Engine lubricating oil dispersing additive

A technology for engines and lubricating oils, applied in the direction of additives, lubricating compositions, petroleum industry, etc., which can solve the problems that the use and manufacture of additives cannot achieve the desired effect and the price is expensive, and achieve the maintenance of oil quality, simple preparation, 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 desired effect on the use and manufacture of various additives, and the price is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An engine lubricating oil dispersant additive is composed of base oil; polyisobutylene bisbutyrimide; sulfurized alkyl powder calcium; diarylamine and hindered phenol mixture. The base oil is a mixture of 150BS, M14 and minus four lines. The weight ratio of the three components is 1:1:1. The mixture of two components of diarylamine and hindered phenol, the weight ratio of the two components is 1:1, the temperature is controlled between 40-50 DEG C during mixing, and the mixture is stirred for 120 minutes. The weight percent of each component is: base oil 26%; polyisobutylene bisbutyrimide 45%; sulfurized alkyl powder calcium 8%; polyisobutene amine 9%; diarylamine and hindered phenol mixture 12% The above-mentioned base oil; polyisobutylene bisbutyrimide; sulfurized alkyl powder calcium; Between 45-50°C, stir for 120 minutes. After filtering, the product of the present invention is produced.

[0014] This product is added to ordinary lubricating oil according to the...

Embodiment 2

[0020] An engine lubricating oil dispersant additive is composed of base oil; polyisobutylene bisbutyrimide; sulfurized alkyl powder calcium; diarylamine and hindered phenol mixture. The base oil is a mixture of 150BS and 5 centistokes. The weight ratio of the two components is 1:1. The mixture of two components of diarylamine and hindered phenol, the weight ratio of the two components is 1:1, the temperature is controlled between 40-50 DEG C during mixing, and the mixture is stirred for 120 minutes. The weight percent of each component is: base oil 19%; polyisobutylene bisbutyrimide 47%; sulfurized alkyl powder calcium 10%; polyisobutene amine 10%; mixture of diarylamine and hindered phenol 14% The above-mentioned base oil; polyisobutylene bisbutyrimide; sulfurized alkyl powder calcium; Between 45-50°C, stir for 300 minutes. After filtering, the product of the present invention is produced.

[0021] This product is added to ordinary lubricating oil according to the dosage...

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PUM

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Abstract

An engine lubricating oil dispersing additive is characterized by comprising components of, by weight, 45-47% of polyisobutene-bis-succinimide, 8-10% of sulfurized calcium alkyl phenolate, 9-10% of polyisobutene amine, 12-14% of a mixture of diarylamine and sterically hindered phenol and the balance of base oil. The engine lubricating oil dispersing additive of the invention is simply prepared, convenient, economical and practical, and keeps a clear disperse effect of a lubricating oil for a long time; besides the engine lubricating oil dispersing additive can keep disperse efficacy on soot, resin, coating, carbon deposit, an initial stage product of deposit of the lubricating oil and the deposit for a long time, has heat and oxidation stability, good low temperature performance, and can maintain oil product quality of the lubricating oil for a long time and prolong an oil change period.

Description

(1) Technical field [0001] The invention relates to a lubricating oil additive, in particular to a preparation scheme and a manufacturing method of an engine lubricating oil dispersant. (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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N30/04C10N40/25C10N40/04
Inventor 孙世桦
Owner TIANJIN GONGBO SCI TECH DEV
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