Engine oil dispersing additive

A technology for engine oil and additives, applied in the directions of additives, petroleum industry, lubricating compositions, etc., can solve the problems of high price, the use and manufacture of additives cannot achieve ideal effects, etc., and achieve simple preparation, maintain oil quality, and good low-temperature performance. Effect

Inactive Publication Date: 2012-05-09
TIANJIN GONGBO SCI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The engine lubricating oil produced by domestic manufacturers can not achieve the desi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An engine oil dispersant additive is composed of base oil; polyisobutylene succinyl ester; thiophosphate; polyisobutylene amine; a mixture of two components of diarylamine and hindered phenol. The base oil is a mixture of 150BS and 5 centistokes. The weight ratio of the two components is 1:1. The mixture of diarylamine and hindered phenol needs to be mixed in advance, the weight ratio of the two components is 1:1, the temperature is controlled between 40-45° C. during mixing, and the mixture is stirred for 120 minutes. The weight percent of each component is: base oil 24%; Polyisobutylene succinyl ester 46%; Thiophosphate 7%; Polyisobutene amine 9%; Two kinds of mixtures of diarylamine and hindered phenol 14%; Base oil; polyisobutylene succinyl ester; thiophosphate; polyisobutylene amine; the mixture of diarylamine and hindered phenol is measured according to the above-mentioned weight percentage, mixed evenly, heated and controlled at 45- Between 56°C, stir for 180 m...

Embodiment 2

[0020] An engine oil dispersant additive is composed of base oil; polyisobutylene succinyl ester; thiophosphate; polyisobutylene amine; a mixture of two components of diarylamine and hindered phenol. The base oil is a mixture of 150BS and 10 centistokes. The weight ratio of the two components is 1:1. The mixture of diarylamine and hindered phenol needs to be mixed in advance, the weight ratio of the two components is 1:1, the temperature during mixing is controlled between 40-45° C., and it is enough to stir for 360 minutes. The percentage by weight of each component is: base oil 18%; polyisobutylene succinyl ester 48%; thiophosphate 9%; polyisobutene amine 10%; Base oil; polyisobutylene succinyl ester; thiophosphate; polyisobutylene amine; the mixture of diarylamine and hindered phenol is measured according to the above-mentioned weight percentage, mixed evenly, heated and controlled at 45- Between 56°C, stir for 180 minutes. After filtering, the product of the present inv...

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PUM

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Abstract

The invention discloses an engine oil dispersing additive, which is characterized by consisting of the following components in percentage by weight: 46-48 percent of polyisobutene succinyl ester, 7-9 percent of thiophosphate, 9-10 percent of polyisobutene amine, 14-15 percent of mixture of diarylamine and sterically hindered phenol and the balance of base oil. The engine oil dispersing additive has the advantages of easiness for preparing, convenience for operating, high economic efficiency, practicability and capability of keeping the pure dispersing effect of lubricating oil permanently. Due to the adoption of the engine oil dispersing additive, the dispersing effects of primary products of sediments and sediments in soot, resin, glue films, carbon deposits and lubricating oil can be kept permanently, heat and oxidation stability and high low-temperature property are achieved simultaneously, the oil product quality of the lubricating oil is kept permanently, and the oil replacing period is prolonged.

Description

(1) Technical field [0001] The invention relates to a lubricating oil additive, in particular to a preparation scheme and a preparation method of an engine oil dispersing additive. (two) background technology: [0002] The main function of dispersants is to disperse soot, resin, film and carbon deposits, as well as early sediment products and sediments. To be effective, a dispersant should possess other properties including thermal and oxidative cavitation and good low temperature performance. If the dispersant is poorly thermally stable, it will decompose, losing linkage and suspending potentially harmful products. Poor oxidation stability can transform the dispersant molecules and form deposits themselves. This is also a major factor in the unstable quality of current engine lubricating oils. The engine lubricating oils produced by domestic manufacturers cannot achieve ideal results in the use and manufacture of various additives, and are expensive. (3) Contents of th...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10N30/04C10N40/25C10N40/04
Inventor 孙世桦
Owner TIANJIN GONGBO SCI TECH DEV
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