Polyethenoxyamines used as main agent of gasoline detergent and preparation method thereof

A technology of gasoline detergent and polyetheramine, which is applied in the field of polyetheramine and its preparation, can solve the problems of poisonous acrylonitrile as the reaction raw material, difficulty in catalyst preparation, and high investment cost, and achieve improved vehicle driving performance, suitable molecular weight, and low investment. low cost effect

Inactive Publication Date: 2008-07-23
金浦新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Among the above four methods, the second method is due to the use of halogenating agents (phosgene, methanesulfonyl chloride), and the product polyetheramine will contain a small amount of halogen, and the existence of halogen is unfavorable to the preparation of gasoline detergent; The structure of polyetheramine does not meet the requirements of polyetheramine gasoline detergent; the fourth method has disadvantages such as low conversion rate and toxic reaction raw material acrylonitrile; the first method is currently the most advanced method, and the product conversion rate High quality, good quality, but high temperature and high pressure equipment is required, and due to the use of tubular reactors, the investment cost is high, and the catalyst preparation is difficult

Method used

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  • Polyethenoxyamines used as main agent of gasoline detergent and preparation method thereof
  • Polyethenoxyamines used as main agent of gasoline detergent and preparation method thereof
  • Polyethenoxyamines used as main agent of gasoline detergent and preparation method thereof

Examples

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Embodiment 1

[0047] A) preparation of polyether. 99.2 grams of nonylphenol (chemical structural formula C 9 h 19 C 6 h 4 OH) and 1.5 grams of potassium hydroxide are added to a 1-liter stainless steel reaction kettle, heated to about 110 ° C, dehydrated under vacuum for 0.5 to 1 hour, until no water is distilled, flushed with nitrogen, and then vacuumed, and then The temperature rises to about 140°C, continuously press about 422 grams of propylene oxide into the reactor, control the feed rate of propylene oxide, keep the pressure of the reactor at 0.15-0.6MPa, keep the reaction temperature at 150-180°C, and react in the reactor until the pressure no longer drops. After cooling, pour it into a beaker, add 20 grams of acid activated clay for neutralization and decolorization, and absorb potassium ions, then vacuum filter it with a Buchner funnel. Remove water and volatile matter under the following conditions to obtain polyether products. After chemical analysis, the product polyether h...

Embodiment 2

[0052] A) preparation of polyether. 103g lauryl alcohol (molecular formula C 12 h 25 -OH) and 1.65g of potassium hydroxide are added to a 1-liter stainless steel reaction kettle, heated to about 110°C, dehydrated under vacuum for 0.5 to 1 hour, until no water is distilled, flushed with nitrogen, and then evacuated, and then, Raise the temperature to about 140°C, press 452g of propylene oxide into the reactor, control the feeding speed, keep the pressure of the reactor at 0.15-0.6MPa, keep the reaction temperature at 150-180°C, and react until the pressure in the reactor no longer drops . After cooling, pour it into a beaker, add 24 grams of acidic activated clay for neutralization and decolorization, and absorb potassium ions, then vacuum filter it with a Buchner funnel. Remove water and volatile matter under the following conditions to obtain polyether products. According to chemical analysis, the product polyether has a hydroxyl value of 56.1mgKOH / g and a molecular weight...

Embodiment 3

[0058] A) preparation of polyether. 104g octylphenol (chemical structural formula C 8 h 17 C 6 h 4 OH) and 1.7g of potassium hydroxide are added to a 1-liter stainless steel reaction kettle, heated to about 110°C, dehydrated under vacuum for 0.5 to 1 hour, until no water is distilled, flushed with nitrogen, and then evacuated, and then When the temperature rises to about 140°C, press about 505g of propylene oxide into the reactor, control the feeding speed, keep the pressure of the reactor at 0.15-0.6MPa, keep the reaction temperature at 150-180°C, and react until the pressure in the reactor no longer drops . After cooling, pour it into a beaker, add 27 grams of acid activated clay for neutralization and decolorization, and absorb potassium ions, then vacuum filter it with a Buchner funnel. Remove water and volatile matter under the following conditions to obtain polyether products. After chemical analysis, the product polyether has a hydroxyl value of 47.1mgKOH / g and a m...

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Abstract

The invention relates to a polyetheramine used as the major component of gasoline detergent and the preparation method, which can be indicated by a general formula (1), in the formula (1), n is the repeated unit of the polyether segmer and the value is between 9 to 34; R1 is any one of the alkyl (C4 to C20), nonyl phenyl, octyl phenyl, dodecyl phenyl, pentadecyl phenyl, dinonyl phenyl and 2,6-di-tert-butyl-p-methylphenyl; R2 is any one of the hydrogen, methyl, ethyl, isopropyl or butyl. The preparation method comprises two steps: the preparation of polyether and the preparation of polyetheramine by the polyether with hydro-ammonification in a batch tank reactor. The polyetheramine used as the major component of gasoline detergent can be used as the major component of gasoline detergent and has the advantages of inhibiting carbon accumulation in the intake system and the combustion chamber of gasoline engine.

Description

technical field [0001] The invention relates to a polymer organic amine compound, in particular to a polyetheramine used as a main agent of a gasoline detergent and a preparation method thereof. Background technique [0002] Some unstable components such as olefins (especially diolefins), aromatics and sulfur-containing, nitrogen- and oxygen-containing compounds contained in gasoline will be oxidized by air to form corresponding adherents at the working temperature of engine-related components, and with the Hard carbon deposits are formed over time: fuel nozzle deposits (PFIDA), intake valve deposits (IVD), combustion chamber deposits (CCD). [0003] The existence of carbon deposits will have the following adverse effects on the engine: [0004] Affect the atomization effect of fuel oil, directly lead to the loss of fuel oil economy; cause carbon deposit knocking, shorten the life of the engine, and in severe cases, cause engine damage; engine power and performance decrease...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/22C07C217/04C08G65/04
Inventor 张金龙王鹏翔葛圣才
Owner 金浦新材料股份有限公司
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