147 results about "Acetic acid butyl ester" patented technology

The invention discloses a hydrophobic and oleophyllic bi-component acrylic resin and a preparation method and application thereof. The hydrophobic and oleophyllic bi-component acrylic resin comprises an A component and a B component, wherein the A component comprises 10 to 15 weight percent of hard monomer, 15 to 25 weight percent of higher alkyl methacrylates, 5 to 10 weight percent of fluorinated acrylic ester, 8 to 15 weight percent of cross linking monomer, 1 to 3 weigh percent of initiator, 10 to 25 weight percent of butyl acetate and 20 to 32 weight percent of dimethylbenzene; and the B component is an isocyanate curing agent of which the NCO content accounts for 10 to 23 percent of the total weight of the curing agent. The preparation method comprises a step of evenly mixing the A component with the B component which accounts for 14 to 32 weight percent of the A component to prepare the hydrophobic and oleophyllic bi-component acrylic resin. The bi-component acrylic resin has hydrophobic and oleophyllic performance and can serve as a coating for porous materials such as stainless steel metal meshes and filter paper to play a role in separating oil from water.

The invention discloses a diesel oil pour point depressant composition and its preparation method. The diesel oil pour point depressant composition, i.e. a diesel oil pour point depressant composition formed by mixing acetic ester organic solvents with a pour point depressant, comprises the following raw materials by mass percent: 0-20% of methyl acetate, 0-20% of ethyl acetate, 0-10% of propyl acetate, 0-30% of butyl acetate, and 20-80% of the pour point depressant. The preparation method consists of: mixing all the raw materials and then conducting stirring in water bath at a constant temperature of 50DEG C for 20min, and controlling the rotation speed at 150r/min, thus obtaining the diesel oil pour point depressant composition. Adding of the obtained diesel oil pour point depressant composition into commercially available 0# diesel oil can make the cold filter plugging point of the diesel oil reduced by 5-11DEG C and the condensation point reduced by 6-10DEG C. The diesel oil pour point depressant composition provided in the invention enhances the dispersion effect of pour point depressants on wax crystals, and improves the low temperature fluidity of diesel oil.

The invention discloses a method for extraction dephenolization of high-concentration chemical wastewater containing phenol ammonia coals. According to the method, the high-concentration chemical wastewater containing the phenol ammonia coals is in countercurrent contact with butyl acetate in an extraction tower, an extraction phase is obtained at the top of the tower, and an extraction residual phase is obtained at the bottom of the tower; the extraction phase is subjected to rectification to recover an extracting agent and a product of crude phenol, the extracting agent is recycled, and the crude phenol is sold or refined. Compared with an extraction technology related in the prior art, the recovery energy consumption of butyl acetate is lower, the process flow of the method disclosed by the invention is simple, and the extraction rate of phenol is high. By using the extracting agent in the method, the burden of follow-up biochemical treatment of wastewater can be reduced more effectively, the cost can be saved, and the recycling and up-to-standard release of wastewater are ensured.

A ultraviolet curing coating and its production are disclosed. The coating consists of filming substance, diluent and light initiating agent or assistants. The diluent is a organic solvent which comprises one of several from toluene, acetic ether, acetate butyrin, isobutyl acetate, propyl acetate, alcohol, n-butyl alcohol, ethylene ketone, dimethyl benzene, methyl isobutyl ketone, acetone, methyl ethyl ketone, ethanediol butyl ester and propylene butyl ester. It costs low, has better abrasive-resistance, hardness and adhesion.

The invention discloses a preparation method of mezlocillin sodium solvent crystal, comprising the steps of (1) dissolving crude mezlocillin acid in a reaction solvent A to obtain solution A; (2) dissolving organic salt forming agent in a reaction solvent B to obtain solution B; (3) after adding the solution A into the solution B for sufficient reaction, slowly adding a poor solvent, separating out sodium solvent crystal, filtering, obtain filtrate and filter mass, drying the filter mass; the organic salt forming agent is sodium iso-octoate, ethyl acetoacetate or 2-ethyl sodium hexanoate; the reaction solvent A or B is independently acetone or ethyl acetate; the poor solvent is methanol, ethanol, propanol, isopropanol, aether, isopropyl ether, tetrahydrofuran, ethyl formate orbutyl acetate. The method is simple to operate, and has high stability, large yield, excellent product quality and few impurity contents; the reaction solvents and crystallizing solvent can be recycled, thus having low production cost, high reaction yield, excellent implementing value, and social and economic benefits.

