443 results about "Diethyl phthalate" patented technology

The invention discloses a flotation decarburization and direct and reverse flotation process for silicon-calcium mixed collophanite containing organic carbon. The mass percentage of the organic carbon in the silicon-calcium mixed collophanite ranges from 1% to 10%. The flotation process includes sequentially performing flotation decarburization, direct flotation desiliconization and reverse flotation magnesium removal. A flotation decarburization technology includes adding water into the silicon-calcium mixed collophanite containing the organic carbon and crushing and grinding the silicon-calcium mixed collophanite containing the organic carbon to obtain ore pulp with the mass concentration ranging from 20% to 40%; adding collecting agents and foaming agents into the ore pulp and mixing the ore pulp, the collecting agents and the foaming agents with one another; stirring and regulating the pulp and performing flotation on the ore pulp by the aid of a flotation machine to obtain foam products which are tailings containing carbon; implementing a direct flotation desiliconization technology on products in tanks; then sequentially implementing direct and reverse flotation on the products. The flotation decarburization and direct and reverse flotation process has the advantages that organic carbon gangue can be eliminated by means of flotation implemented by the aid of the anionic fatty acid collecting agents and the diethyl phthalate foaming agents, accordingly the content of the organic carbon in the ore pulp can be reduced, consumption of the collecting agents can be decreased, the high quantity of direct flotation foam can be reduced, and the flotation selectivity can be improved.

The invention discloses a methanol diesel fuel complex additive and a preparation method thereof. The complex additive is prepared from the following raw materials in parts by volume: 1-4 parts of diethyl phthalate, 1-8 parts of n-butylamine, 1-9 parts of isooctanol, 1-6 parts of cyclohexanone, 13-42 parts of lauryl methacrylate, 7-30 parts of mixed fatty glyceride, 1-5 parts of phenyl propargyl ether, 1-8 parts of dihexadecyl dimethyl ammonium chloride, 2-12 parts of ethyl formate, 2-14 parts of isooctyl nitrate and 1-6 parts of polyoxyethylene hexadeeylalkyl ether selies. The methanol diesel fuel complex additive can enable methanol diesel fuel to be evenly mixed and to be stably stored for more than 6 months, which effectively improves the fire behaviour of the methanol diesel fuel and inhibits the volatilization when the methanol content is higher; moreover, the production process is simple and the use is convenient, thereby being beneficial to the popularization and application of the methanol diesel fuel.

The present invention discloses a wallpaper and a preparation method thereof, wherein the wallpaper comprises 40-80 parts of paper pulp, 10-15 parts of tree bark powder, 1-2 parts of borosilicate, 0.4-0.8 part of nanometer powder, 2-4 parts of calcium hypochlorite, 4-7 parts of polycarbonate, 3-6 parts of polyethylene terephthalic acid ester, 3-5 parts of 2,6-dibenzylidene cyclohexanone, 2-4 parts of carbon fibers, 3-6 parts of diethyl phthalate, 2-5 parts of glass fiber filament, 1-3 parts of carboxymethyl cellulose, 2-4 parts of polyacrylic acid fibers, 0.4-1 part of an anti-forming agent, 8-10 parts of a film forming agent, and 1-3 parts of a dispersant. The wallpaper has characteristics of high reflective property, visual angle balance improving and gain increasing so as to provide high projection effect, good image saturation degree and high definition, and further has characteristics of green environmental protection, wear resistance and good stability.

The invention provides an erythromycin enteric-coated capsule and the preparation method. The invention is characterized in that: the component ratio of the enteric-coated liquid of the enteric-pellets capsules contained in the enteric-coated capsules counted by weight percentage is that: polyacrylic resin: II: 1, diethyl phthalate: 0.07 to 0.1, Tween-80:0.08 to 0.12, castor oil: 0.08 to 0.12, ethanol whose concentration is bigger than or equal to 95%: 12 to 14; all are counted as weight percentage. The invention conquers defects in the prior art, elevates the product quality, keeps the releasing degree of the product stable and guarantees the quality as well as healing effect of the product during the period of validity, and also the preparation is simple and convenient, the work efficiency is high and the quality of the products is quite well.

