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Antirust high-temperature lubricating grease composition

A lubricating grease and high temperature technology, applied in lubricating compositions, petroleum industry, etc., can solve problems such as not being able to meet the performance requirements of anti-seize, and achieve the effect of excellent high-temperature anti-seize performance and excellent protection performance

Inactive Publication Date: 2014-11-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The products mentioned in the above patents cannot meet the performance requirements of anti-jamming in high temperature environment

Method used

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  • Antirust high-temperature lubricating grease composition
  • Antirust high-temperature lubricating grease composition
  • Antirust high-temperature lubricating grease composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0047] The mineral base oil that mass ratio is 20% joins in the kettle, is warming up to 85 ℃, adds the lauryl hydroxystearic acid that the mass ratio is 5% and the azelaic acid that the mass ratio is 1%, then adds by 5 times water Dissolve lithium hydroxide with a mass ratio of 1%, and raise the temperature to 105-115° C. for 3 hours. Then the temperature is raised for dehydration, and when the temperature is raised to 160° C., 1% diisooctyldiphenylamine is added in a mass ratio, and the maximum temperature is 208° C. Adding mass ratio is 15% mineral oil to lower the temperature, when the temperature drops below 150°C, add the remaining mass ratio of 5% mineral oil, 23% double ester and 30% poly-alpha olefin synthesis Oil, add 2% barium petroleum sulfonate, 8% graphite, 10% copper powder, 8% aluminum powder, 5% boron nitride, 2% polymethacrylate when the temperature is lower than 90°C . Finally, grind and homogenize on three-axis rollers, and measure the grease performance....

example 2

[0054] The mineral base oil that is 40% in mass ratio is added in the still, is heated up to 85 ℃, adds the dodecyl hydroxystearic acid and the sebacic acid of 9.3% in mass ratio, then adds the 2.6 that dissolves by 5 times of water % lithium hydroxide, the temperature was raised to 105-115°C for 2 hours. Then heat up for dehydration, add 2% diphenylamine when the temperature rises to 150°C, and the maximum temperature is 220°C. Add 20% poly-alpha olefin synthetic oil to cool down, add the remaining 25% dipentaerythritol ester when the temperature drops below 150°C, add 5% barium petroleum sulfonate, 1% 2,5 -Dimercapto-1,3,4-thiadiazole dimer, 10% graphite, 5% copper powder, 5% aluminum powder, 10% boron nitride, 1% ethylene-propylene copolymer, 5% tetrachloroethylene. Finally, grind and homogenize on three-axis rollers, and measure the grease performance.

[0055] The performance of the lubricating grease that process formula of the present invention makes is listed in tabl...

example 3

[0060] Add mineral base oil with a mass ratio of 20% into the kettle, heat up to 85°C, add 3% lauryl hydroxystearic acid and 1% sebacic acid with a mass ratio, and then add 0.8 % lithium hydroxide, the temperature was raised to 105-115°C for 2.5 hours. Then heat up for dehydration, add 2% phenyl-α-naphthylamine when the temperature rises to 150°C, and the maximum temperature is 200°C. Add 20.2% mineral oil to lower the temperature. When the temperature drops below 150°C, add the remaining 25% pentaerythritol ester and 30% poly-alpha olefin synthetic oil. When the temperature is lower than 90°C, add 5% barium petroleum sulfonate, 1 % Benzotriazole, 5% graphite, 5% copper powder, 5% aluminum powder, 8% boron nitride, 5% polymethacrylate, 3% trichloroethylene. Finally, grind and homogenize on three-axis rollers, and measure the grease performance.

[0061] The performance of the lubricating grease that process formula of the present invention makes is listed in table 3

[0062...

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Abstract

The invention relates to an antirust high-temperature lubricating grease composition. Composite lithium soap or bentonite is used as a thickener, ester oil, mineral oil and poly-alpha olefin synthetic oil are used as base oil, and an antioxidant, a corrosion and rust inhibitor, solid additives, a tackifier and the like are added. On the basis of the sum of the thickener and base oil, the antirust high-temperature lubricating grease composition comprises the following additives in percentage by weight: 1-2% of antioxidant, 2-10% of rust inhibitor, 5-10% of graphite, 10-25% of metal powder, 5-10% of boron nitride, 1-5% of tackifier and 0-5% of solvent. Due to the adoption of the appropriate feed proportioning, the lubricating grease has the advantages of excellent protecting property and excellent high-temperature seizing resistance.

Description

technical field [0001] The invention relates to a lubricating grease composition which is composed of base oil, thickener and additives and has excellent high-temperature performance and anti-rust performance. Background technique [0002] In chemical industry, petroleum, energy, transportation, pharmaceutical, textile, thermal power, metallurgy and other industries, bolts and other solid parts are often corroded and stuck, making disassembly difficult, which affects equipment inspection, maintenance and installation, resulting in waste of materials and manpower , In actual work, molybdenum disulfide lithium-based grease is often used as a substitute. Although it can play a certain effect, it cannot fully meet the application requirements. The main reasons for this phenomenon are as follows: one is that the equipment is rusted due to the influence of water vapor and other environmental conditions for a long time, and the other reason is that the equipment is stuck in a high-...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10N50/10C10N30/12
Inventor 郭振俊刘振国高艳青赵伟李倬
Owner CHINA PETROLEUM & CHEM CORP
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