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Petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating 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: 2020-11-06
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-grade product extreme pressure composite lithium-based lubricating grease and preparation method thereof
  • Petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease and preparation method thereof
  • Petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease and preparation method thereof

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preparation example Construction

[0037] A method for preparing a first-class extreme-pressure lithium-based composite lubricating grease of a petrochemical industry standard, 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, add appropriate amount of water at intervals during the reaction process, and obtain saponified products;

[0039] Step 2: Heat up the saponified product to 230-235°C, keep it for 5-10 minutes, cool it naturally to 90-110°C, and then mix it with tackifier, composite antioxidant, extreme pressure and anti-wear agent, self-repair additive, corrosion inhibitor Mix and stir with synthetic base oil evenly, and get the finished product 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 parts of ...

Embodiment 1

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

[0051] Among them, the paraffin base oil is selected from 1-400SN. Synthetic base oil is selected from synthetic hydrocarbon base oil. The higher fatty acid is selected from 12-hydroxystearic acid. The 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 additive is a mixture of 2 parts borate and 2 parts molybdenum...

Embodiment 2

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

[0057] Among them, the paraffin base oil is selected from 1-500SN. Synthetic base oil is selected from synthetic ester base oil. The higher fatty acid is selected from 12-hydroxystearic acid. The 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 dialkyldithio...

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Abstract

The invention relates to petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease and a preparation method thereof. The petrochemical industry standard first-grade product extreme pressure composite lithium-based lubricating grease is prepared from the following raw materials in parts by weight: 30 to 70 parts of paraffin-based base oil; 10 to40 parts of synthetic base oil; 8 to 14 parts of higher fatty acid, 1.5 to 3.5 parts of composite acid, 1.5 to 3.5 parts of lithium hydroxide monohydrate, 1 to 3 parts of tackifier, 3 to 6 parts of extreme pressure anti-wear agent, 0.5 to 3.5 parts of self-repairing additive, 0.2 to 1.2 parts of composite antioxidant and 0.1 to 0.8 part of corrosion inhibitor. The petrochemical industry standardfirst-grade product extreme pressure composite lithium-based lubricating grease has excellent comprehensive performance, has a certain self-repairing function, has an ultra-long service life, and canplay a long-term lubricating role by one time of fat liquoring.

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 method for preparing 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. Grease, as an important sub-category of lubricants, has also been gradually transformed and upgraded, with better comprehensive performance. Excellent extreme pressure lithium complex grease is used more and more widely, especially the long-life petrochemical industry standard first-class extreme pressure lithium complex grease is gradually favored by people. The first-class extreme pressure lithium complex grea...

Claims

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Application Information

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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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