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A method for modifying lubricating oil additive with trimethyl borate

A lubricating oil additive, trimethyl borate technology, applied in additives, lubricating compositions, petroleum industry, etc., can solve the problems of poor oxidation stability of polyisobutylene, achieve environmental friendliness, realize full utilization, and facilitate continuous production

Active Publication Date: 2017-12-29
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Polyisobutylene itself can be used as a viscosity modifier for lubricating base oils, but due to its terminal double bonds, polyisobutylene has poor oxidation stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a. Mix 110g of epoxy polyisobutylene and 2.75g of trimethyl borate with a mass concentration of 97% evenly, heat up to 110°C under stirring, and react for 4 hours to obtain a mixed solution, in which epoxy polyisobutylene and trimethyl borate The mass ratio of ester is 1:0.025;

[0019] b. Evaporate unreacted trimethyl borate from the obtained mixed solution under reduced pressure to obtain a light yellow transparent oily boron-containing epoxy polyisobutylene lubricating oil additive, wherein the acid value is 0.11 and the pour point is -12.

Embodiment 2

[0021] a. Mix 110g of epoxy polyisobutylene and 4.125g of trimethyl borate with a mass concentration of 97% evenly, then heat up to 100°C under stirring, and react for 3 hours to obtain a mixed solution, in which epoxy polyisobutylene and trimethyl borate The mass ratio is 1:0.0375;

[0022] b. Evaporate unreacted trimethyl borate from the obtained mixed solution under reduced pressure to obtain a light yellow transparent oily boron-containing epoxy polyisobutylene lubricating oil additive, wherein the acid value is 0.12 and the pour point is -13.

Embodiment 3

[0024] a. Mix 110g of epoxy polyisobutylene and 5.5g of trimethyl borate with a mass concentration of 97% evenly, heat up to 105°C under stirring, and react for 4 hours to obtain a mixed solution, in which epoxy polyisobutylene and trimethyl borate The mass ratio of ester is 1:0.05;

[0025] b. The obtained mixed solution is decompressed to evaporate unreacted trimethyl borate to obtain a lubricating oil additive of light yellow transparent oily boron-containing epoxy polyisobutylene mixed ester, wherein the acid value is 0.11, and the pour point is -16 .

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Abstract

The invention relates to a method for modifying lubricating oil additives with trimethyl borate. In the method, epoxy polyisobutylene and trimethyl borate are evenly mixed, heated up to the reaction temperature under stirring, and unreacted is evaporated under reduced pressure after the reaction. Trimethyl borate is a lubricating oil additive for obtaining light yellow transparent oily boron-containing epoxy polyisobutylene. The lubricating oil additive of boron-containing epoxy polyisobutylene obtained by the method of the present invention has an acid value of less than 0.05-0.5, a viscosity of 6000-9000 at a temperature of 40°C, a viscosity of 210-320 at a temperature of 100°C, and a viscosity index of 135. ‑175, flash point 200‑230, pour point ‑15~‑22. The invention has a clean process, is environmentally friendly, does not require high-pressure and high-temperature devices, has simple implementation conditions, is convenient for large-scale continuous production, is beneficial to the reuse of resources, increases the added value of products, and reduces environmental pollution. The lubricant base oil has good compatibility, which opens up a new way for the production of new lubricant additives.

Description

technical field [0001] The invention relates to a method for modifying lubricating oil additives with trimethyl borate. Background technique [0002] The domestic petroleum industry and automobile industry are both in the stage of rapid development recently. The output of lubricating oil has increased rapidly, and the demand for lubricating oil additives has naturally increased. Due to different lubrication conditions, different requirements are put forward for lubricating materials. [0003] Low molecular weight and high activity polyisobutene is a colorless viscous liquid, its terminal double bond content is greater than 80%, and it has high reactivity. It can be directly introduced into appropriate groups without accelerators, and a series of derivatives with excellent performance can be obtained. Lubricating oil, fuel additives, emulsion explosives, surfactants, cleaning agents and antirust agents have broad application prospects. In terms of lubricating oil, polyisobut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M155/00C08F8/42C08F10/10C10N30/06C10N30/10
Inventor 夏木西卡玛尔·买买提吾满江·艾力古丽米热·吐尔地
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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