220 results about "Alkyl trimethyl ammonium chloride" patented technology

The invention relates to a preparation method of a hollow hexagonal boron nitride microsphere, which comprises the following steps: 1, preparing raw materials: the raw materials comprise boric acid, borax, urea, dodecyl trimethyl ammonium chloride and a networking agent, wherein the mass percentage of the boric acid is 3-10 percent, the mass percentage of the borax is 37-45 percent, the mass percentage of the urea is 50-30 percent, the mass percentage of the dodecyl trimethyl ammonium chloride is 2-5 percent, and the mass percentage of the networking agent is 8-10 percent; 2, adding a soft template to prepare hexagonal boron nitride precursor gel; 3, preparing precursor powder; 4, synthesizing hexagonal boron nitride powder; and 5, removing impurities. No pressing is needed to form blocks under high pressure, agglomeration cannot be caused easily, the insulation time is short, and the method is suitable for industrial large-scale production.

The invention discloses a fracture acidizing cleanup additive and a preparation method thereof. The cleanup additive consists of the following components in percentage by weight: (1) 0.01-0.5 percent of fluorine-containing carbon chain Gemini surfactant G1 or G2; (2) 1-35 percent of nonionic surfactant; (3) 5-30 percent of small molecular alcohol; (4) 0-10 percent of alkyl benzyl dimethyl ammonium chloride or alkyl trimethyl ammonium chloride; and (5) the balance of water. The preparation method comprises the following steps of: adding/or not adding the alkyl benzyl dimethyl ammonium chloride or alkyl trimethyl ammonium chloride for the nonionic surfactant; dissolving in mixed solvent of water and the small molecular alcohol; stirring for full dissolving; then adding fluorine-containing carbon chain surfactant; continuously stirring; and cooling to room temperature to prepare the cleanup additive. Through the fracture acidizing cleanup additive, the surface tension can be obviously reduced, water contact angle is increased, capillary force is reduced, and the flow-back efficiency of injected fluid is increased.

The invention discloses a preparation method of a low-mercury compound catalyst for producing vinyl chloride, which relates to the catalyst which contains metallic mercury and nickel, and comprises the steps that: firstly a coaly carbon carrier is soaked in aqua regia, and simultaneously flows back in the aqueous solution of triethylamine, is stirred and pre-treated; then surfactant hexadecyltrimethylammonium chloride and additive nickel chloride are added by the mass ratio that hexadecyltrimethylammonium chloride: HgCl2 is 2.85 to 7.65: 4 to 6.5 and NiCl2: HgC12 is 4:4 to 6.5, and impregnated in a vacuum rotary evaporation way, wherein the prepared HgCl2 accounts for 4 percent to 6.5 percent of the total mass of the catalyst and NiCl2 accounts for 4 percent of the total mass of the catalyst, the hexadecyltrimethylammonium chlorid accounts for 2.85 percent to 7.65 percent of the total mass of the catalyst, and the balance is the low-mercury compound catalyst of C, so that the activity, stability and selectivity of the low-mercury compound catalyst are also significantly improved while the mercury content is reduced.

The invention discloses a preparation method of a spiral titanium dioxide (TiO2) nano wire doped with silver/silver chloride (Ag/AgCl). The preparation method comprises the following steps of 1) dissolving C18-D-Glu in a mixed solution of methanol and water; 2) adding isopropoxy diacetyl titanium acetone into the mixed solution, stirring for 2h at the temperature of 55 DEG C; 3) centrifugally separating the mixed solution to obtain colloid, and freeze-drying the colloid to obtain faint yellow powder; 4) calcinating the faint yellow powder at the temperature of 550 DEG C for 6h to obtain a spiral TiO2 nano wire; 5) mixing the spiral TiO2 nano wire, cetyl trimethylammonium chloride and water and stirring for 1h; 6) adding the silver nitrate (AgNO3) and stirring for 1h, and continuously stirring the mixture for 1h under the radiation of a 8W ultraviolet lamp; 7) centrifugally separating the mixture and drying at the temperature of 80 DEG C for 8h to obtain brown powder; and 8) calcinatinng the brown powder for 6h at the temperature of 300 DEG C to obtain the spiral TiO2 nano wire doped with the Ag/AgCl. Due to the adoption of the preparation method, the quantum yield of the TiO2 is greatly improved, and the process for photocatalytically degrading organic pollutants by utilizing TiO2 can be accelerated. Compared with the ordinary P25, the spiral titanium dioxide (TiO2) nano wire doped with silver/silver chloride (Ag/AgCl) has the advantage that the speed for degrading the pollutant with the same concentration can be improved by ten times; the catalysis efficiency under the visible light is high, and the catalytic degrading speed is high.

