Base oil for metal working fluid and preparation method of base oil

A metalworking fluid and base oil technology, applied in additives, petroleum industry, organic chemistry, etc., can solve the problems of cumbersome preparation process steps, accelerated ester hydrolysis, and deterioration of lubricating oil hydrolysis stability, achieving good hydrolysis stability, The effect of mild reaction conditions and simple preparation steps

Active Publication Date: 2016-06-29
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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  • Base oil for metal working fluid and preparation method of base oil
  • Base oil for metal working fluid and preparation method of base oil
  • Base oil for metal working fluid and preparation method of base oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The first step: using soybean fatty acid methyl ester as a raw material, continuously stirring at room temperature, gradually adding a 2-fold molar ratio of hypobromous acid (HBrO) solution dropwise, and reacting for 3 hours.

[0031] The second step: take by weighing 2-mercaptothiazole of the same molar amount as the hypobromous acid in the first step and 0.5% sodium hydroxide whose quality is the fatty acid methyl ester quality, dissolve in the ethanol solution, under constant stirring, add the second The reaction liquid obtained in one step is reacted for 3 hours to obtain soybean oil fatty acid methyl ester mercaptothiazole, the obtained product is washed with ethanol, dried to remove ethanol, and can be used as base oil for metalworking fluid.

Embodiment 2

[0033] The first step: using palm oil fatty acid methyl ester as a raw material, continuously stirring at room temperature, gradually adding a 3-fold molar ratio hypochlorous acid (HClO) solution dropwise, and reacting for 2 hours.

[0034] The second step: take by weighing the 2-mercaptobenzothiazole of the same molar amount as HClO in the first step and the sodium hydroxide whose quality is 1.0% of the fatty acid methyl ester quality, dissolve in the ethanol solution, under constant stirring, add the second The reaction liquid obtained in one step is reacted for 2 hours to obtain palm oil fatty acid methyl ester mercaptobenzothiazole, and the obtained product is washed with ethanol, dried to remove ethanol, and can be used as base oil for metalworking fluid.

Embodiment 3

[0036] The first step: taking rapeseed oil fatty acid methyl ester as a raw material, continuously stirring at room temperature, gradually adding a 4-fold molar ratio of hypoiodous acid (HIO) solution dropwise, and reacting for 3 hours.

[0037] The second step: take by weighing the 2-mercaptobenzothiazole of the same molar amount as HIO in the first step and the sodium hydroxide whose quality is 2.0% of the fatty acid methyl ester quality, be dissolved in the ethanol solution, under constant stirring, add the second The reaction liquid obtained in one step is reacted for 4 hours to obtain the rapeseed oil fatty acid methyl ester mercaptothiazole, and the obtained product is washed with ethanol, dried to remove the ethanol, and can be used as a metalworking fluid base oil.

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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 metalworking fluid base oil and a preparation method thereof, in particular to a metalworking fluid base oil prepared from vegetable fatty acid esters, and belongs to the technical field of metalworking fluids. 【Background technique】 [0002] In the metal processing industry, metal processing fluids are widely used to lubricate, cool, clean, and prevent rust, so as to ensure the processing quality of workpieces and prolong tool life. Metal processing oil (fluid) usually uses mineral oil as the base oil, and contains various additives such as anti-wear agents, anti-rust agents, and fungicides (mostly petrochemical products). However, on the one hand, these mineral oils and additives are non-renewable resources; on the other hand, mineral oils have poor biodegradability, which is not conducive to environmental protection. The base oil based on vegetable oil can not only be regenerated, but also has better biodegradability, a...

Claims

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Application Information

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Patent Type & Authority Applications(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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