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Composite soap-based lubricating grease composition and preparation method thereof

A technology of grease composition and complex soap, which is applied in the field of grease, can solve the problems of short grease life, short oxidation induction period, and high production cost, and achieve the effects of long wear resistance, wide promotion value, and good water resistance

Active Publication Date: 2021-03-19
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there are problems such as high preparation cost, high energy consumption, short grease life and short oxidation induction period in complex soap-based grease

Method used

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  • Composite soap-based lubricating grease composition and preparation method thereof
  • Composite soap-based lubricating grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 280g of 12-hydroxystearic acid and 70g of azelaic acid and 1500g of HVI650 (100°C kinematic viscosity 11.8mm 2 / s) put into a 5L reactor, raise the temperature to 85-90°C, keep the temperature constant for 30 minutes, slowly add 19g of lithium hydroxide solution and 38g of magnesium hydroxide suspension at 102-105°C, the addition time is controlled within 2 hours, and the addition of alkali is completed Raise the temperature to 130-135°C, keep the temperature constant for 30 minutes, raise the temperature to 180°C, keep the temperature constant for 10 minutes, then add 500g of HVI650 to cool, the temperature drops to 130°C, add the remaining 600g of PAO10 (100°C kinematic viscosity 9.8mm 2 / s) Adjust the consistency, stir evenly, and squeeze the oil three times to get the finished product.

Embodiment 2

[0032] With the 12-hydroxystearic acid of 280g and the HVI500 of 70g sebacic acid and 1500g (100 ℃ kinematic viscosity 9mm 2 / s) into a 5L reactor, heat up to 80-90°C, keep the temperature constant for 15 minutes, slowly add 14g of lithium hydroxide solution and 55g of calcium hydroxide suspension at 104-107°C, and control the addition time within 1.5-3 hours. After the alkali is finished, heat up to 130-135°C, hold the temperature for 35 minutes, raise the temperature to 175°C, hold the temperature for 5 minutes, then add 600g of HVI650 to cool, and the temperature drops to 125°C, add the remaining 600g of 150BS (100°C kinematic viscosity 32mm 2 / s) Adjust the consistency, stir evenly, and squeeze the oil three times to get the finished product.

Embodiment 3

[0034]Put 280g of 12-hydroxystearic acid, 70g of sebacic acid and 1500g of HVI650 into a 5L reactor, raise the temperature to 90-95°C, keep the temperature constant for 25 minutes, slowly add 10g of lithium hydroxide solution and 70g of hydroxide For the zinc suspension, the addition time is controlled within 2-3 hours. After adding the alkali, the temperature is raised to 130-135°C, and the temperature is kept constant for 58 minutes. Then the temperature is raised to 170°C, and the temperature is kept constant for 5 minutes. Add the remaining 600g of ester oil (100°C kinematic viscosity 30mm 2 / s) Adjust the consistency, stir evenly, and squeeze the oil three times to get the finished product.

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Abstract

The invention provides a composite soap-based lubricating grease composition. The composition comprises base oil. The composition comprises the following components in parts by weight: 5-25 parts of athickening agent and 75 to 95 parts of the base oil, wherein the thickening agent is prepared by saponifying raw materials including 12-hydroxystearic acid, C6-C16 binary acid, lithium hydroxide anddivalent metal hydroxide, and a mass ratio of the lithium hydroxide to the divalent metal hydroxide is 1: 10 to 10: 1. The prepared lubricating grease has good water resistance, high temperature resistance, wear resistance and long oxidation induction period; in particular, the service life of the lubricating grease is 2-3 times the service life of common composite metal soap-based lubricating grease; and a low-temperature compounding process is adopted, so the lubricating grease has a high dropping point, greatly reduces working hours and energy consumption and has wide popularization value.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a compound soap-based lubricating grease composition and a preparation method. Background technique [0002] In modern industry, lubricating grease is widely used. With the continuous development of industrialization, there are higher and higher requirements for the performance of lubricating grease. Complex soap-based lubricating grease has various excellent properties and meets various It is widely used in various industries at present. [0003] Complex soap-based grease belongs to the range of high-temperature grease. It has a wider service temperature than single soap or mixed soap. Therefore, the finished product prepared with complex soap has a larger application space. The complex soap-based grease on the market is mainly lithium complex Or lithium calcium complex grease. At present, the amount of lithium in the complex lithium-calcium-based grease in the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/02C10M177/00C10N50/10C10N30/08C10N30/06C10N30/10
CPCC10M169/02C10M177/00C10M2207/1285C10M2207/1276C10M2205/0206C10M2207/2805C10M2203/1006
Inventor 刘志颖周钰储友双赵伟
Owner CHINA PETROLEUM & CHEM CORP
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