A blood cell analyzer diluent and a hemolytic agent, are characterized in that one litre diluent is provided with 12.0-4.0g of sodium chloride, 2.0-10.0g of sodium sulfate, 0.8-0.5g of 1,3,2-methylol urea, 0.2-0.5g of copper sulfite, 3.0-8.0g of EDTA-2Na, 0.2-0.7g of Piperacillin Sodium, a borate buffering liquid toning the ph value to 7.2-7.8, and the balance is water; one litre hemolytic agent is provided with 0.8-5.0g of potassium chloride, 0-60.0g of dodecyl trimethyl ammonium chloride, 14.0-0g of octadecyl trimethyl ammonium bromide, 6.0-10.0ml of isopropanol, carbonate or alcaine buffering liquid toning the ph value to 7.2-7.8, and the balance is water. The inventive reagent can form stable hemoglobin derivatives, and the absorption spectrum curves are similar when lambada is 540nm, lambada is 504nm, which can satisfy the clinical inspection requirement; the reagent does not contain cyanide, azide, and has non-toxicity, which can effective improve working atmosphere of operating staff, and can reduce harm of toxicant to personal health.

The invention relates to a metal quaternary ammonium oxyphosphate dispersoid for developing the oil deposit of thickened oil to improve the exploitation rate of crude oil and application of the metal quaternary ammonium oxyphosphate dispersoid to the exploitation of the thickened oil. By the metal quaternary ammonium oxyphosphate dispersoid, the emulsification, catalytic viscosity reduction and dissolution in exothermic reaction of the thickened oil are realized. According to the technical scheme, the metal quaternary ammonium oxyphosphate dispersoid consists of quaternary ammonium cations and metal oxyphosphate anions. A preparation method comprises the following steps of: stirring an aqueous solution of Na2MoO4 or Na2WO4 or NaVO4 and a Na2HPO4 solution, heating, dripping concentrated hydrochloric acid for reacting, and extracting by using diethyl ether to prepare metal oxyphosphate; and adding alkyl trimethyl ammonium chloride, and stirring to prepare the metal quaternary ammonium oxyphosphate dispersoid. The thickened oil is heated to be melted, and metal quaternary ammonium oxyphosphate and hydrogen peroxide are added with stirring or air is introduced or peroxy-isobutane is added to perform reaction for 3 to 8 hours, so that the viscosity reduction of the thickened oil is realized under the condition of catalytic oxidation. The metal quaternary ammonium oxyphosphate has acatalytic effect, so that the thickened oil is subjected to the exothermic catalytic oxidation reaction under the action of an oxidant to reduce the viscosity and improve the exploitation rate.

The invention relates to a method for preparing a nano composite high-absorptivity chrome tanning auxiliary agent by combining polycarboxylic acid copolymer with montmorillonite. In the traditional chrome tanning method, the absorptivity is not high, and serious pollution is caused by direct discharge of a great deal of chromium-containing waste liquid. The method comprises the steps of: dispersing 2-10 g of nano montmorillonite with 150-400 g of distilled water, adding 0.5-1.5 g of cetyl trimethyl ammonium chloride, reacting at the temperature of 60-95 DEG C for 4-6 hours and ultrasonically treating for 0.5-2 hours to obtain modified montmorillonite; and dispersing 2-10 g of modified montmorillonite with 150-300 g of water for 2-5 hours, adding 15-30 g of methacrylic acid, reacting for 0.5-2 hours, heating in water bath, keeping dropwise adding methacrylic acid and an initiator at 50-80 DEG C for 30 minutes, carrying out an isothermal reaction for 1-3 hours, cooling and discharging to obtain a final product. The method has the advantages that: a pickling working procedure in the traditional chrome tanning process is omitted, the absorptivity to the chrome tanning waste liquid is improved, and the final product is a environment-friendly nano composite material.

