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Gasoline engine oil composition and its production method

A gasoline engine oil and composition technology, which is applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems that the gasoline engine oil composition cannot fully meet the requirements, concerns about anti-rust performance, shortened engine life of the engine, etc.

Active Publication Date: 2020-11-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the gasoline engine oil composition manufactured by using the prior art detergent and dispersant cannot fully meet the requirements of this type of higher specification product
[0006] In addition, in addition to the adverse effects of deposits, the corrosion of the engine will also seriously shorten the life of the engine, and the corrosion of some key parts will also affect the working performance of the engine to a large extent
The prior art has devoted considerable experience to the detergency performance of gasoline engine oil compositions, but not enough attention has been paid to its antirust performance

Method used

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  • Gasoline engine oil composition and its production method
  • Gasoline engine oil composition and its production method
  • Gasoline engine oil composition and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Preparation of polyether. Add a mixture of 220g nonylphenol and 2.0g potassium hydroxide into the reactor, replace the air in the reactor with nitrogen, seal the reactor and heat it to 110°C, reduce the pressure to 2000 Pa, and evaporate the water , Introduce nitrogen into the reactor to restore normal pressure, raise the temperature to about 140°C, and continuously press 696g of propylene oxide into the reactor until the pressure does not change any more. After the reaction was completed, the reactant was cooled to room temperature, neutralized with acetic acid, and washed with water to remove the catalyst. The water and volatile matter are evaporated under reduced pressure to obtain the nonylphenol polyether product.

[0053] The chemical formula of the polyether obtained is:

[0054]

[0055] 2) Add 59g of sodium methoxide to 898g of polyether obtained in step 1) to react to generate sodium polyether alcohol, then add 76.5g of allyl chloride, the reaction tim...

Embodiment 2

[0062] 1) Preparation of polyether. Add a mixture of 220g nonylphenol and 2.0g potassium hydroxide into the reactor, replace the air in the reactor with nitrogen, seal the reactor and heat it to 110°C, reduce the pressure to 2000 Pa, and evaporate the water , feed nitrogen into the reactor to restore normal pressure, raise the temperature to about 140°C, and continuously press 864g of butylene oxide into the reactor until the pressure does not change any more. After the reaction was completed, the reactant was cooled to room temperature, neutralized with acetic acid, and washed with water to remove the catalyst. The water and volatile matter are evaporated under reduced pressure to obtain the nonylphenol polyether product.

[0063]

[0064] 2) Add 44g of sodium hydroxide to 1066g of polyether obtained in step 1) to react to generate sodium polyether alcohol, then add 76.5g of allyl chloride, the reaction time is 2-10h, and the reaction temperature is 50-150°C. After the r...

Embodiment 3

[0071] 1) Preparation of polyether. Add a mixture of 220g nonylphenol and 2.0g potassium hydroxide into the reactor, replace the air in the reactor with nitrogen, seal the reactor and heat it to 110°C, reduce the pressure to 2000 Pa, and evaporate the water , Introduce nitrogen into the reactor to restore normal pressure, raise the temperature to about 140°C, and continuously press 696g of propylene oxide into the reactor until the pressure does not change any more. After the reaction was completed, the reactant was cooled to room temperature, neutralized with acetic acid, and washed with water to remove the catalyst. Moisture and volatile matter are evaporated under reduced pressure to obtain the nonylphenol polyether product.

[0072]

[0073] 2) Add 59g of sodium methylate to 898g of polyether obtained in step 1) to react to generate sodium polyether alcohol, then add 103.5g of 5-chloro-1,3-pentadiene, the reaction time is 2-10h, the reaction temperature At 50-150°C, a...

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Abstract

The invention provides a gasoline engine oil composition and a preparation method thereof. The gasoline engine oil composition disclosed by the invention is prepared from a polyether amine compound, an antioxidant, a metallic detergent, a ZDDP (Zinc Dithiophosphate), organic molybdenum, an ash-free friction modifier and the balance of lubricant basic oil, wherein the structure of the polyether amine compound is as follows: the formula (1) is shown in the description, wherein the definitions of various groups are seen in the description. The gasoline engine oil composition disclosed by the invention has the advantages of very excellent antioxidant property, wear resistance and cleanness, and moreover, requirements of gasoline engine oil products of specifications including SL / GF-3, SM / GF-4and SN / GF-5 or above can be met.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a gasoline engine oil composition. Background technique [0002] Unsaturated olefins, aromatics and a small amount of sulfur-containing compounds in lubricating base oils can easily react with oxygen to form colloids, and eventually form carbon deposits, especially in key parts such as intake valves, pistons, oil pans, and combustion chambers Accelerates the formation of engine deposits. Seriously affect the working performance of the engine, resulting in difficulty in starting the engine, unstable idling speed, poor drivability, poor acceleration, serious power loss and other problems, resulting in expensive maintenance costs. A lubricating oil composition having detergent performance (deposit formation inhibiting performance) was produced by adding a detergent and dispersant to a lubricating oil base oil. The lubricating oil composition with detergency can effectively reduce c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/333C10N30/06C10N30/10C10N30/04C10N40/25
CPCC08G65/2612C08G65/324C08G65/33306C08G65/33396C08G65/337C08G65/338C08G2650/50C10M149/14C10M169/044C10M2203/1025C10M2207/026C10M2215/064C10M2215/08C10M2217/06C10M2219/044C10M2219/046C10M2219/068C10M2223/047C10N2030/04C10N2030/06C10N2030/10C10N2040/25C10N2010/12C10N2020/02C10N2010/04
Inventor 成欣段庆华黄作鑫张建荣
Owner CHINA PETROLEUM & CHEM CORP
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