The invention discloses a formula for preparing fluorocopolymer porous membranes. The formula comprises the following ingredients: 15-50wt% of ethylene-chlorotrifluoroethylene copolymer, 30-85wt% of diluent and 0-20wt% of composite pore-forming agent, wherein the sum of the ingredients is 100wt%; the diluent is any one or a mixture of several of diisooctyl adipate or diisooctyl adipate and dibutyl phthalate, diethyl phthalate and dioctyl phthalate in any ratio. The invention further discloses a method for preparing fluorocopolymer flat porous membranes and fluorocopolymer hollow fiber porous membranes according to the formula. According to the invention, the membrane preparing formula can reduce the membrane preparing temperature to below 200 DEG C; the process is simple; the finally prepared membranes is good in mechanical properties, high in porosity and good in permeability, and can be used for membrane separation under severe conditions of acid-alkali media, organic solvents and the like.

The invention discloses a pineapple flavor essence. The raw materials of the pineapple flavor essence comprise 300.0 weight permillage of allyl caproate, 200.0 weight permillage of cyclohexyl allyl propionate, 30.0 weight permillage of ethyl acetate, 50.0 weight permillage of cyclohexyl allyl acetate, 30.0 weight permillage of geranyl hexanoate, 10.0 weight permillage of benzyl propionate, 5.0 weight permillage of petit grain oil, 2.0 weight permillage of acetic leaf alcohol ester, 10.0 weight permillage of vanillic aldehyde, 3.5 weight permillage of cinnamyl acetate, 100.0 weight permillage of ethyl butyrate, 20.0 weight permillage of ethyl oenanthate, 30.0 weight permillage of pentyl acetate, 30.0 weight permillage of cyclohexyl allyl butyrate,10.0 weight permillage of geranyl butyrate, 10.0 weight permillage of linalool, 10.0 weight permillage of citral dimethyl acetal, 0.5 weight permillage of dimethyl hydroxyl furanone, and 150.0 weight permillage of diethyl phthalate. The pineapple flavor essence of the invention is fit for perfuming products such as grease, emulsion, shampoo, and the like, and has the advantages of pure flavor, strong endurance, less dosage, and the like.

The invention provides an erythromycin enteric-coated pellet which is suitable to be prepared by a boiling coating granulator, wherein the enteric-coated coating liquid comprises polyacrylic resin II, diethyl phthalate, tween-80, and an ethanol solution. In addition, the invention also provides a process and an intermediate material for preparing the erythromycin enteric-coated pellet, such as enteric-coated coating liquid and the like.

Method for preparing glycidyl methacrylate which comprises two steps, (1) reacting methacrylic acid and caustic alkali in water dissolvent, obtaining the alkali metal salt of methacrylic acid, (2) preparing crude product of glycidyl methacrylate from the alkali metal salt of methacrylic acid and epichlorohydrin at the presence of inhibitor and catalyst, filtering, charging diethyl phthalate, vacuum distilling to obtain the refined product.

The invention relates to a high-tensile strength sponge and a preparation method thereof. In order to solve the problems that an existing market sponge has low tensile strength and cannot satisfy special requirements, the high-tensile strength sponge disclosed by the invention is prepared from a component A and a component B, wherein the component A includes the following materials in parts by weight: 67-90 parts of polyether polyol DEP (Diethyl Phthalate)-560D, 5-30 parts of polymer polyol POP(Polyolefin Plastomer) 45, 3-5 parts of tensile agent MU100, 0.01-0.03 part of light stabilizer, 2.5-3.3 parts of water, 0.8-1.2 parts of foam stabilizer AK6689, 0.24-0.29 part of amine catalyst A33 and 0.18-0.25 part of tin catalyst T9; the component B includes 34-40 parts of isocyanate. The preparation method of the high-tensile strength sponge comprises the following steps of: adding the materials of the component A to a stirrer for uniformly mixing; adjusting the constant material temperature of the component A to 23 DEG C -27 DEG C; adjusting the rotation speed of the stirrer to 7000r / min; pouring the component B which is pre-heated to 23 DEG C-27 DEG C to the component A for stirring for 8 seconds; pouring the mixture to a pre-mould, observing the foaming condition, and curing for 24 hours after initiating; and testing the performances. The high-tensile strength sponge disclosed by the invention has higher tensile strength than that of the common sponge, and can satisfy the requirements of some special products.