the large-aperture alumina carrier, the large-aperture alumina-loaded copper-based catalyst is granular, the specific surface area is 250-500 m < 2 > / g, the pore volume is 1.0-2.0 cm < 3 > / g, the average aperture is 16-30 nm, and the pore diameter of the large-aperture alumina-loaded copper-based catalyst is 20-30 nm. The large-aperture alumina supported copper-based catalyst comprises the following components in percentage by mass: 79%-98.9% of a large-aperture alumina carrier, 0.1%-6% of copper oxide and 1%-15% of lanthanum oxide. The large-aperture aluminum oxide loaded copper-based catalyst disclosed by the invention shows relatively high catalytic activity and higher alcohol selectivity in a reaction for preparing higher alcohol from ethanol, and particularly has relatively high C6-C10 fatty alcohol selectivity.

The invention discloses a synthesis method of a non-silicon defoaming agent and application of the non-silicon defoaming agent in the field of scandium extraction in hydrometallurgy. The defoaming agent is synthesized by a component A, a component B and a component C through a two-step reaction, the synthesis method comprises the following specific synthesis steps: 1) carrying out esterification reaction on an amino acid substance A and a fatty alcohol substance B to generate an amino ester substance D; and 2) carrying out substitution reaction on the amino ester substance D and a triazine compound C to obtain the non-silicon defoaming agent. The defoaming agent disclosed by the invention is wide in application range, can be applied to links such as a laterite-nickel ore hydrometallurgy front-end scandium extraction method and an MHP hydrometallurgy scandium impurity removal process, is added as an auxiliary agent in the extraction process, and is used for reducing the surface tension of liquid, preventing the formation and enrichment of a third-phase substance and reducing the occurrence of an emulsification phenomenon; the process stability and the output quality are improved, and the method has important industrial application value.

This application discloses a detergent tablet free of SLS surfactant and its preparation method. The detergent tablet includes a film-forming agent, an anionic surfactant, a non-ionic surfactant, a chelating agent, an enzyme preparation, an auxiliary agent and a essence. The film-forming agent includes one or more of polyvinyl alcohol, cellulose, and dodecenyl succinate starch ester. The anionic surfactant includes at least two of sodium α-olefin sulfonate, sodium fatty acid methyl ester sulfonate, and sodium hydroxyethyl sulfonate. The non-ionic surfactant includes at least two of fatty alcohol polyoxyethylene ethers, fatty acid methyl ester ethoxylate, and oil ethoxylate.

The invention discloses narrow-distribution fatty alcohol-polyoxyethylene ether and a preparation method and application thereof.The preparation method mainly comprises the following steps that 1, fatty alcohol with different carbon chain lengths serves as an initiator and is subjected to an addition reaction with ethylene oxide under the action of a basic catalyst, and then an intermediate is prepared through the processes of acid neutralization, adsorption separation and the like; and (2) reacting the intermediate prepared in the step (1) with ethylene oxide under the action of a composite catalyst by taking the intermediate prepared in the step (1) as an initiator to prepare the narrow-distribution fatty alcohol-polyoxyethylene ether. The preparation method provided by the invention has the advantages of high reaction speed, high product yield and the like, the production cost of industrial products can be effectively reduced, the prepared narrow-distribution fatty alcohol-polyoxyethylene ether is narrow in relative molecular mass distribution, low in residual alcohol content and free of high-EO polyether components, and compared with a traditional fatty alcohol polyether product catalyzed by a single base, the narrow-distribution fatty alcohol-polyoxyethylene ether has the advantages that the reaction speed is high, and the product yield is high. The pour point is lower, and the wettability on fabrics and hard surfaces is obviously superior.