The invention discloses a high-specific-surface-area mesoporous methylsilsesquioxane aerogel block, wherein the high-specific-surface-area mesoporous methylsilsesquioxane aerogel block is a compound taking methyltrimethoxysilane as a precursor, a hydrochloric acid solution as a solvent and a catalyst, and hexadecyl trimethyl ammonium chloride as a dispersing agent; a preparation method comprises the following steps: adding the dispersing agent into the hydrochloric acid solution, stirring to dissolve, then adding the precursor methyltrimethoxysilane, magnetically stirring under the sealed connection, then adding a gel accelerator, continuing to stir, ageing in an oven after finishing stirring; conducting solvent replacement on a gel through isopropanol for at least twice to obtain a solvent replaced gel; modifying the surface of the solvent replaced gel to obtain a surface modified gel; drying at the normal temperature to obtain the integrated high-specific-surface-area mesoporous methylsilsesquioxane aerogel block. Through the above mode, the high-purity high-specific-surface-area mesoporous methylsilsesquioxane aerogel block with a uniform mesoporous structure is prepared.

Camellia seed shampoo soap comprises the following ingredients in parts by mass: 1-4 parts of camellia oil, 3-6 parts of a camellia seed extract, 1.5-4 parts of tea polyphenol, 9-11 parts of beeswax, 4-7 parts of a radix sophorae flavescentis aqueous extract, 0.3-0.8 part of climbazole, and 0.4-0.6 part of dodecyl trimethyl ammonium chloride or hexadecyl trimethyl ammonium chloride. The camellia seed shampoo soap is rich in such antioxidative ingredients as tea saponin, squalene and vitamin E, adopts a plant formula, and has efficacies on hair nourishing, so as to brighten hair, relieve itching, clean hair, kill bacteria, inhibit dandruff, improve nutrition to hair follicles, and protect hair from damage.

The invention belongs to the fields of preparation of functional catalytic materials and fuel purification and relates to amphiphilic cobalt-containing sandwich type heteropolyacid and an application of heteropolyacid in catalytic desulfurization. The molecular formula of the catalyst is [C18H37N(CH3)3]10[Co4(H2O)2(PW9O34)2], and amphiphilic cobalt-containing sandwich type heteropolyacid is obtained through self-assembly of cobalt-containing sandwich type heteropolyacid K10[Co4(H2O)2(PW9O34)2] and a cationic surfactant, namely, octadecyl trimethyl ammonium chloride through ion exchange under electrostatic force. The catalyst is mixed with hydrogen peroxide and an ionic liquid [Bmim]PF6 to form an extraction, catalytic oxidation and desulfurizing system, and the purpose of super-deep desulfurization can be achieved at normal temperature. The preparation method of the catalyst is simple, the desulfurization reaction condition is mild, the catalytic system can be at least used 6 times without remarkable reduction of catalytic efficiency, and the preparation method is an efficient, economical and environment-friendly production process.

The invention discloses an exfoliating condensation and a preparation method thereof. The method comprises the following steps: adding deionized water into a reaction kettle; adding Carbomer; starting the mixing once the wetting is completed until no particle can be seen; adding propylene glycol, glycerin and allantoin; heating to 85 DEG C; mixing under condition of heat preservation until no particle can be seen; adding tetradecyl trimethyl ammonium chloride and polyquat-10, and mixing; adding natural scleroglucan, methylparaben, methyl chloride different thiazole moiety and perfumery compound, and mixing unifornly; adding tetradecyl trimethyl ammonium chloride and polyquat-10, and mixing until no particle can be seen, so that exfoliating condensation is obtained. The exfoliating condensation and the preparation method, both provided by the invention, can improve the phenomenon in the prior art that the manufacturing and storing processes are unstable, can effectively soften and remove aged cuticle, and can whiten and soften the skin.

The invention discloses a mesoporous silicon dioxide nanoparticle with small particle size and large pore diameter and a preparation method thereof. The preparation method comprises the following steps of using a surfactant CATC (aetyl trimethylammonium chloride) and a TMB (1,3,5-trimethylbenzene) co-solvent as templates, using TEOS (tetraethoxysilane) and DMDMS (dimethyl diethoxysilane) as silicon sources, and reacting by a one-step method under certain conditions, so as to obtain the mesoporous silicon dioxide nanoparticle. The prepared mesoporous silicon dioxide nanoparticle has the advantages that the particle size is smaller, the pore diameter is larger, the size is uniform, the specific surface area is large, and the like; the important application prospect is realized in the fieldsof biomedicine, chemical engineering, functional materials and the like.

The invention relates to a colored stain cleanser for textiles, which contains the following components in parts by mass: 3-8 parts of dodecyl trimethyl ammonium chloride, 2-7 parts of cetyl trimethyl ammonium bromide, 7-15 parts of fatty alcohol polyoxyethylene ether, 40-60 parts of petroleum emulsion, 70-90 parts of water, 30-50 parts of anhydrous ethanol, 7-15 parts of benzyl alcohol, 0.6-1.5 parts of carboxymethyl cellulose and 0.3-1.2 parts of 4-chloro-3,5-dimethyl phenol. The colored stain cleanser for textiles has favorable removal effect on colored stains, and especially the removal rate for ball pen oil and ink stains is up to 99%. Besides, the cleanser can kill bacteria while removing the colored stains, and does not damage the textiles.

