Calcium-carbonate-containing high-performance composite calcium-sulfonate-based lubricating grease and preparation method thereof

A technology for compound calcium sulfonate and synthesis of calcium sulfonate, which is applied in lubricating compositions, petroleum industry, etc., can solve the problem that compound calcium sulfonate-based grease cannot have anti-aging hardening and high temperature resistance at the same time, and achieve formula components Less, improve high temperature performance, good extreme pressure effect

Active Publication Date: 2019-05-17
广西碳酸钙产业化工程院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to propose a calcium carbonate-containing high-performance composite calcium sulfonate-based lubricating grease and a preparation method thereof, so as to solve the problem that

Method used

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  • Calcium-carbonate-containing high-performance composite calcium-sulfonate-based lubricating grease and preparation method thereof
  • Calcium-carbonate-containing high-performance composite calcium-sulfonate-based lubricating grease and preparation method thereof
  • Calcium-carbonate-containing high-performance composite calcium-sulfonate-based lubricating grease and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0042] Example 1:

[0043] A preparation method of calcium carbonate-containing high-performance calcium sulfonate-based grease includes the following steps:

[0044] S1: At room temperature, weigh 350mgKOH / g of high-alkaline calcium sulfonate 1000g and 150BS base oil 1300g into the reactor and stir and mix, continue to stir and heat to 95°C to obtain mixture A;

[0045] S2: Add 10g of dodecyl hydroxystearic acid, 12g of dodecylbenzene sulfonic acid, and 100g of water to the mixture A to mix, and then quickly add 20g of acetic acid after the mixture is evenly mixed. Keep the system at 95°C and continue to stir for 1.5 hours to obtain a viscosity Mixture B;

[0046] S3: Add 150g of modified nano-calcium carbonate to viscous mixture B, keep at 95°C and keep stirring for 15min, then increase the temperature to 180°C and keep stirring for 20min to carry out the dehydration reaction. After dehydration, add 150g of 150BS base oil to cool down to 100°C. After grinding and homogenizing, the ...

Example Embodiment

[0059] Example 2:

[0060] A preparation method of calcium carbonate-containing high-performance calcium sulfonate-based grease includes the following steps:

[0061] S1: At room temperature, weigh 350mgKOH / g of high alkali value calcium sulfonate 1000g and 150BS base oil 1400g into the reactor and stir and mix, continue to stir and heat to 95°C to obtain mixture A;

[0062] S2: Add 15g of dodecyl hydroxystearic acid, 15g of dodecylbenzene sulfonic acid, and 120g of water to the mixture A and mix, and then quickly add 28g of acetic acid after the mixture is evenly mixed. Keep the system at 95°C and continue stirring for 1.5 hours to obtain a viscous Mixture B;

[0063] S3: Add 200g of modified nano-calcium carbonate to viscous mixture B, keep at 95°C and keep stirring for 15min, then increase the temperature to 180°C and keep stirring for 20min to carry out the dehydration reaction. After dehydration, add 220g of 150BS base oil to cool to 100°C. After grinding and homogenizing, the c...

Example Embodiment

[0076] Example 3:

[0077] A preparation method of calcium carbonate-containing high-performance calcium sulfonate-based grease includes the following steps:

[0078] S1: At room temperature, weigh 450mgKOH / g of 1000g of high alkali value calcium sulfonate and 1100g of 150BS base oil into the reactor and stir and mix, continue to stir and heat to 95°C to obtain mixture A;

[0079] S2: Add 10g of dodecyl hydroxystearic acid, 11g of dodecylbenzene sulfonic acid, and 100g of water to the mixture A and mix, and then quickly add 26g of acetic acid after the mixture is evenly mixed. Keep the system at 95°C and continue to stir for 1.5 hours to obtain a viscosity Mixture B;

[0080] S3: Add 180g of modified nano-calcium carbonate to viscous mixture B, keep at 95°C and keep stirring for 15min, then increase the temperature to 180°C and keep stirring for 20min to carry out the dehydration reaction. After dehydration, add 180g of 150BS base oil to cool to 100°C. After grinding and homogenizing...

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Abstract

The invention discloses calcium-carbonate-containing high-performance composite calcium-sulfonate-based lubricating grease and a preparation method thereof, and belongs to the technical field of lubricant preparation. The calcium-carbonate-containing high-performance composite calcium-sulfonate-based lubricating grease is prepared from the following raw materials in parts by weight: 100 parts of calcium sulfonate with a high alkali value, 120-170 parts of base oil, 1-1.5 parts of alkyl benzene sulfonic acid, 0.5-2 parts of fatty acid, 1-10 parts of acetic acid, 5-15 parts of water and 15-25 parts of modified nano calcium carbonate, wherein the modified nano calcium carbonate has the advantages such as a good cleaning effect, resistance to low-temperature corrosion and resistance to abrasion and friction during serving as an additive of the lubricating grease. The composite calcium-sulfonate-based lubricating grease prepared through the method has good extreme pressure, abrasion resistance, high and low temperature properties and colloidal stability, and further has excellent performance of hardening resistance, high temperature resistance and avoidance of oil throwing.

Description

technical field [0001] The invention relates to the technical field of lubricant preparation, in particular to a calcium carbonate-containing high-performance composite calcium sulfonate-based lubricating grease and a preparation method thereof. Background technique [0002] As an independent industrial part of lubricants, grease is widely used in industrial machinery, agricultural machinery, transportation industry, Electronic information industry and other fields. Grease is mainly made by thickening base oil with thickener and adding additives. According to the type of thickener used, it can be divided into metal soap-based grease, organic grease, hydrocarbon-based grease and inorganic grease. Among metal soap base greases, complex calcium sulfonate base greases are the most widely used. [0003] Calcium sulfonate-based grease combines the performance advantages of lithium-complex grease, aluminum-composite grease and calcium-complex grease, and is known for its excellen...

Claims

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Application Information

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IPC IPC(8): C10M169/04C08F220/18C08F216/16C08F222/06C10N50/10C10N30/08C10N30/06
Inventor 覃玲意童张法周文英钟玲萍蒙杨平陈珍明苏耀恩
Owner 广西碳酸钙产业化工程院有限公司
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