The invention provides a nano imbibition displacement agent suitable for shale oil reservoirs and a preparation method thereof, and the nano imbibition displacement agent comprises the following raw materials in parts by weight: 30-50 parts of sulfonated graphene oxide, 10-15 parts of silane coupling agent modified nano silicon dioxide, 10-20 parts of water-soluble cellulose ether, 10-20 parts of fatty alcohol-polyoxyethylene ether, 5-8 parts of lower alcohol and 50-80 parts of water. Graphene oxide reacts with concentrated nitric acid to prepare acidified graphene oxide, then the acidified graphene oxide reacts with thionyl chloride to prepare acylating-chlorinated graphene oxide, and the acylating-chlorinated graphene oxide reacts with a sodium aminobenzene sulfonate derivative to prepare the graphene oxide. Electrostatic repulsive force is generated among graphene oxide particles through surface sulfonation treatment, the dispersing capacity among the particles is improved, agglomeration and flocculation among the particles are avoided, and the recovery efficiency is improved; sulfonated graphene oxide cooperates with a large-molecular-weight water-soluble cellulose ether surfactant, so that the temperature resistance and the salt resistance of the nano imbibition displacement agent can be remarkably improved.

The invention discloses a functional fracturing fluid directly prepared from flow-back fluid of complex water quality. The fracturing fluid is prepared by directly adding a salt-tolerant polymer and an ion trapping agent into the flow-back fluid. The addition amount of the salt-tolerant polymer accounts for 0.15-0.3% of the total mass of the fracturing fluid, and the addition amount of the ion trapping agent is 100-500ppm. The salt-tolerant polymer is prepared by copolymerization of acrylamide, a salt-tolerant monomer and an allyl quinoline monomer, and the molecular weight of the polymer is 4-15 million. The salt-tolerant monomer is acrylamide polyoxyethylene sodium benzenesulfonate or acrylamide sodium sulfonate. The ion trapping agent is prepared from amino trimethylene phosphonic acid, diethylene triamine penta (methylene phosphonic acid), ethylene glycol bis (2-aminoethyl ether) tetraacetic acid, p-methylphenyl diethanol amine, 2, 3-epoxypropyl trimethyl ammonium chloride, fatty alcohol-polyoxyethylene ether, citric acid and tetrahydrofurfuryl acrylate. The fracturing fluid can be directly prepared from the flow-back fluid, the flow-back fluid does not need to be pretreated, and repeated utilization of the fracturing flow-back fluid is achieved.

The invention provides a sulfonator for preparing fatty alcohol polyoxyethylene ether sodium sulfate and a production process of the sulfonator, relates to a novel falling film sulfonator, and belongs to the technical field of manufacturing of reaction devices for producing anionic surfactants by sulfating gas SO3. The invention provides a novel falling film sulfonator capable of being used for producing fatty alcohol polyoxyethylene ether sodium sulfate with ultralow dioxane content, the sulfonator improves the structure of a reaction tube, and a separation layer is formed between SO3 diluted gas and an organic material liquid film by introducing a balance wind concept, so that the content of the dioxane in the organic material liquid film is reduced, and the content of the dioxane in the organic material liquid film is reduced. According to the falling-film sulfonation tube, the sharp temperature interval at the upper part of the falling-film reactor tends to be mild, and the sulfonation / sulfation reaction rate in the length of the whole falling-film sulfonation tube tends to be balanced, so that the output of dioxane is reduced, the product quality is improved, the subsequent post-treatment of AES products is avoided, and the production energy consumption is reduced; the device is easy to operate and has certain practicability.

A surfactant system comprising an anion surfactant, a fatty alcohol ethoxylate and a mannosyl erythritol lipid can be used in detergents, cleaning or textile care products and has improved detergent power.

The invention relates to the field of zipper processing, in particular to a processing method of a fluoride-free DWR waterproof zipper, which sequentially adopts four steps of pretreatment, padding treatment, drying treatment and heat treatment to carry out waterproof processing on the zipper, the fluorine-free DWR waterproof zipper prepared by matching paraffin, polyether modified silicone oil, carbodiimide, nano silicon dioxide dispersion liquid, fatty alcohol-polyoxyethylene ether and diethylene glycol monobutyl ether has the following advantages that 1, the fluorine-free DWR waterproof zipper meets the limitation requirements of Europe and America regulations and various standards on fluorine element, 2, the waterproof grade meets the grade 4.5 or above of standards such as AATCC / ISO / GB / T and the like, and the fluorine-free DWR waterproof zipper has a good waterproof effect. 3, the washing resistance can reach more than 20 times of washing and drying tests; 4, the phenomenon of white grasping in the market is avoided; and 5, the anti-siphon performance can reach 10H without climbing.