The invention discloses a nanometer self-healing paint and a preparation method thereof, and belongs to the technical field of paint application. The invention solves the problems of weak scratch resistance and failure in self-healing of the wood lacquer surface in the prior art. The nanometer self-healing paint is composed of a component A and a component B. the component A consists of the following raw materials by weight: synthetic fatty acid resin / acrylic resin or polyaspartate polyurea, straight chain polyester resin containing hydroxyl, nanometer silicon dioxide, a dispersing agent, a defoaming agent, a leveling agent, a drying agent and a solvent; and the component B consists of the following raw materials by weight: hexamethylene diisocyanate, and acetic acid butyl ester; the component A and the component B are in the weight ratio of 1:0.8 to 1.2. The self-healing paint of the invention is not only environment-friendly but also has self-healing effect after scratching.

The invention discloses a thin-layer chromatography identification method of carbon traditional Chinese medicine formula granules. The method comprises the steps that 1, sample powder is taken and dissolved through water, hydrochloric acid is added, heating is conducted for hydrolysis, filtration is conducted, filtrate is extracted through ethyl acetate or ethyl ether, extract liquor is evaporated to dryness, and residues are dissolved through methyl alcohol to serve as a test sample solution; 2, reference medicinal materials are taken, decocted through water and filtered, filtrate is concentrated, and then a reference medicinal material solution is prepared through the method for preparing a test sample; 3, the test sample solution and the reference medicinal material solution are sucked and dripped on a same silica gel GF254 thin-layer plate, and developing is conducted by taking a mixture of methylbenzene, one or more of ethyl formate or ethyl acetate or butyl acetate and formic acid as developing solvents according to the volume ratio of 2-8 to 2-8 to 0.1-1; 4, the thin-layer plate is viewed under a 254 nm ultraviolet lamp, and principal spots with the same color are showed on the positions, corresponding to the chromatography of the reference medicinal materials, in the test sample chromatography. The method is rapid, comprehensive and high in specificity, and the requirements of carbonized herbs and the carbonizing drug characteristic of the formula granules thereof can be embodied.

The invention relates to a civil liquid fuel and a preparation method thereof. The civil liquid fuel is prepared from the following raw materials by weight percent: 10%-35% of seawater or treated wastewater, 65%-90% of methanol, 0.2%-1% of xylene, 0.05%-0.1% of cyclohexane, 0.05%-0.5% of butyl acetate, 0.2%-1% of ammonium nitrate, 0.2%-1% of hydrogen peroxide with the mass concentration of 27% and 0.3%-1.5% of ethanol. The civil liquid fuel has simple preparation method, accessible raw materials, stable performance and safe transportation and use, have high heat value and can be completely burnt, do not generate pressure and do not explode; and the civil liquid fuel can be extinguished with water and be characterized by cleanliness, less emissions of production, environmental protection, safety and low cost. The invention can replace diesel and liquefied natural gas (LNG) and be suitable to be used in the diesel oil furnaces, boilers, liquefied gas furnaces and the like of various hotels, schools, factories, institutions and the like.

The invention discloses a method for processing sewage with high-concentration phenol and ammonia. According to the method, ammonia, phenol and acid gases in sewage are eliminated, the processing effect is good, efficiency is achieved, and high performance cost ratio is achieved. Butyl acetate is used as extraction agents, the recovery rate is high, energy is saved, efficiency is high, and the performance cost ratio is high. Phenol concentration of the extracted sewage can be reduced to be smaller than the phenol concentration required by biochemical treatment water, separation is more thorough through a double-tower structure, and the defect of not thorough separation through a single tower is reduced, extraction in the counter-current extraction method is more efficient, separation is more thorough, and the method is worthy of popularization and application.

