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55 results about "Ethyl nitrate" patented technology

Ethyl nitrate is the ethyl ester of nitric acid and has the chemical formula C₂H₅NO₃. It is a colourless, volatile, highly flammable liquid. It is used in organic synthesis and as an intermediate in the preparation of some drugs, dyes, and perfumes.

Gas generator composition and preparation thereof

The invention relates to a gas production composition and a preparation method thereof. The gas production composition provided by the invention contains solute and solvent, wherein the gas production composition also contains cosolvent, and the solute is ethyl nitrate, nitrification diethanolamine or polyurethane. The method for preparing the gas production composition, which is provided by the invention, comprises the steps of well mixing the solute, the solvent and the cosolvent at a temperature between 0 and 65 DEG C and obtaining the gas production composition, wherein the solute is ethyl nitrate, nitrification diethanolamine or polyurethane. The gas production composition provided by the invention has the characteristics of innocuity, high gas production efficiency, fast combustion, no residue after combustion, low combustion temperature and suitability for large-scale application.
Owner:BYD CO LTD

Synthetic method of 2,2-diethoxy acetophenone photoinitiator

The invention relates to a synthetic method of a 2,2-diethoxy acetophenone photoinitiator, which comprises the following steps: a, synthesizing ethyl nitrite, namely mixing ethanol with 28 percent of aqueous solution of sodium nitrite in a reaction kettle with mechanical stirring and a gas ingress pipe, dripping 20 percent dilute sulphuric acid into the mixture at the temperature of between 20 and 30 DEG C to generate ethyl nitrite gas, and directing introducing the generate ethyl nitrite gas into the step b for reaction, wherein the molar ratio of the ethanol to the sodium nitrite to the dilute sulphuric acid is 1.00:1.09 to 1.68:1.10 to 1.18; and b, synthesizing 2,2-diethoxy acetophenone, namely introducing the ethyl nitrite gas generated by the step a into acetophenone and 36 percent hydrogen chloride ethanol solution, and neutralizing the mixture by using sodium hydroxide solution after a reaction ends to prepare finished products, wherein the molar ratio of the acetophenone to the hydrogen chloride ethanol solution is 1:1. The synthetic method is simple and convenient in process and high in product yield and is suitable for industrial production.
Owner:NANKAI UNIV +1

Methanol gasoline composite additive, and preparation method and application thereof

The invention relates to a methanol gasoline composite additive, and a preparation method and application thereof. The methanol gasoline composite additive is prepared from the following raw materials in percentage by weight: 68 to 72 percent of animal oil, 0.5 to 1.0 percent of plant oil, 0.2 to 0.5 percent of alkylbenzene, 0.1 to 0.7 percent of monoethanolamine, 0.1 to 0.7 percent of diethanolameine, 0.1 to 0.6 percent of triethanolamine, 1.0 to 2.1 percent of isooctyl nitrate, 1.0 to 2.1 percent of isopropyl nitrate, 1.0 to 2.1 percent of ethyl nitrate, 1.0 to 2.1 percent of sodium hydroxide, 1.0 to 2.1 percent of potassium hydroxide and 18 to 22 percent of water. According to the preparation method, the raw materials are sequentially put into a mixing container according to the proportion, and are stirred at the same time; then, the mixing container is put into ultrasonic waves, and agitation is performed for 15 to 25 min; and the composite additive is obtained. The composite additive provided by the invention can be applied to M25 to M60; the corrosion of methanol gasoline on an automobile can be reduced; and the octane value, the blasting point, the combustion heat value, the oil product quality and the power of the methanol gasoline can be improved.
Owner:XUZHOU LANHAI ENERGY TECH CO LTD

Preparation method of particle size controllable tin dioxide nano-powder

The invention discloses a preparation method of a particle size controllable tin dioxide nano-powder, and in particular relates to a preparation method of a high dispersibility and high crystallinity tin oxide nano-powder with a particle size of 10-18nm, i.e. ethyl nitrate assisted precipitation method. The method utilizes the auxiliary effect of ethyl nitrate formed by nitric acid and ethanol and precipitation technique to prepare tin oxide nano-powder. The tin oxide nano-powder prepared by the method has adjustable particle size, uniform particle size distribution, and good dispersion and crystallization properties, also has no need for changing the calcination temperature and heat treatment time, and has the advantages of simple process, low cost, and short preparation cycle, etc.
Owner:DALIAN JIAOTONG UNIVERSITY

Method for preparing ethyl nitrate by continuously nitrifying nitric acid steam

The invention discloses a method for preparing ethyl nitrate by continuously nitrifying nitric acid steam, which belongs to the field of energetic materials. The method comprises the steps of preparing a nitrifying agent, heating the nitrifying agent to 40-60 DEG C, adding dropwise ethanol and nitric acid, and separating liquid after the addition, wherein ethyl nitrate is positioned in the lower layer; and finally washing, drying and rectifying the ethyl nitrate to obtain pure ethyl nitrate. The method changes the traditional nitrifying method for preparing the ethyl nitrate, effectively uses the steam produced by nitrifying under the protection of carbonyl groups, enables products to be moved out fast, controls the feeding speed and the product production in order, shortens the residence time of nitrate in a heating environment, slows the production of nitrous acid products, and improves the safety of production and preparation processes.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Alcohol-based fuel oil and preparation method thereof

Te invention relates to alcohol-based fuel oil and a preparation method thereof. The alcohol-based fuel oil comprises the following components in percentage by weight: 57.5%-67.5% of fuel oil, 10%-20% of fatty acid, 10%-20% of crude carbinol, 0.5%-1.5% of diethanol amine and 0.1%-1% of ethyl nitrate. The preparation method for the alcohol-based fuel oil comprises the following steps of: adding the 10%-20% of crude carbinol when the fuel oil, the fatty acid, the diethanol amine and the ethyl nitrate are mixed and heated up to 40 DEG C; and forming the clear fuel oil by high-speed shearing and stirring. The fuel oil is high in stability; the preparation method is simple; the fatty acid is utilized as an emulsifier, and the crude carbinol can be uses as a combustion improver and pour point reducer by virtue of the water-containing characteristics of the crude carbinol, so that the dosage of the dear additive is reduced and the production cost is reduced; moreover, the fatty acid is formed and processed by utilizing recycled cooking oil as well as waste acidifying plant oil as materials, so that the waste is recycled, and the resource utilization rate is high.
Owner:张学纯

Energy-saving emission-reducing gasoline additive and preparation method and application thereof

The invention discloses an energy-saving emission-reducing gasoline additive and a preparation method and application thereof, and belongs to the technical field of fuels. The energy-saving emission-reducing gasoline additive is prepared from denatured fuel ethanol, 2-ethyl hexanol, isopropyl alcohol, methylbenzene, ethyl tert butyl ether, paraffin hydrocarbon solution, a nonionic surfactant, bis-(3-triethoxysilylpropyl)-tetrasulfide, polyoxyethylene sorbitan fatty acid ester, ethyl nitrate and isooctyl nitrate; the energy-saving emission-reducing gasoline additive is applicable to fuel oils,has low addition quantity, high combustion efficiency, low gasoline consumption and good cleaning effect, emission of pollutants is decreased, and environmental pollution is relieved.
Owner:胡张艳
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