The invention relates to the field of non-woven fabrics, in particular to a medical antibacterial non-woven fabric and a preparation method thereof.The medical antibacterial non-woven fabric is characterized in that an SMS non-woven fabric is soaked in a composite finishing liquid, after-finishing is conducted through a two-soaking and two-rolling process, and the problem that dust, germs and other fine substances in air are adsorbed due to the electrostatic interaction caused by poor moisture absorption performance of existing non-woven fabrics is solved; in addition, the hydrogel has good biocompatibility and antibacterial performance; the composite finishing liquid is prepared from the following raw materials in parts by weight: 15 to 18 parts of dimethylol dihydroxy ethylene urea resin, 3 to 4 parts of composite microspheres, 6 to 8 parts of composite cellulose, 2.5 to 3 parts of magnesium chloride, 0.2 to 0.5 part of fatty alcohol-polyoxyethylene ether and 100 parts of water.

The invention discloses a nano suspension slow-release water-soluble fertilizer. A polymer biodegradable film material is pretreated and then is subjected to a condensation reaction with an aldehyde substance under an acidic condition, and then a nitrogen-containing fertilizer is added; adding a dispersing agent and sodium silicate to obtain a solution A; performing cross-linking reaction on fatty alcohol-polyoxyethylene ether and carboxymethyl cellulose, and then adding liquid oil to obtain a solution B; mixing the solution A and the solution B, adding water glass, adjusting the pH to be nearly neutral, and adding an anti-crystallization material to obtain a solution C; and adding an anti-skinning agent and a slow-release inhibiting material into the solution C, uniformly mixing, and adding into the fertilizer. The fertilizer prepared from the waste polymer biodegradable film material has the characteristics of high suspension degree, high stability, high fluidity and homogeneous phase, and is easily compounded with other elements and media. The method is simple and easy to apply, saves energy and raw materials, and is low in production cost and remarkable in synergism.

The invention discloses a lithium iron phosphate positive electrode material preparation method, which comprises: 1, adding high polyphosphoric acid and fatty alcohol ether polyoxyethylene ether into a reaction kettle, uniformly mixing, and carrying out a reaction for 2-4 h at a temperature of 70-90 DEG C to obtain fatty alcohol polyoxyethylene ether phosphate; 2, adding iron phosphate, a lithium source, a conductive agent, a metal compound and the fatty alcohol-polyoxyethylene ether phosphate into water, and carrying out ball milling to form mixed slurry; and 3, sequentially carrying out spray drying, sintering and crushing on the mixed slurry to obtain the lithium iron phosphate positive electrode material. Compared with the prior art, the lithium iron phosphate positive electrode material has the advantages that the carbon coating mode of the lithium iron phosphate positive electrode material is optimized by adopting the scheme of taking the fatty alcohol polyoxyethylene ether phosphate as the carbon source, relatively large steric hindrance is generated by decomposition of the carbon source in the sintering process, and growth of lithium iron phosphate particles is hindered; and the lithium iron phosphate positive electrode material with small particle distribution as a main component is prepared.

The invention relates to the technical field of wax emulsions for yarn weaving, in particular to a wax emulsion which has spinnability, hand feeling and stability and is free of layer difference and a preparation method and application of the wax emulsion. The wax emulsion comprises a component A and a component B, wherein the component A is selected from two or more of oxidized modified polyethylene wax, fatty alcohol-polyoxyethylene ether and paraffin; the component B is prepared from the following components in percentage by weight: 2.5 to 5 percent of a cationic surfactant, 2.5 to 5 percent of a nonionic surfactant, 0.1 to 0.5 percent of an antibacterial agent, 0.5 to 1 percent of a pH regulator and the balance of water. The wax emulsion provided by the invention has excellent lubricating effect, softening effect and permeation effect, has no middle-outer layer difference and excellent stability, and does not influence the color light and fastness of a dyed fabric.