The invention which belongs to the technical field of paints especially relates to a vacuum sputtering UV-curable finish coat. The finish coat comprises 20 to 25 wt% of aromatic acid methacrylic acid half-ester, 10 to 20 wt% of butyl acetate, 15 to 20 ethyl acetate, 15 to 20 wt% of six functional aliphatic polyurethane acrylates, 1.5 to 10 wt% of three functional aliphatic polyurethane acrylates, 5 to 8 wt% of 1,6-hexanol diacrylate, 2 to 3 wt% of 1-hydroxy-cyclohexyl benzophenone, 1 to 2 wt% of 2-hydroxy-2-methyl-1-phenyl-1-acetone, and 0.5 to 3 wt% of a levelling agent. The finish coat has the advantages of rapid curing, good wear resistance, stain resistance and hard object scratching resistance, high glossiness, low volatility, and environmental protection and no pollution.

The present invention relates to compounds for an under coat (A), a mid coat (B) and a top coat (C) of the imitation pearl, in which the compounds for the under and mid coats (A) and (B) of the imitation pearl are prepared by dissolving pyroxylin into a mixed solution of acetone and ethylacetate and another mixed solution of butylacetate and amylacetate, and adding a pigment to the pyroxylin solution, and the compound for the top coat (C) of the imitation pearl is prepared by dissolving pyroxylin into a mixed solution of ethylacetate and butylacetate and adding a pigment to the pyroxylin solution.

The invention discloses a castor oil base containing antibacterial UV coating. The castor oil base containing antibacterial UV coating is prepared from, by mass, 32-35 parts of castor oil base UV solidification urethane acrylate, 16-21 parts of organosilicone modification urethane acrylate, 8-10 parts of trimethylolpropane triacrylate, 5-6 parts of tripropylene glycol diacrylate, 15-16 parts of ethyl acetate, 14-15 parts of butyl acetate, 0.4-0.6 part of a polyether modified polysiloxane flatting agent, 2.5-3 parts of photoinitiator and 0.95-1 part of a nano-silver antibacterial auxiliary. The coating formed through a reaction between the polyether modified polysiloxane flatting agent and a mixed solution composed of the castor oil base UV solidification urethane acrylate and the organosilicone modification urethane acrylate in a cooperated mode is good in flatting effect, resistant to water and low temperature and more excellent in electrical insulating performance and adhesive force and is a coating which is good in comprehensive performance, and few volatile organic substances is emitted.

Low-cost automobile repairing paint is prepared by the following raw materials in part by weight: 13-18 parts of melamine formaldehyde resin, 7-9 parts of polyisobutene, 6-7 parts of acetic acid isopropyl ester, 7-9 parts of dichloromethane, 9-14 parts of barium metaborate, 1-4 parts of sodium polyacrylate, 0.5-2 parts of antirust agents, 8-13 parts of hydroxyethyl acrylate, 6-8 parts of polyethylene glycol, 1.5-4 parts of butyl acetate, 7-10 parts of sorbitan stearate, 8-12 parts of medium-oil linseed alkyd resin, 1.2-4 parts of carboxymethyl cellulose, 8-14 parts of silicon dioxide with 75 meshes and 14-20 parts of high-level fatty alcohol. The low-cost automobile repairing paint has the advantages that the cost is low, the adhesion of the paint is high, and the acid-base resistance property of the paint can be improved well.

The invention discloses an emulsion type cleaning agent for a printed circuit board. The emulsion type cleaning agent is prepared from the following raw materials in parts by weight: 20 to 24 parts of butyl acetate, 30 to 34 parts of ethanol, 10 to 12 parts of n-octane, 9 to 10 parts of propylene glycol butyl ether, 4 to 5 parts of dodecyl dimethyl benzyl chloride, 4 to 5 parts of sodium fatty alcohol polyoxyethylene ether sulphate, 2 to 3 parts of citric acid, 1 to 2 parts of sodium xylene sulfonate, 3 to 7 parts of cyclohexanone, 2 to 3 parts of methyl pyrrolidone, 4 to 5 parts of auxiliaries and 100 to 120 parts of de-ionized water. According to the cleaning agent, a plurality of surfactants such as an anionic surfactant, a nonionic surfactant and a cationic surfactant are used, so that an organic solvent and water form emulsion, and the cleaning agent has high dissolution capability for rosin, welding compounds and organic compounds, is high in cleaning speed, low in cost, harmless to an ozone layer and low in toxicity and human skin irritation, and has a pH value of 7 to 8; the auxiliaries can form a protective film on the surface of the printed circuit board to isolate air and prevent corrosion, oxidation and short-circuit, so that convenience is brought to the next manufacturing process.

