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A kind of metal processing fluid base oil and preparation method thereof

A technology for metal working fluids and base oils, applied in the fields of additives, petroleum industry, organic chemistry, etc., can solve the problems of cumbersome preparation process steps, accelerated ester hydrolysis, deterioration of hydrolysis stability of lubricating oil, etc., and achieves good hydrolysis stability, The effect of mild reaction conditions and simple preparation steps

Active Publication Date: 2018-08-31
四会市格鲁森润滑技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, vegetable oil is used as raw material to prepare lubricating oil additives through phosphating, phosphorus nitriding, boronizing, etc., but the inorganic acid generated by the hydrolysis of phosphorus or boron-containing compounds will accelerate the hydrolysis of esters and make the hydrolysis of lubricating oil Stability deteriorates, and its preparation process steps are cumbersome

Method used

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  • A kind of metal processing fluid base oil and preparation method thereof
  • A kind of metal processing fluid base oil and preparation method thereof
  • A kind of metal processing fluid base oil and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The first step: using soybean oil fatty acid methyl ester as a raw material, continuously stirring at room temperature, and gradually adding a 2-fold molar ratio of hypobromous acid (HBrO) solution dropwise, and reacting for 3 hours.

[0029] Step 2: Weigh 2-mercaptothiazole with the same molar amount of hypobromous acid and 0.5% of the mass of fatty acid methyl ester in the first step, dissolve them in ethanol solution, and add the first step under constant stirring. In the reaction solution obtained in one step, react for 3 hours to obtain soybean oil fatty acid methyl ester mercaptothiazole, wash the obtained product with ethanol, and dry to remove the ethanol, which can be used as the base oil of metal working fluid.

Embodiment 2

[0031] The first step: using palm oil fatty acid methyl ester as a raw material, continuously stirring at room temperature, and gradually adding a 3-fold molar ratio of hypochlorous acid (HClO) solution, and reacting for 2 hours.

[0032] Step 2: Weigh 2-mercaptobenzothiazole in the same molar amount as HClO in the first step and sodium hydroxide whose mass is 1.0% of the mass of fatty acid methyl ester, dissolve in ethanol solution, and add the first step under constant stirring. In the reaction solution obtained in one step, react for 2 hours to obtain palm oil fatty acid methyl ester mercaptobenzothiazole, wash the obtained product with ethanol, and dry to remove the ethanol, which can be used as the base oil of metal working fluid.

Embodiment 3

[0034] The first step: using rapeseed oil fatty acid methyl ester as a raw material, continuously stirring at room temperature, and gradually adding 4 times the molar ratio of hypoiodic acid (HIO) solution dropwise, and reacting for 3 hours.

[0035] The second step: take 2-mercaptobenzothiazole in the same molar amount as HIO in the first step and 2.0% sodium hydroxide of the quality of the fatty acid methyl ester, dissolve in the ethanol solution, and under constant stirring, add the first In the reaction solution obtained in one step, the rapeseed oil fatty acid methyl ester mercaptothiazole is prepared by reacting for 4 hours, the obtained product is washed with ethanol, and the ethanol is dried to remove the ethanol, which can be used as the base oil of the metal working fluid.

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Abstract

The invention discloses base oil for a metal working fluid (or metal working oil) and a preparation method of the base oil. Plant oil fatty acid methyl ester is taken as a raw material, mercaptothiazole groups are introduced to double bonds, and a plant oil fatty acid methyl ester mercaptothiazole derivative is synthesized to serve as the base oil for the metal working fluid (or metal working oil) or an antiwear agent. By comparison with other plant oil type base oil, the hydrolytic stability of the plant oil fatty acid methyl ester mercaptothiazole derivative is good. The preparation steps are simple, and the reaction conditions are mild.

Description

【Technical field】 [0001] The invention relates to a metal working fluid base oil and a preparation method thereof, in particular to a metal working fluid base oil prepared by using vegetable fatty acid esters as raw materials, and belongs to the technical field of metal working fluids. 【Background technique】 [0002] In the metalworking industry, metalworking fluids are widely used for lubrication, cooling, cleaning, rust prevention, etc., to ensure the quality of workpiece processing and prolong tool life. Metalworking oil (liquid) usually takes mineral oil as the base oil, and contains various additives (mostly petrochemical products) such as antiwear agent, rust inhibitor, bactericide, etc. However, on the one hand, these mineral oils and additives are non-renewable resources, and on the other hand, mineral oils have poor biodegradability, which is not conducive to environmental protection. The base oil based on vegetable oil is not only regenerable, but also has good bi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M135/36C07D277/36C07D285/125C10N40/20
CPCC07D277/36C07D285/125C10M135/36C10N2040/20
Inventor 姚军许世海
Owner 四会市格鲁森润滑技术有限公司
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