The present invention relates to the field of oil exploitation and oilfield chemical materials, particularly to a fatty alcohol copolymer and a surfactant composition, a preparation method therefor, and a use thereof. The copolymer has a chemical structure represented by formula (1), wherein R is selected from substituted or unsubstituted C14-C70 alkyl and substituted or unsubstituted C14-C70 alkenyl, a substituent for the substitution is selected from at least one of hydroxyl, halogen, cyano, nitro, and amino, x is selected from a positive integer of 20-50, and y is selected from a positive integer of 20-40. In the present invention, the surfactant comprising the fatty alcohol copolymer has the characteristics of good high-temperature resistance and salt resistance and low oil / water interface tension.

The invention relates to a phyllostachys praecox acidified soil conditioner and a phyllostachys praecox planting method. The phyllostachys praecox acidified soil conditioner is prepared from, by mass, 20-40 parts of zeolite, 10-30 parts of fermented cow dung, 5-10 parts of inorganic salt, 10-20 parts of modified calcium hydroxide, 1-10 parts of nutrient substances and 1-10 parts of auxiliaries. Wherein the modified calcium hydroxide is acrylic acid, fatty alcohol polyether and acrylamide modified calcium hydroxide. According to the invention, the soil structure can be improved, the problem of soil acidification can be solved, the effects of regulating plant growth and promoting yield and income increase of crops are also achieved, good improvement and promotion effects on phyllostachys praecox planting are achieved, the problems existing in the prior art are solved, and great significance is achieved on agricultural economic development.

The present application relates to the technical field of daily chemical cleaning products, and discloses a kind of wormwood leaf, enzyme laundry detergent, including the following components, by weight percentage: wormwood leaf enzyme: 30-50wt%, environmental protection enzyme: 10-20wt%, composite surfactant: 5-10wt%, including fatty alcohol polyoxyethylene ether sulfate and alkyl glycoside, wherein fatty alcohol polyoxyethylene ether sulfate accounts for 60-80wt% of the total amount of composite surfactant, and alkyl glycoside accounts for 20-40wt% of the total amount of composite surfactant; Dispersant: 0.3-1wt%; Enzyme-surfactant composite catalyst: 1-5wt%. The present invention adopts the technical scheme of combining wormwood leaf enzyme with environmental protection enzyme, extracts active enzyme and natural functional ingredients by fermentation, and realizes efficient decomposition of organic stains such as grease and protein. Compared with the scheme of using only chemical surfactant in the prior art, the problem of environmental pollution and skin irritation of chemical detergent is solved, and the safety and environmental protection of washing are significantly improved.

The invention relates to a laundry gel bead with excellent stability. The laundry gel bead with excellent stability comprises the following components: a surfactant, a modified surfactant, a solvent, a neutralizer, a chelating agent and an auxiliary agent, wherein the modified surfactant is obtained by reacting acrylic acid modified fatty alcohol-polyoxyethylene ether, sodium p-styrenesulfonate and methyl oleate ethoxylate. As the modified surfactant contains a large amount of ethyoxyl and other groups, the modified surfactant can act together with other ethyoxyl-containing surfactants to balance the irritation caused by a large amount of sulfonic acid, saturated fatty acid and other components in the laundry gel bead formula, thereby enhancing the mildness of the laundry gel beads, lowering the irritation of the washed clothes residues, and enhancing the laundry gel bead mildness. The irritation to skin and clothing fibers is effectively reduced; in addition, the modified surface active agent, the anionic surface active agent and the nonionic surface active agent act together, so that the dirt-removing capability of the laundry condensate beads is improved together.

The invention discloses an antifouling agent, a micro-nano mesoporous material and a marine antifouling composition. A preparation method of the micro-nano mesoporous material comprises the following steps: S1, sequentially carrying out hydrothermal acid etching, cleaning, roasting and cooling on a micro-nano mesoporous material matrix for later use; s2, dissolving a DCOIT-like derivative and halogenated fatty alcohol in a solvent, heating and refluxing, dropwise adding a mixed solution of diisocyanate and a catalyst, and continuously carrying out heat preservation reaction; and S3, grinding and bulking the micro-nano mesoporous material modified matrix prepared in the step S1 to fully release agglomerated fiber bundles, ultrasonically dispersing the fiber bundles in a solvent, adding the dispersed fiber bundles into a system in the step S2, carrying out a heating reaction, purifying, drying, grinding, and storing. Activated silicon hydroxyl enriched in a micro-nano mesoporous material modified matrix is covalently linked with degradable terminal isocyanate (R-NCO) in quaternized DCOIT derivatives, and the method has the properties of high efficiency, broad spectrum, low toxicity and long-acting effect.

