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171results about How to "Surfactant" patented technology

A grape preservative and preparation method thereof

The invention provides a grape preservative and a preparation method thereof, which belongs to the fruit preservation field. The mentioned grape preservative includes the following ingredients with parts by weight: 0.5-3 parts of cinnamon essential oil, 0.5-2 parts of zanthoxylum bungeanum volatile oil, 0.5-2 parts of sodium alginate, 6-8 parts of sucrose fatty acid ester, 4-6 parts of polysorbate 80, 1-5 parts of propionic acid, 1-4 parts of calcium chloride, 2-4 parts of vitamin C, 2-4 parts of potassium sorbate, 10-20 parts of chitosan citrate solution and 10-20 parts of water. The preparation method comprises the steps of mixing the sodium alginate, sucrose fatty acid ester, polysorbate 80, propionic acid and water and fully dissolving them; then adding the essential oil to get composite essential oils; adding the composite essential oils into the chitosan citrate solution and blending. After picking of grapes, the diseased fruit and bad fruit are removed, the grapes are soaked in the mentioned preservation liquid for 3- 8 min. After taking out the grapes and draining them, the grapes are stored. The grape preservative mentioned in the invention can greatly reduce or delay decrease of quality and decay during storage process of grapes, which has outstanding grape preservation effect.
Owner:滁州嘉实农业科技有限公司

Tertiary amine oxide with rosinyl three-membered phenanthrene ring structure and preparation method of tertiary amine oxide

The invention discloses a tertiary amine oxide with a rosinyl three-membered phenanthrene ring structure and a preparation method of the tertiary amine oxide. The preparation method comprises the following steps of: (1) dissolving, namely mixing tertiary amine, an alcoholic solution or water and catalysts, heating the mixture to 50-60 DEG C, stirring and dissolving the mixture to obtain an alcoholic solution or an aqueous solution of the tertiary amine; (2) oxidizing reaction, namely mixing the alcoholic solution of the tertiary amine and hydrogen peroxide in a mole ratio of the tertiary amine to the hydrogen peroxide 1:(1-1.5), reacting the mixture for 12-25 hours at 65-80 DEG C, then adding disulfate and excess hydrogen peroxide to the mixture for reacting for 0.5-1 hour; and (3) separating and drying, namely steaming reaction products in a spinning manner, and drying the products in vacuum to obtain the tertiary amine oxide with the rosinyl three-membered phenanthrene ring structure. The tertiary amine oxide disclosed by the invention is high in electrolyte resistance and good in defoaming capability, has a good effect in hard water, and has good wetting and emulsifying performance. The preparation method is simple and practicable and is high in yield.
Owner:GUANGXI UNIV FOR NATITIES

Plastic composite lubricating agent and preparation method thereof

The invention belongs to the technical field of plastic auxiliaries and specifically relates to a plastic composite lubricating agent and a preparation method thereof. The plastic composite lubricating agent comprises a spherical or near-spherical inorganic powder kernel with lubricating property and a graft-modified polymer wax housing coated on the outer layer. The preparation method comprises the following process steps of: a) performing graft modification: uniformly mixing polymer wax, grafting monomers, an initiator and metal soap, and then performing modification and granulation througha screw extruder; and b) coating powder: using a coating device to coat spherical or near-spherical inorganic powder with the lubricating property in the graft-modified polymer wax. Through optimal selection and improvement of raw materials, optimization of a process and reasonable compounding of all components, the formed composite lubricating agent has good lubricating property inside and outside a full temperature range during plastic processing, and integrates the effects such as heat stability, compatibilization and the like; and the preparation method is favorable for simplifying the formula and process of the modified plastics, and can improve the processing performance of the plastics and lower the cost.
Owner:广州峰华化工科技有限公司

Metal quaternary ammonium oxyphosphate dispersoid and application of metal quaternary ammonium oxyphosphate dispersoid to exploitation of thickened oil

