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Lubricating oil composition and preparation method thereof

A technology of lubricating oil composition and lubricating base oil, which is applied in the field of lubricating oil composition of gasoline engine oil, can solve the problems such as the biodegradability of the formula needs to be improved, poor economy, low-speed early combustion, etc., and achieve excellent detergency, economical Excellent performance and low formulation dosage

Active Publication Date: 2021-12-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of additives in the existing gasoline engine oil formula is relatively large, generally 5% to 12%, the economy is not good, the low-speed early combustion phenomenon has not been solved, and the biodegradability of the formula also needs to be improved

Method used

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  • Lubricating oil composition and preparation method thereof
  • Lubricating oil composition and preparation method thereof
  • Lubricating oil composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Embodiment 1 Ester compound A 1 preparation of

[0069] In a 500mL three-necked flask, add 100 grams of epoxy fatty acid methyl ester (purity 82%, average molecular weight: Mn=319, wherein trans-9,10-epoxy octadecanoic acid methyl ester accounts for 50%, molecular weight=312, trans Formula-9,10-epoxy-12,13-epoxy octadecanoic acid methyl ester accounts for 50%, molecular weight = 326, epoxy value 5.5, light yellow viscous oily liquid, 0.263mol), 3,5 ditert 90 grams of butyl-4 hydroxybenzoic acid (Mn=250.23, 0.36mol), the molar ratio of 3,5 di-tert-butyl-4 hydroxybenzoic acid to epoxy fatty acid methyl ester=1.37:1, heated to 100 under stirring ℃, then add 4 grams of sodium bisulfate to react for 9h, stop the reaction, infrared analysis results show that the wave number is 823cm -1 and 842cm -1 The left and right absorption peaks disappear, indicating that the three-membered ring in the epoxy fatty acid methyl ester has reacted, and at 1740cm -1 and 3500cm -1 There a...

Embodiment 2

[0070] Embodiment 2 Ester compound B 1 preparation of

[0071] In a 500mL three-necked flask, add 100 grams of epoxy fatty acid methyl ester (purity 82%, average molecular weight: Mn=319, wherein trans-9,10-epoxy octadecanoic acid methyl ester accounts for 50%, molecular weight=312, trans Formula-9,10-epoxy-12,13-epoxy octadecanoic acid methyl ester accounts for 50%, molecular weight = 326, epoxy value 5.5, light yellow viscous oily liquid, 0.263mol), 3,5 ditert 100 grams of butyl-4-hydroxyphenylacetic acid (Mn=264.23, 0.38mol), the molar ratio of 3,5 di-tert-butyl-4-hydroxyphenylacetic acid to epoxy fatty acid methyl ester=1.44:1, heated to 100 under stirring ℃, then add 5.0 grams of Amberlyst15 catalyst to react for 10 hours, stop the reaction, infrared analysis results show that the wave number is 823cm -1 and 842cm -1 The left and right absorption peaks disappear, indicating that the three-membered ring in the epoxy fatty acid methyl ester has undergone ring-opening rea...

Embodiment 3

[0072] Implementation 3 Esters C 1 preparation of

[0073] In a 500mL three-necked flask, add 100 grams of epoxy fatty acid methyl ester (purity 82%, average molecular weight: Mn=319, wherein trans-9,10-epoxy octadecanoic acid methyl ester accounts for 50%, molecular weight=312, trans Formula -9,10-epoxy-12,13-epoxy octadecanoic acid methyl ester accounts for 50%, molecular weight = 326, epoxy value 5.5, light yellow viscous oily liquid, 0.263mol), 3,5 diethyl Base-4 hydroxyphenylacetic acid 83 grams (Mn=208,0.40mol), the molar ratio of 3,5 diethyl-4 hydroxyphenylacetic acid and epoxy fatty acid methyl ester=1.52:1, heated to 100 ℃ under stirring, Then add 5 grams of benzenesulfonic acid and react for 7 hours. When the epoxidation value is close to 0, stop the reaction. The infrared analysis results show that the wave number is 823cm -1 and 842cm -1 The left and right absorption peaks disappear, indicating that the three-membered ring in the epoxy fatty acid methyl ester ha...

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Abstract

The invention provides a lubricating oil composition and a preparation method thereof. The lubricating oil composition comprises a clearing agent, an antioxidant, a dispersing agent, a tackifier, a pour point depressant and a main amount of lubricating base oil. The lubricating base oil is one or more of API (American Petroleum Institute) I, II, III, IV and V lubricating base oil, and includes at least one API V lubricating base oil. The API V lubricating base oil comprises an ester compound, the structure of the ester compound is shown as a formula (I) (See the specification), and the definitions of all groups and symbols are shown in the specification. The lubricating oil composition has excellent high-temperature detergency, oxidation stability, anti-wear and anti-friction properties and biodegradability, can solve the problem of low-speed pre-ignition of gasoline engine oil, is suitable for lubrication of high-grade gasoline engines, and is especially suitable for lubrication of turbo supercharged engines.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a lubricating oil composition suitable for gasoline engine oil. Background technique [0002] At present, with the rapid development of my country's automobile industry, my country's car ownership has grown rapidly. Among them, the number of cars with gasoline engine as the engine is about 40%. Most of these cars are distributed in major cities across the country, causing a series of problems such as sharp urban traffic congestion and increased exhaust emissions. [0003] Different from diesel locomotives, the operating temperature of gasoline locomotive engines is relatively low, and they are in the state of starting and stopping for a long time in the city, which is prone to generate a large amount of low-temperature sludge, which will increase the viscosity of the engine oil, block the oil passage, and cause the engine to fail to work normally. Therefore, gasoline engine oil ...

Claims

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Application Information

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IPC IPC(8): C10M129/78C10M169/04C07C67/26C07C67/29C07C69/84C07C69/732C07C69/78C07C69/67C10N40/25C10N30/04C10N30/10C10N30/06
CPCC10M129/78C10M169/045C07C67/26C07C67/29C10M2207/301C10M2203/1025C10M2219/046C10M2219/044C10M2219/089C10M2215/086C10M2223/045C10M2215/064C10M2215/065C10M2219/06C10M2207/281C07C69/84C07C69/732C07C69/78C07C69/67
Inventor 刘依农段庆华马静
Owner CHINA PETROLEUM & CHEM CORP