The present invention relates to an aluminum oxide CMP polishing solution for a SIC substrate and a preparation method therefor. The polishing solution comprises the following raw materials in parts by weight: 8-10 parts of aluminum oxide powder, 8-10 parts of a suspending agent, 8.5-10 parts of a dispersant, 4-5 parts of a pH regulator, 5-6 parts of an oxidizing agent, 4-5 parts of a defoamer, and 75-80 parts of deionized water. The dispersant is one or a mixture of fatty alcohol ether phosphate, fatty alcohol ether phosphate potassium salt, isotridecyl phosphate, polyethylene glycol stearate, polyethylene glycol monolaurate, and polyethylene glycol monooleate. In the present invention, full dispersion and stable suspension of aluminum oxide micropowder can be achieved without any agglomeration, such that abnormal scratches can be prevented from being generated in a grinding process and then affecting the polishing quality; in addition, the use of an alkaline polishing solution can effectively protect devices from damage, prolong the service life of the devices, and increase the machining precision.

The invention relates to the technical field of degreasing agents, and discloses a nonionic water-based degreasing agent for removing titanium alloy scrap dirt. Comprises, by weight, 70%-80% of water, 4%-6% of potassium hydroxide, 1%-2% of disodium ethylene diamine tetraacetate, 1%-3% of urea, 1%-2% of borax, 0.2%-0.4% of sodium benzoate, 0.3%-0.6% of water glass, 5%-9% of fatty alcohol-polyoxyethylene ether, 4%-6% of alkylphenol polyoxyethylene ether, 3%-6% of oleic acid, 2%-3% of triethanolamine and 0.5%-1.5% of ethyl alcohol. The nonionic water-based degreasing agent for removing the titanium alloy scrap dirt mainly comprises nonionic surfactants, chelating agents, pH regulators and the like, the pH regulators such as potassium hydroxide promote grease to be converted into soaps through alkaline components and enhance the cleaning effect, the nonionic surfactants such as fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene ether have the effect of improving the cleaning effect, and the nonionic surfactants such as fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene ether have the effect of improving the cleaning effect. The surfactant has amphiphilic properties, can be effectively inserted into oil stains and help the oil stains to be stripped from metal surfaces, and a solubilizer such as urea is combined with the surfactant, so that dirt is stably dispersed, and thorough cleaning is ensured.

The invention belongs to the technical field of drier preparation, and particularly relates to a dishwasher drier and a preparation method and application thereof. The dishwasher drier provided by the invention comprises fatty alcohol-polyoxyethylene ether, a fatty alcohol polyethylene / polypropylene ether copolymer, water-based fluorine-containing polyether siloxane, a polyacrylate modified polymer, sodium isooctanol sulfate, a chelating agent, a suspension stabilizer, a preservative and water. The stainless steel foam inhibitor is applied to an automatic dish-washing machine, and by introducing a modified silicone oil or fluorocarbon compound composite system, a combination of a high-molecular-weight polymer and a low-surface-tension regulator and a biocompatible defoaming agent, the drying performance of the stainless steel surface is remarkably improved, and the foam inhibition effect is optimized; foam generated by protein and an anionic surfactant is efficiently eliminated, meanwhile, environmental protection and sustainability are emphasized, and an efficient, clean and environment-friendly solution is brought to the automatic dish washing machine industry.

