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A kind of gasoline detergent polyether amine and its synthetic method

The technology of a gasoline detergent and a synthesis method, which is applied in the petrochemical field, can solve the problems of high cost of polyetheramine, seldom used, high toxicity of acrylonitrile, etc., so as to prolong the service life, reduce the production cost, and easily control the operation process. Effect

Inactive Publication Date: 2019-01-15
SHENZHEN GCD PETROLEUM ADDITIVE CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of polyetheramine produced by polyethernitrile alkylation is too high, and the reaction raw material acrylonitrile is highly toxic, so it is rarely used in industry.

Method used

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  • A kind of gasoline detergent polyether amine and its synthetic method
  • A kind of gasoline detergent polyether amine and its synthetic method
  • A kind of gasoline detergent polyether amine and its synthetic method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0043] Add 1000 grams of polypropylene glycol (molecular weight 1000), 115 grams of p-chloroaniline, 36 grams of NaOH, 0.11 grams of tetramethylammonium chloride and 1000 milliliters of DMSO in the there-necked flask equipped with stirrer, condenser and thermometer, slowly heat to 70°C, react for 1 hour, cool to room temperature, dilute with water, add 10 g of polyoxyethylene polyoxypropylene polyether, and extract twice with 1200 ml of petroleum ether, combine the organic phases, wash with water, and anhydrous Na 2SO 4 After drying, filtering, the filtrate was distilled off under reduced pressure to remove the solvent and other low boilers to obtain 1015 g of the product.

example 2

[0045] Add 1000 grams of polypropylene glycol (molecular weight 1000), 170 grams of N-(4-chlorophenyl) ethylenediamine, 40 grams of NaOH, 3.2 grams of tetrabutyl bromide in a three-necked flask equipped with a stirrer, condenser and thermometer ammonium and 1200ml DMF, slowly heated to 80°C, reacted for 3 hours, cooled to room temperature, diluted with water, added 6g butanol, and extracted 3 times with 1400ml ethyl acetate, combined organic phases, washed with water, anhydrous Na 2 SO 4 After drying, filtering, the filtrate was distilled off under reduced pressure to remove the solvent and other low boilers to obtain 1125 g of the product.

example 3

[0047] Add 2000 grams of polypropylene glycol (molecular weight 2000), 190 grams of 4-(2-aminoethoxy) chlorobenzene, 62 grams of KOH, 4.1 grams of benzyltriethyl Ammonium chloride and 2000 ml of DMSO aqueous solution (4:1), slowly heated to 90 ° C, reacted for 2 hours, cooled to room temperature, diluted with water, added 12 g of butanol, and extracted 3 times with 2100 ml of toluene, combined organic phases, washed with water , anhydrous Na 2 SO 4 After drying and filtering, the filtrate was distilled off under reduced pressure to remove the solvent and other low boilers to obtain 2118 g of the product.

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Abstract

The invention provides polyether amine used as a gasoline deterging and a synthesis method of the polyether amine used as the gasoline deterging, and belongs to the field of petrochemical industry. According to the polyether amine disclosed by the invention, polyethers which are bulk chemicals are taken as starting materials, and condensed with halogenated aminobenzene to prepare the polyether amine by one step. The polyether amine is added into gasoline, so that carbon deposition of an engine fuel nozzle, an inlet valve and a combustion chamber can be inhibited or removed, the sufficient combustion of fuel can be further promoted, the fuel is saved, the automobile exhaust pollutant emissions are reduced, the service life of an engine is prolonged, and the polyether amine used as the gasoline deterging has important application values. The polyether amine used as the gasoline deterging is cheap in raw materials, sufficient in sources, simple in synthesis process, low in production cost, and good in good development prospects.

Description

technical field [0001] The invention belongs to the field of petrochemical industry, and in particular relates to a new synthesis method of gasoline detergent polyetheramine. Background technique [0002] Affected by the poor quality of crude oil and the backward refining process, the content of unsaturated hydrocarbons, sulfur and nitrogen compounds in motor gasoline in my country is relatively high, which is easily oxidized to form colloids during storage and use, resulting in gasoline burning during combustion. It is easy to form carbon deposits in nozzles, intake valves, combustion chambers and other parts, which will cause problems such as poor oil supply, incomplete combustion, reduced maneuverability, increased fuel consumption, etc., and discharge a large amount of harmful exhaust gas. In recent years, with the continuous growth of domestic car ownership, the air pollution caused by vehicle exhaust pollutants has become more and more serious, and it is urgent to elimi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/333C10L1/238
CPCC08G65/33313C08G65/33317C10L1/238
Inventor 严斌胡涛英熊靓王小晨
Owner SHENZHEN GCD PETROLEUM ADDITIVE CO
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