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Petrochemical industry standard first-class extreme pressure lithium complex grease and preparation method thereof

A technology of complex lithium base and grease, applied in the field of grease, can solve the problem of unable to meet the performance requirements of extreme pressure lithium complex grease, and achieve the effect of ultra-long service life and excellent comprehensive performance

Active Publication Date: 2022-07-19
东莞太平洋博高润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the market share of such high-end lithium complex grease products is mainly occupied by foreign brands, and domestic independent brands are still mainly ordinary qualified products, which cannot meet the performance requirements of the first-class extreme pressure lithium complex grease that meets the petrochemical industry standard.

Method used

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  • Petrochemical industry standard first-class extreme pressure lithium complex grease and preparation method thereof
  • Petrochemical industry standard first-class extreme pressure lithium complex grease and preparation method thereof
  • Petrochemical industry standard first-class extreme pressure lithium complex grease and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0037] A method for preparing a petrochemical industry standard first-class extreme-pressure complex lithium-based grease, comprising the steps of:

[0038] Step 1: Mix and stir the paraffin base oil, higher fatty acid, lithium hydroxide monohydrate, and compound acid evenly, heat to 135-145° C., react for 3-4 hours, and add appropriate amount of water at intervals during the reaction to obtain saponified products;

[0039] Step 2: Raise the temperature of the saponified compound to 230-235°C, keep it for 5-10min, and naturally cool it to 90-110°C, and then mix it with tackifier, composite antioxidant, extreme pressure anti-wear agent, self-healing additive and corrosion inhibitor. Mixed with synthetic base oil and stirred evenly, and the finished product is obtained after grinding;

[0040] Among them, in parts by weight, the addition amount of each raw material is: 30-70 parts of paraffin base oil, 10-40 parts of synthetic base oil, 8-14 parts of higher fatty acid, 1.5-3.5 p...

Embodiment 1

[0050] The petrochemical industry standard first-class extreme pressure lithium complex grease prepared in this example is counted in parts by weight, and the prepared raw materials include: 51.22 parts of paraffin-based base oil, 25 parts of synthetic base oil, 10 parts of higher fatty acids, 2.4 parts of complex Acid, 2.38 parts lithium hydroxide monohydrate, 2 parts tackifier, 4 parts extreme pressure antiwear agent, 2 parts self-healing additive, 0.6 part composite antioxidant, 0.4 part corrosion inhibitor.

[0051] Among them, the paraffin base oil is 1-400SN. Synthetic base oil is made of synthetic hydrocarbon base oil. 12-hydroxystearic acid is selected as the higher fatty acid. 2.4 parts complex acid is a mixture of 1.2 parts sebacic acid, 0.6 parts salicylic acid and 0.6 parts boric acid. The tackifier is polyisobutylene. The 4 parts extreme pressure antiwear agent is a mixture of 2 parts borate and 2 parts molybdenum dialkyldithiocarbamate. 0.6 part of composite ...

Embodiment 2

[0056] The petrochemical industry standard first-class extreme pressure lithium complex grease prepared in this example is counted in parts by weight, and the prepared raw materials include: 51.22 parts of paraffin-based base oil, 25 parts of synthetic base oil, 10 parts of higher fatty acids, 2.4 parts of complex Acid, 2.38 parts lithium hydroxide monohydrate, 2 parts tackifier, 4 parts extreme pressure antiwear agent, 2 parts self-healing additive, 0.6 part composite antioxidant, 0.4 part corrosion inhibitor.

[0057] Among them, the paraffin base oil is 1-500SN. Synthetic base oil is made of synthetic ester base oil. 12-hydroxystearic acid is selected as the higher fatty acid. 2.4 parts complex acid is a mixture of 1.2 parts sebacic acid, 0.6 parts salicylic acid and 0.6 parts boric acid. The tackifier is polymethacrylate. The 4 parts extreme pressure antiwear agent is a mixture of 2 parts borate and 2 parts zinc dialkyldithiophosphate. 0.6 part of composite antioxidant...

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Abstract

The invention relates to a petrochemical industry standard first-class extreme-pressure composite lithium-based lubricating grease and a preparation method thereof. The raw materials of the petrochemical industry standard first-class extreme pressure lithium complex grease include, in parts by weight: 30-70 parts of paraffin-based base oil, 10-40 parts of synthetic base oil, 8-14 parts of higher fatty acids, 1.5-3.5 parts of Compound acid, 1.5-3.5 parts of lithium hydroxide monohydrate, 1-3 parts of tackifier, 3-6 parts of extreme pressure anti-wear agent, 0.5-3.5 parts of self-healing additive, 0.2-1.2 parts of composite antioxidant, 0.1- 0.8 parts corrosion inhibitor. The above petrochemical industry standard first-class extreme pressure lithium complex grease has excellent comprehensive performance, and has a certain self-healing function, with a long service life, and one-time grease can play a long-term lubrication role.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a petrochemical industry standard first-class extreme pressure composite lithium-based grease, and a preparation method of a petrochemical industry standard first-class extreme pressure composite lithium-based grease. Background technique [0002] In recent years, with the improvement of national environmental protection requirements and the upgrading of industrial technology, higher requirements have been placed on the performance and service life of lubricants. As an important sub-category of lubricants, greases have been gradually transformed and upgraded, with better comprehensive performance. Excellent extreme pressure lithium complex grease is more and more widely used, especially the long-life petrochemical industry standard first-class extreme pressure lithium complex grease is gradually favored by people. The petrochemical industry standard first-class extreme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N30/06C10N30/12C10N30/10C10N40/02C10N10/04C10N10/12
CPCC10M169/00C10M177/00C10M2205/163C10M2207/2805C10M2203/065C10M2203/003C10M2207/128C10M2205/026C10M2209/084C10M2207/127C10M2207/144C10M2201/087C10M2201/062C10M2223/045C10M2227/09C10M2219/022C10M2219/106C10M2215/223
Inventor 曾志丁欧博明杨冉张庆荣罗成明林成钦
Owner 东莞太平洋博高润滑油有限公司
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