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Method for preparing hydroxylated sulfonated castor oil borate

A technology for hydroxylation of sulfonated castor oil and sulfonated castor oil, which is applied in chemical instruments and methods, organic chemistry, compounds containing elements of Group 3/13 of the periodic table, etc. , sulfonated castor oil esters have limited water solubility and emulsifying properties

Inactive Publication Date: 2012-08-22
修建东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the limited water solubility and emulsification of sulfonated castor oil esters, especially in the application of fully synthetic cutting fluids, the phenomenon of milky whitening in the diluted solution often occurs. Since cutting fluids are mostly alkaline, sulfonated castor oil will The hydrolysis reaction of ester occurs and affects its lubricating effect

Method used

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  • Method for preparing hydroxylated sulfonated castor oil borate
  • Method for preparing hydroxylated sulfonated castor oil borate
  • Method for preparing hydroxylated sulfonated castor oil borate

Examples

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Embodiment 1

[0017] Add 350 grams of 70% sulfonated castor oil ester and 80 grams of monoethanolamine into a three-necked flask equipped with a stirring device, a reflux condensing device and a thermometer, heat with microwaves, and carry out hydroxylation reaction at 130°C to 140°C for 3 to 4 hours. Then slowly lower the temperature to about 80°C, react under constant temperature and reduced pressure for 2-3 hours, and further distill off glycerin and water under reduced pressure to obtain the intermediate product hydroxylated sulfonated castor oil; add 23 grams of boric acid to the three-necked bottle, After carrying out the esterification reaction at ℃ for 3-5 hours, stop the reaction to obtain hydroxylated sulfonated castor oil borate.

Embodiment 2

[0019] Add 170 kg of 70% sulfonated castor oil ester and 63 kg of diethanolamine into a reaction kettle equipped with a stirring device, a reflux condensing device and a thermometer, heat with microwaves, and carry out hydroxylation reaction at 140°C to 150°C for 4 h, then slowly Slowly lower the temperature to about 80°C, react under constant temperature and reduced pressure for 2-3 hours, and further distill off glycerin and water under reduced pressure to obtain the intermediate product hydroxylated sulfonated castor oil; After 3-5 hours of esterification reaction, stop the reaction to obtain hydroxylated sulfonated castor oil borate.

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Abstract

The invention discloses a method for preparing hydroxylated sulfonated castor oil borate. The method overcomes the defects in the prior art; sulfonated castor oil and alkanol amine undergo hydroxylation reaction by using a molecular design view, and water-soluble groups are introduced into molecules, so that water solubility, stability and emulsifying property of the molecules are enhanced; boric acid and hydroxy in the molecules undergo esterification reaction, so that stability, rust resistance, extreme pressure property and lubricating performance of the molecules are further enhanced, and a novel water-soluble hydroxylated sulfonated castor oil borate additive is synthesized; and the glycerol generated in the reaction process has a certain lubricating effect and is not required to be separated and removed, so that preparation and production are easy.

Description

technical field [0001] The invention relates to the technical field of organic chemical synthesis, in particular to a method for preparing hydroxylated sulfonated castor oil borate. Background technique [0002] Water-based metalworking fluids have been rapidly developed due to their excellent cooling, cleaning, rust resistance, economy and safety, and are widely used in metal processing fields such as cutting, grinding, calendering, stamping and tapping. , Sulfonated castor oil is an important water-based metalworking fluid additive, firstly because of its water solubility and emulsification, it is an important emulsifier; secondly, as an ester, it has certain lubricating properties , Therefore, as a water-based metalworking fluid additive, sulfonated castor oil has outstanding advantages. [0003] However, due to the limited water solubility and emulsification of sulfonated castor oil esters, especially in the application of fully synthetic cutting fluids, the phenomenon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/04
Inventor 修建东
Owner 修建东
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