The invention provides a photo-initiated cross-linked polyvinyl alcohol drug-loaded embolism microsphere and a preparation method thereof, and belongs to the technical field of medical materials. Comprising the following steps: S1, reacting polyvinyl alcohol through an acid catalysis method or a base catalysis method to obtain a photo-crosslinkable polyvinyl alcohol intermediate; s2, dissolving the photo-crosslinkable polyvinyl alcohol intermediate, 2-acrylamide-2-methyl propanesulfonic acid sodium salt and a water-soluble photoinitiator in water under a dark condition, adding the solution into a mixed solution of butyl acetate and cellulose acetate butyrate, stirring to form a suspension, initiating a cross-linking reaction under irradiation of a light source, washing after the reaction is finished, and drying to obtain the photocrosslinkable polyvinyl alcohol. The photo-initiated cross-linked polyvinyl alcohol drug-loaded embolism microspheres are obtained. According to the invention, the polymerization reaction time and energy consumption can be reduced, the reaction can be completed within only 5 minutes to 2 hours, the reaction can be carried out at room temperature, the environment-friendly photoinitiator is used, and the method is more suitable for large-scale production.

The invention discloses a method for determining butyl acetate and cyclohexanone in water and soil, which comprises the following steps: 1, pretreating a sample to obtain a sample; 2, purging and enriching butyl acetate and cyclohexanone in the sample in a trapping tube by using high-purity helium; step 3, heating the trapping tube to 140 DEG C, carrying out back flushing by using high-purity helium, enabling the thermally desorbed components to enter gas chromatography, separating, and detecting by using a mass spectrometer; step 4, quantifying by comparing with a standard spectrogram of a to-be-detected target object, determining the retention time qualitatively and quantifying by an external standard method; according to the invention, the determination process is simple, and the determination accuracy and precision are high; the lowest detectable concentration is low, and the application range is wide.

Disclosed is alkyd paint for a door. The alkyd paint comprises the following components: 30-50 parts of an alkyd resin, 15-20 parts of nitrocellulose, 3-6 parts of benzoic acid, 2-4 parts of calcium naphthenate, 3-4 parts of lithopone, 5-8 parts of bentonite, 2-5 parts of dioctyl stearate, 50-70 parts of ethanol, 15-20 parts of xylene, 4-5 parts of butyl acetate, 10-15 parts of 200# solvent naphtha, and 2-8 parts of butanol. A preparation method of the alkyd paint is simple in process. The product has strong adhesive force and aging resistance.

The invention discloses a preparation method of a chenodeoxycholic acid butyl acetate extracting solution. The method comprises the following steps: dissolving bile paste in a sodium hydroxide aqueoussolution, adding butyl acetate and hydrogen peroxide, and stirring to obtain a decolorizing solution; taking the decolorized solution, adjusting the pH value to 5.90-6.10, standing for liquid separation, and taking an organic phase to obtain a chenodeoxycholic acid extracting liquid; adding a sodium hydroxide aqueous solution into the chenodeoxycholic acid extracting solution, standing for liquidseparation, and taking an organic layer to obtain an impurity washing solution; and adding a sodium hydroxide aqueous solution into the impurity washing solution, standing for liquid separation, andtaking an organic layer to obtain a chenodeoxycholic acid butyl acetate extracting solution. According to the invention, the purity of the chenodeoxycholic acid tert-butyl ammonium salt obtained through the preparation method is high, and chenodeoxycholic acid is further prepared through the chenodeoxycholic acid tert-butyl ammonium salt with the high purity, so that the purity of the product canbe improved, the income of enterprises can be increased, and the preparation method is simple, easy to operate and suitable for large-scale production of the enterprises.

