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Oil-soluble molybdenum alkene lubricating agent and preparation method thereof

An olefin lubricant, oil-soluble technology, applied in the field of oil-soluble molybdenum olefin lubricant and its preparation, can solve the problems of use restrictions, achieve the effect of reducing the friction coefficient and saving fuel

Inactive Publication Date: 2017-07-18
苏州金钼润成润滑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Graphite is an anti-wear lubricant with excellent performance and high temperature resistance; if graphite is used in lubricating oil, it will greatly improve the anti-wear and anti-friction characteristics of the lubricating oil, and effectively protect the engine. However, since graphite is a solid, in lubricating oil use is restricted

Method used

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Examples

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preparation example Construction

[0018] The preparation method of oil-soluble molybdenum olefin lubricant of the present invention comprises the following steps:

[0019] 1) Synthesis of oxidized carbon black

[0020] Put carbon black, concentrated sulfuric acid and concentrated hydrochloric acid in a container, react at 40°C-50°C under sealed conditions for 2-3 hours, then wash with alkali and water, adjust pH=6.5--7, add potassium permanganate , continue to react at 90-100°C for 3-4 hours, then vacuum filter to obtain a precipitate, wash with hydrogen peroxide, wash with water until neutral, and obtain a brown paste which is graphite oxide; carbon black, concentrated sulfuric acid, concentrated hydrochloric acid, permanganese Potassium acid weight ratio = 1:3~5:3~5:7~10;

[0021] 2) Synthesis of oil-soluble molybdenum olefin lubricant

[0022] Mix the above-prepared graphite oxide with sodium molybdate and butylamine, stir evenly, and react for 4-5 hours at 90-100°C and a pressure of 0.1MPa; cool to 50-60...

Embodiment 1

[0028] 1) Synthesis of oxidized carbon black

[0029] Put carbon black, concentrated sulfuric acid and concentrated hydrochloric acid in a container, react at 50°C under sealed conditions for 2 hours, then wash with alkali and water, adjust the pH to 6.5, add potassium permanganate, and continue the reaction at 100°C 3 hours, then vacuum filtration to obtain a precipitate, washed with hydrogen peroxide, and washed with water until neutral, and the brown paste obtained is graphite oxide;

[0030] Carbon black: concentrated sulfuric acid: concentrated hydrochloric acid: potassium permanganate = 1:4:4:8 (weight ratio)

[0031] 2) Synthesis of oil-soluble molybdenum olefin lubricant

[0032] Mix 5 grams of graphite oxide prepared above with 25 grams of sodium molybdate and 75 grams of butylamine, stir evenly, and react for 4 hours at a temperature of 90°C and a pressure of 0.1MPa; cool to 50°C, and add 75 grams of tert-octylamine , increase the temperature to 180°C, and continue...

Embodiment 2

[0035] 1) Synthesis of oxidized carbon black

[0036] Put carbon black, concentrated sulfuric acid, and concentrated hydrochloric acid in a container, and react for 2.5 hours under sealed conditions at 40°C, then wash with alkali and water, adjust the pH to 7, add potassium permanganate, and continue the reaction at a temperature of 90°C 3.5 hours, then vacuum filtration to obtain a precipitate, wash with hydrogen peroxide, and wash with water until neutral, and obtain a brown paste that is graphite oxide;

[0037] Carbon black: concentrated sulfuric acid: concentrated hydrochloric acid: potassium permanganate = 1:5:5:10 (weight ratio)

[0038] 2) Synthesis of oil-soluble molybdenum olefin lubricant

[0039] Mix 10 grams of graphite oxide prepared above with 60 grams of sodium molybdate and 160 grams of butylamine, stir evenly, and react for 5 hours at a temperature of 100°C and a pressure of 0.1MPa; cool to 60°C, and add 160 grams of tert-octylamine , increase the temperatu...

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Abstract

The invention discloses an oil-soluble molybdenum alkene lubricating agent and a preparation method thereof. The oil-soluble molybdenum alkene lubricating agent is prepared from graphite oxide, sodium molybdate, butyl amine and tert-octylamine, wherein a weight ratio of oxidized black to the sodium molybdate to the butyl amine to the tert-octylamine is 1:(5-8):(15-20):(15-20). The oxidized black is prepared by reaction of carbon black, concentrated sulfuric acid, concentrated hydrochloric acid and potassium permanganate. The additive disclosed by the invention is an environment-friendly molybdenum alkene lubricating agent, is a friction modifier, an anti-wear agent and an antioxidant of lubricating oil, particularly lubricating oil used by an internal combustion engine, and has an obvious oil-saving effect. Moreover, due to the absence of sulfur, phosphorus and chlorine, the additive has the advantages of energy conservation and environment friendliness.

Description

technical field [0001] The invention relates to a lubricant, in particular to an oil-soluble molybdenum lubricant and a preparation method thereof. Background technique [0002] Graphite is an anti-wear lubricant with excellent performance and high temperature resistance; if graphite is used in lubricating oil, it will greatly improve the anti-wear and anti-friction characteristics of the lubricating oil, and effectively protect the engine. However, since graphite is a solid, in lubricating oil use is restricted. [0003] Organic molybdenum is the top anti-friction agent used in lubricating oil. It not only has excellent anti-friction performance and excellent high-temperature oxidation resistance, but also has good oil solubility and dispersion properties; when combined with graphite in lubricating oil, it will Greatly improve the anti-wear, anti-friction, and anti-oxidation functions of lubricating oil, which can effectively extend the oil change interval and protect the ...

Claims

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Application Information

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IPC IPC(8): C10M139/00C10N30/06C10N30/08C10N30/10C10N40/25
CPCC10M139/00C10N2030/06C10N2030/08C10N2030/10C10N2030/54C10N2030/72C10N2040/25
Inventor 王严绪
Owner 苏州金钼润成润滑科技有限公司
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