Lubricating oil composition

A lubricating oil composition, composition technology, applied in the direction of lubricating composition, petroleum industry, additives, etc., can solve problems such as the use of phenolic ester type antioxidant and ester type anti-wear and friction reducer that have not been mentioned, and achieve excellent Antioxidant effect

Active Publication Date: 2005-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of phenolic ester antioxidants and ester antiwear and friction reducers is not mentioned

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add the additives in the following proportions to 10W / 40 SJ / SH grade gasoline engine oil to measure the anti-oxidation, anti-wear and anti-friction performance. The test results are shown in Table 1.

[0035] (A) Butyl octyl zinc dithiophosphate 0.5%, di-sec-butyl octyl zinc dithiophosphate 0.3%;

[0036] (B) 0.5% of butyl octyl diphenylamine, 0.4% of octyl tert-butyl hydroxyphenyl propionate antioxidant;

[0037] (C) 0.5% molybdenum oxysulfide dioctyl dithiophosphate;

[0038] (D) 0.2% of trihydric alcohol carboxylate anti-wear and friction reducer;

[0039] (E) Zinc dioctyldithiocarbamate 0.2%.

Embodiment 2

[0041] Add the additives in the following proportions to 10W / 40 SJ / SH grade gasoline engine oil to measure the anti-oxidation, anti-wear and anti-friction performance. The test results are shown in Table 1

[0042] (A) 0.6% zinc dibutyl dithiophosphate;

[0043] (B) 0.5% of butyl octyl diphenylamine, 0.5% of octyl tert-butyl hydroxyphenyl propionate antioxidant;

[0044] (C) 0.5% molybdenum oxysulfide dioctyl dithiophosphate;

[0045] (D) 0.1% of trihydric alcohol carboxylate anti-wear and friction reducer;

[0046] (E) Zinc dioctyldithiocarbamate 0.2%.

Embodiment 3

[0048] Add the additives in the following proportions to 15W / 40 SJ / SH grade gasoline engine oil to measure the anti-oxidation, anti-wear and anti-friction performance. The test results are shown in Table 1.

[0049] (A) 0.3% of butyl octyl zinc dithiophosphate, 0.3% of di-sec-butyl zinc dithiophosphate;

[0050] (B) 0.4% of butyl octyl diphenylamine, 0.5% of isooctyl tert-butyl hydroxyphenyl propionate antioxidant;

[0051] (C) 0.5% molybdenum butyl octyl dithiocarbamate;

[0052] (D) 0.2% of trihydric alcohol carboxylate anti-wear and friction reducer;

[0053] (E) Zinc dioctyldithiocarbamate 0.2%.

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Abstract

One lube oil compound with the quality of oxidation resistance, abrasive resistance, and anti-attrition, based on total weight of the compound, includes the following components: (a) zinc salt, ntoquita nantokite, magnesium salts, calcium salt and barium salt of dialkyl phosphorodithioic acid, the content is 0.1-3.5%; (b) compound antioxidant of amine antioxidant and phenolic ester antioxidant, the content is 0.2-3.0%; (c) molybdenum salt of dialkyl dithioic organic acid, the content is 0.05-1.5%; (d) monohydric or polyhydric alcohol ester with abrasive resistance and anti-attrition produced by monohydric alcohol or diatomic alcohol and alkyl, arene or alkyl phenol in place of carboxylic acid, the content is 0.05-1.5%; (e) zinc salt, sodium salt, magnesium salts, calcium salt and barium salt dialkyl dithiocarbamate or dialkyl dithiobenzoic acid, the content is 0.05-1.5%; (f) grease oil, the residue.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular, an internal combustion engine oil composition with anti-oxidation, anti-wear, and anti-friction effects, especially a high-grade gasoline engine oil composition. Background of the invention [0002] The lubricating oil for internal combustion engines of automobiles is subjected to the influence of the working environment during work. This environment, such as high temperature, oxidizes and accelerates the oxidation of the oil; impurities such as compounds such as iron in the oil catalyze this oxidation. role. This oxidation of internal combustion engine oil during use is generally controlled to a certain extent by the use of antioxidants, which can prolong the service life of oil products. In the past, internal combustion engine oil generally used zinc dihydrocarbyl dithiophosphate (ZDDP) alone, or compounded with a small amount of diphenylamine-type antioxidant to meet the require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M137/10
Inventor 王立华武志强李洪燕李洪军段家春
Owner CHINA PETROLEUM & CHEM CORP
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