The invention discloses a method for synthesizing a dodecahedral PtCu nanometer frame material through a template-free solvothermal method, and belongs to the technical field of synthesis of the dodecahedral nanometer frame material. The invention has the technical scheme that the method comprises the steps of adding a regulation molecule i.e. hexadecyl trimethyl ammonium chloride into a solvent i.e. oleylamine to be uniformly mixed and stirred, and carrying out ultrasonic treatment; after full dissolving, adding metal precursors i.e. bisplatinum and copper chloride CuCl2.2H2O as well as a reducing agent i.e. allantoin, adding a mixed solution into a reaction kettle, fully reacting at 180 DEG C for 10 h, and discharging; and washing with a mixed solution of ethyl alcohol and cyclohexane multiple times, and drying to obtain the dodecahedral PtCu nanometer frame material. When the PtCu dodecahedral nanometer frame material prepared through the invention is applied to acid and alkaline media, the catalytic activity on hydrogen evolution reaction (HER) can be remarkably improved.

The invention discloses a metal cleaning agent and a preparation method thereof and belongs to the field of chemical engineering. The metal cleaning agent comprises the following components, by weight, 12-15.6% of alkyltrimethylammonium chloride, 1.8-3.2% of lauroyl diethanolamide, 4-8% of sodium polyoxyethylene ether sulfate, 1-5% of fatty amine polyoxyethylene ether, 2-4% of lauryl sodium sulfate, 7-10% of dodecyl dimethyl betaine, 1.1-1.9% of sodium oleate, 0.1-1.5% of a preservative, 6-10% of triethanolamine, 1-3% of sodium gluconate, 5-12% of glycerol and the balanced being deionized water. The metal cleaning agent is prepared by compounding various surfactants, has excellent cleaning performance at room temperature, is phosphorus-free and is green and environment-friendly.

The invention relates to a method for improving the dispersion efficiency of cellulase on organic pigments, and belongs to the technical field of textile dye printing. The method uses the following processes of adding cellulase with the mass concentration being 1g/L in water; then, adding hexadecyl trimethyl ammonium chloride with the mass concentration being 0.1g/L and octaphenyl polyoxyethyienewith the ethylene oxide number being 15; performing treatment by a dispersion machine being 10000r/min for 2min; adding organic pigments with the mass concentration being 20g/L; and performing ultrasonic treatment for 15 to 50min. Cationic surface active agents of hexadecyl trimethyl ammonium chloride and nonionic surfactants of octaphenyl polyoxyethyiene are used in a way of being cooperated withcellulase; the time required for dispersing the pigment to the target granularity can be obviously reduced.

The invention discloses a composite nano-silver antiviral agent as well as a preparation method and application thereof, and belongs to the technical field of health protection. The problems that in the prior art that a nano-silver antiviral agent is low in stability and timeliness; and existing cloth is poor in antiviral property are solved. The composite nano-silver antiviral agent is prepared from the following raw materials: an ester-based quaternary ammonium salt cationic surfactant, dodecyl trimethyl ammonium chloride, nano-silver sol, polyethylene glycol and water. The preparation method of the composite nano-silver antiviral agent comprises the following steps: weighing the raw materials for preparing the composite nano-silver antiviral agent according to the mass ratio; equally dividing water into two parts; preparing a first mother solution; preparing a second mother solution; and mixing and stirring the first mother liquor and the second mother liquor to obtain the compositenano-silver antiviral agent. The composite nano-silver antiviral agent has long-acting and stable bactericidal and antiviral effects, can improve the antiviral property of non-woven fabrics when applied to the non-woven fabrics, and is harmless to human bodies, safe and reliable.

Quaternary ammonium salts, and compositions including these salts, are disclosed. Also disclosed are methods for protecting plants and crops from microbial and other pests by administering the quaternary ammonium salts, or compositions including the salts, to a plant in need of such treatment. The main component of the quaternary ammonium salts is alkyltrimethylammonium chloride or dimethyldialkylammonium chloride, where alkyl is derived from soya, coconut, cottonseed, tallow, or hogfat fatty acids or the individual ammonium salts isolated therefrom.