The invention discloses a high-activity graphene quantum dot and a preparation method thereof, and relates to the technical field of oilfield chemistry, and the preparation method comprises the following steps: uniformly ground carbon source and nitrogen source are mixed, heated, fully reacted and cooled, uniformly dispersed in deionized water by ultrasonic waves, and then subjected to suction filtration, dialysis and freeze drying to obtain the nitrogen-containing graphene quantum dot. The preparation method comprises the following steps: dispersing nitrogen-containing graphene quantum dots, fatty alcohol-polyoxyethylene ether carboxylic acid and a catalyst in absolute ethyl alcohol, carrying out ultrasonic oscillation for 30 minutes, carrying out reflux reaction, and carrying out reduced-pressure rotary evaporation, thereby obtaining the nitrogen-containing graphene quantum dots. The prepared high-activity graphene quantum dots are small in particle size, high in activity and capable of entering small pores to peel crude oil, so that the recovery efficiency can be remarkably improved, the point injection allocation process is simple, the high-activity graphene quantum dots can be rapidly dispersed into injected water, an additional injection allocation device is not needed, and the construction cost is low.

The invention relates to the field of stripping hanger liquid processing, in particular to environment-friendly stripping hanger liquid and a preparation process thereof. The cleaning agent is prepared from the following raw materials in percentage by weight: 10-15% of sulfuric acid, 3-6% of tetrasodium hydroxyethylidene diphosphate, 4-6% of sodium alcohol ether sulphate, 4-8% of N-methyl-2-pyrrolidone, 4-9% of cyclohexanol, 1-2% of phenolsulfonic acid, 4-7% of sodium hypochlorite, 5-9% of hydrogen peroxide, 3-4% of ferrous sulfate, 1-3% of sodium chloride, 4-8% of a wetting agent, 0.5-0.8% of a stabilizer, 2-3% of a thickening agent, 2-3% of a penetrant and the balance of pure water. Mild chemical components adopted in the formula replace strong nitric acid and strong alkali components in a traditional hanger stripping solution, the corrosivity of the hanger stripping solution is reduced, all the raw materials meet the environment-friendly requirement, and harmful substances cannot be generated in the production and use process, and the environment cannot be polluted.

The invention relates to the technical field of building materials, in particular to all-solid-waste self-excitation concrete as well as a preparation method and application thereof. The all-solid-waste self-excitation concrete is prepared from the following raw material components: recycled coarse aggregate, iron tailing sand, activated coal gangue powder, mineral powder, desulfurized fly ash, an alkali activator, a water reducing agent, a mud inhibitor and water, wherein the mud inhibitor is prepared from the following raw materials: fatty alcohol, polyoxyethylene ether and hexadecylamine. The mud inhibitor can stably adsorb muddy fine powder in the iron tailing sand, and occupies adsorption sites on the surface of the muddy fine powder, so that adsorption of the muddy fine powder on a water reducing agent is avoided, and the flowability of concrete slurry is improved. The raw materials are simple and easy to obtain, the cost is low, and the fluidity and the mechanical property of the concrete are effectively improved through the synergistic effect of all the components. The invention effectively solves the problems of high energy consumption, high cost, poor efficiency and complex treatment process caused by the fact that the used treatment material does not have water solubility in the tailing desilting technology in the prior art.

The invention discloses a novel composite fog dispersal catalyst formula and a preparation method thereof, and belongs to the field of manual intervention weather catalyst manufacturing. The catalyst comprises a hygroscopic agent, which can be calcium chloride, magnesium chloride, sodium chloride, urea, calcium hydroxide or magnesium hydroxide; the carrier agent can be oxidized starch, bentonite, diatomite, a molecular sieve or cellulose; and the dispersing agent can be silicon dioxide, fatty alcohol-polyoxyethylene ether, polyethylene glycol, fatty glyceride or titanium dioxide. The prepared catalyst has good hygroscopicity and dispersibility, and when the catalyst is sown in dense fog, the dense fog can be rapidly dissipated. The raw materials have high water absorption characteristic and dispersity and can accelerate dissipation of warm dense fog and improve visibility, most of the carrier materials are non-toxic and harmless environment-friendly materials, the content of chloride ions and alkali metal ions in the composite catalyst is effectively reduced by controlling the proportion, the corrosion effect caused by various ions is reduced, and the requirement for environmental protection is met.