Preparation method for high-purity glycerin polyethenoxy ether ricinoleate

A technology of polyoxyethylene ether and ricinoleate, which is applied in the field of preparation of high-purity glycerol polyoxyethylene ether ricinoleate, can solve problems such as poor effect, achieve high stability, light color, and easy product quality The effect of control

Inactive Publication Date: 2017-05-10
NANJING WELL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods for preparing castor oil polyoxyethylene ether all use castor oil as a starting agent, which will cause a part of impurity components in the obtained product, and then cause its poor effect in the later application process

Method used

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  • Preparation method for high-purity glycerin polyethenoxy ether ricinoleate
  • Preparation method for high-purity glycerin polyethenoxy ether ricinoleate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0032] Add 92g of glycerin and 0.5g of potassium hydroxide into a 2L stainless steel kettle. After nitrogen replacement, heat up and vacuum dehydrate for 1 hour, then slowly feed ethylene oxide into a total of 1320g, control the feed rate of ethylene oxide, and maintain the reaction temperature At 140-150°C, the pressure is about 0.5MPa. After feeding, heat preservation and aging for 1 hour until the pressure in the kettle is <0MPa, then cool down and discharge, calculate the weight of the product, obtain glycerin polyoxyethylene ether monomer R032-111, and submit the hydroxyl value of the product for inspection.

Embodiment 12

[0034] Add 92g of glycerin and 0.45g of sodium hydroxide to a 2L stainless steel kettle. After nitrogen replacement, heat up and vacuum dehydrate for 1 hour, then slowly feed ethylene oxide into a total of 1400g, control the feed rate of ethylene oxide, and maintain the reaction temperature At 140-150°C, the pressure is about 0.5MPa. After feeding, heat preservation and aging for 1 hour until the pressure in the kettle is <0MPa, then cool down and discharge, calculate the weight of the product, obtain glycerol polyoxyethylene ether monomer R032-112, and submit the hydroxyl value of the product for inspection.

Embodiment 13

[0036] Add 92g of glycerin and 0.45g of sodium methoxide to a 2L stainless steel kettle. After nitrogen replacement, heat up and vacuum dehydrate for 1h, then slowly feed ethylene oxide into a total of 1520g, control the feed rate of ethylene oxide, and maintain the reaction temperature at 140-150°C, the pressure is about 0.5MPa. After the feed is completed, heat preservation and aging for 1 hour until the pressure in the kettle is <0MPa, then cool down and discharge, calculate the weight of the product, and obtain the glycerin polyoxyethylene ether monomer R032-113, and submit the hydroxyl value of the product for inspection.

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Abstract

The invention provides a method for preparing high-purity glycerin polyethenoxy ether ricinoleate by etherifying an initiator raw material and ricinoleic acid-esterifying. The method comprises the following steps: using the glycerin as the raw material, executing the etherification reaction with ethylene oxide, and preparing the glycerin polyethenoxy ether, wherein the adding mole number of the ethylene oxide is 30-36 optimally; and according to the mass ratio of 3.79-3.83:1 of the glycerin polyethenoxy ether and the high-purity ricinoleic acid, executing the esterification reaction under the function of a specific catalyst, wherein the acid value, the hydroxyl value, the saponification value and so on of an esterification product satisfy the standard requirements. The glycerin polyethenoxy ether ricinoleate prepared by the method has the narrower chain distribution and lower esterification reaction temperature, the prepared product has light color, the product quality is easily controlled, and the stability is high.

Description

technical field [0001] The invention relates to a new method for preparing high-purity glycerol polyoxyethylene ether ricinoleic acid ester by esterification with ricinoleic acid after the etherification of starting material raw materials. Background technique [0002] Glycerin polyoxyethylene ether ricinoleate is dispersed in water and has excellent emulsification and diffusion properties. In the textile industry, it is used as the main component of synthetic fiber spinning oils such as polyester and polyvinyl alcohol. It has emulsifying and antistatic effects and can make sizing soft and smooth; it can be used as a soft and smooth agent in chemical fiber pulp, and can Eliminate foam in synthetic slurry; in the pharmaceutical industry, it is used as an emulsifier for the manufacture of liniments, creams, emulsions, etc.; it can be used as a pesticide emulsifier, emulsion polymerization emulsifier, for the preparation of water-soluble metal cutting fluid and Household clean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C08G65/332C08G65/30
CPCC08G65/2609C08G65/30C08G65/3322
Inventor 吴明朗付鑫潘晶晶王保成吴仁荣高正松
Owner NANJING WELL CHEM
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