The invention relates to a traceless glass detergent which is prepared from the following raw materials in parts by weight: 6-11 parts of surfactant, 6-9 parts of silica sol, 3-9 parts of dodecyl dimethyl betaine, 6-8 parts of alkyd resin, 5-9 parts of butyl acetate, 7-9 parts of nonylphenol polyethenoxy ether, 5-8 parts of methyl cellulose, 4-9 parts of sodium polyacrylate, 5-7 parts of sodium benzoate, 5-10 parts of polyaluminum chloride, 5-10 parts of sulfamic acid, 6-11 parts of sodium polyacrylate, 3-6 parts of dodecylbenzene sulfonic acid, 2-5 parts of essence and 30 parts of deionized water. The traceless glass detergent has the advantages of favorable grease removal effect, high cleaning speed, high volatilization speed and no trace, and can not damage the glass.

The invention provides an anticorrosive coating for household appliances and a preparation method thereof. The anticorrosive coating comprises the following components in parts by mass: 10-18 parts of dimethylamino ethyl methacrylate, 6-14 parts of hydroxyethyl methylacrylate, 30-42 parts of butyl acrylate, 15-25 parts of butyl acetate, 12-18 parts of butadiene, 60-74 parts of isopropanol, 15-25 parts of cyclohexanone, 0.8-1.6 parts of n-pentane, 5-9 parts of dihydroxy methyl propionate, 3-7 parts of zircon power, 0.5-1 part of electrolytic copper powder and 15-25 parts of deionized water. The coating provided by the invention has a good protecting function for the household appliances made of metal products and has the advantages of excellent anticorrosive and fireproof functions, smoothness and flatness in appearance as well as good weather resistance and antistatic property.

The invention discloses a purification method of ferric trichloride, which comprises the following steps: oxidizing iron-containing chloride into ferric trichloride, adding industrial hydrochloric acid and butyl acetate, extracting, standing for layering, taking an organic phase, adding a stripping agent, carrying out reverse extraction to obtain ferric trichloride with ultralow impurity content, evaporating, concentrating, and removing organic matters to obtain high-purity ferric trichloride. Recyclable organic phase. The purification process is not limited by the purity of production raw materials, is simple to operate and low in equipment investment, and does not use toxic extractant. The ferric trichloride product produced by the process disclosed by the invention can be applied to the fields of drinking water treatment, medical intermediates, analytical testing, precision etching and the like.

Oil paint resistant to weather comprises, by weight, 12-22 parts of fluororesin, 7-11 parts of tripropylene glycol diacrylate, 1-4 parts of isocyanate, 8-13 parts of butyl acetate, 3-4 parts of ehylene glycol diglycidyl ether, 6-10 parts of precipitated barium sulphate, 3-6 parts of diacetone-acryloamide, 10-17 parts of acrylic resin, 6-8 parts of catalyst, 7-14 parts stearic acid, 2-4 parts of rust, 15-20 parts of plant color paste, 4-6 parts of silica solution, 10-15 parts of carbon monofluoride, 8-10 parts of tetramethyl thiocarbamide, 4-7 parts of adhesion promoter and 2-4 parts of amber. The oil paint resistant to weather has the advantages of high abrasive resistance, high fracture resistance, high smoothness, high weather resistance, high produced product quality, wide using range and no pollution.

Disclosed in the present invention is a preparation method of azoxystrobin having a structure as shown by formula (1), the method comprising: a) performing an etherification reaction by reacting the compound having a structure shown by formula (2) with 2-cyanophenol and/or a salt thereof under the catalysis of an azabicyclo tertiary amine compound and/or a salt thereof as the catalyst in a butyl acetate medium to obtain a butyl acetate solution containing azoxystrobin; and b) cooling the butyl acetate solution containing azoxystrobin to precipitate Azoxystrobin having a structure as shown by formula (1) from the butyl acetate solution. Using the method provided by the present invention to prepare azoxystrobin can significantly improve the yield of azoxystrobin, and can obtain azoxystrobin products having high purity.