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.
Owner:SOUTHWEST PETROLEUM UNIV

Method for preparing body cleaning soap with gardenia fragrance

The invention relates to a method for preparing a body cleaning soap with gardenia fragrance. The method comprises the following steps in sequence: weighting 70 parts by weight of sodium hydroxide and 2 parts by weight of potassium hydroxide, and adding 100 parts by weight of water to dissolve to obtain an alkali solution; weighting 300 parts by weight of olive oil, 100 parts by weight of coconut oil and 50 parts by weight of lard, heating to melt, adding the prepared alkali solution, stirring for 25-35 minutes, loading into a mold for natural reaction of 20 days, and demolding to obtain a piece of original soap; grinding the original soap, adding 50 parts by weight of lecithin, 10 parts by weight of nano pearl powder, 2 parts by weight of the sea cucumber polysaccharide, 0.1-0.3 part by weight of saffron extract powder, 5-8 parts by weight of essential oil of gardenia and 100 parts by weight of milk, mixing uniformly, and heating to melt; and loading into a mold for natural reaction of 30 days, and demolding to obtain the product. The trial result shows that body cleaning soap with gardenia fragrance can not cause the skin condition to get worse and has the efficacy of reducing the pimples significantly and lessening or totally removing the slight wart.
Owner:南通灵敦运动用品有限公司

Butterfly-shaped SnO2 two-dimensional nanometer material, and preparation method and application thereof

The invention discloses a butterfly-shaped SnO2 two-dimensional nanometer material, and a preparation method and an application thereof. The butterfly-shaped SnO2 two-dimensional nanometer material isprepared by using SnSO4 and SDBS as raw materials through a two-step combined method of a hydrothermal reaction and high-temperature oxidizing annealing. The butterfly-shaped SnO2 two-dimensional nanometer material has a two-dimensional butterfly shape and a structure rich in surface defects, and has the characteristics of gas adsorption, surface activity, oxidation reduction and gas sensitivity.The preparation method comprises the following steps: preparation of a precursor solution, a main reaction, separation of a precursor, and preparation of a nanometer material through high-temperatureoxidizing heat treatment. The application comprises the application of the butterfly-shaped SnO2 two-dimensional nanometer material in preparation of gas sensors. Directed at the problems of complicated preparation procedures, high cost, incapability of realizing large-scale preparation and addition of environmentally-unfriendly, toxic and harmful organic solvents like strong acid and strong alkali in conventional preparation of the two-dimensional SnO2 nanometer material, the invention provides a simple, economical, green and easily-scaled synthetic method.
Owner:YUNNAN UNIV

Preparation method of reactive gemini quaternary ammonium salt leather bactericide

The invention discloses a preparation method of a reactive gemini quaternary ammonium salt leather bactericide. The preparation method comprises the following three steps: first step, carrying out esterification reaction on bromoacetyl bromide and fatty alcohol to generate bromine acetate; second step, carrying out nucleophilic substitution on trans-1,4-dichloro-2-butene and diethylamine to generate trans-N,N,N',N'-tetraethyl-2-butene-1,4-diamine; and third step, carrying out quaterisation on products obtained from the first two steps to obtain a reactive gemini quaternary ammonium salt. The preparation method is easy to operate, the yield of products is high, the cost of raw materials is low, the practicality is high, and moreover, a method for synthesizing diamine intermediate in the second step provides a new thinking and new method for synthesis of the gemini quaternary ammonium salt. Owing to existing of prepared bactericide molecular structure ester groups, the sterilizing property is improved, and biodegradability can be good. In addition, owing to existing of active groups C=C in the structure, the chemical activity of the gemini quaternary ammonium salt is improved, the gemini quaternary ammonium salt can be further chemically bounded into skin collagen and leather coating resin materials, and the long-lasting sterilizing property can be achieved.
Owner:SICHUAN UNIV
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