A kind of preparation method of cationic synthetic vegetable oil fatliquor

A technology for vegetable oil and fatliquor, which is applied in the preparation of organic compounds, the preparation of carboxylic acid amides, chemical instruments and methods, etc., can solve the problems of few varieties of internal emulsification type cationic fatliquor and can not meet the actual needs of production, etc. Achieve excellent dilution stability, enhanced hand and softness, and reduced production costs

Active Publication Date: 2016-08-03
山东黎宁科技新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few varieties of internal emulsification cationic fatliquor, which cannot meet the actual needs of production

Method used

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  • A kind of preparation method of cationic synthetic vegetable oil fatliquor
  • A kind of preparation method of cationic synthetic vegetable oil fatliquor
  • A kind of preparation method of cationic synthetic vegetable oil fatliquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Transesterification reaction: Add 500 parts of rapeseed oil and 90 parts of methanol into a 1000 mL four-necked flask equipped with a thermometer, a stirring device and a reflux condenser, raise the temperature to 80°C, add 5 parts of p-toluenesulfonic acid, and keep stirring to react 4 hours, after the completion of the reaction, the product was allowed to stand for stratification, the upper strata was rapeseed oil fatty acid methyl ester, and the lower floor was glycerol, and the lower floor was released to obtain rapeseed oil fatty acid methyl ester; Add 200 parts of rapeseed oil fatty acid methyl ester and 50 parts of ethanolamine to a 500 mL four-necked flask with a stirring device and a reflux condenser, raise the temperature to 140°C, and react at 0.04Mpa for 3 hours; 3. Quaternization reaction: cool down to 55°C , add 1.25 parts of triethylamine, take 122 parts of glycidyltrimethylammonium chloride aqueous solution dropwise into the reaction kettle, keep stirr...

Embodiment 2

[0027] 1. Transesterification reaction: Add 500 parts of rapeseed oil and 90 parts of methanol into a 1000 mL four-necked bottle equipped with a thermometer, a stirring device and a reflux condenser, raise the temperature to 80°C, add 5 parts of p-toluenesulfonic acid, and keep stirring to react 3.5 hours, after the completion of the reaction, the product was allowed to stand for stratification, the upper layer was rapeseed fatty acid methyl ester, the lower floor was glycerol, and the lower floor was released to obtain rapeseed fatty acid methyl ester; Add 200 parts of rapeseed oil fatty acid methyl ester and 80 parts of ethanolamine to a 500 mL four-necked flask with a stirring device and a reflux condenser, raise the temperature to 135°C, and react at 0.04Mpa for 3 hours; 3. Quaternization reaction: cool down to 55°C , add 1.25 parts of triethylamine, take 122 parts of glycidyltrimethylammonium chloride aqueous solution dropwise into the reaction kettle, keep stirring and re...

Embodiment 3

[0029] 1. Transesterification reaction: Add 500 parts of rapeseed oil and 90 parts of methanol into a 1000 mL four-necked flask equipped with a thermometer, a stirring device and a reflux condenser, raise the temperature to 80°C, add 5 parts of p-toluenesulfonic acid, and keep stirring to react 4 hours, after the completion of the reaction, the product was allowed to stand for stratification, the upper strata was rapeseed oil fatty acid methyl ester, and the lower floor was glycerol, and the lower floor was released to obtain rapeseed oil fatty acid methyl ester; Add 200 parts of rapeseed oil fatty acid methyl ester and 80 parts of ethanolamine to a 500 mL four-necked flask with a stirring device and a reflux condenser, raise the temperature to 145°C, and react at 0.04Mpa for 4 hours; 3. Quaternization reaction: cool down to 55°C , add 1.25 parts of triethylamine, take 122 parts of glycidyltrimethylammonium chloride aqueous solution dropwise into the reaction kettle, keep stirr...

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Abstract

Disclosed are a novel synthetic cationic vegetable oil fat liquor and a preparation method thereof. The novel synthetic cationic vegetable oil fat liquor is prepared from rapeseed oil, methanol, ethanolamine and quaternary ammonium salt ETA (epoxypropyl trimethyl ammonium chloride) by transesterification between the rapeseed oil and the methanol, amidation reaction between rapeseed oil fatty acid methyl ester and the ethanolamine and reaction between quaternization reagent and a product obtained from amidation reaction. The novel synthetic cationic vegetable oil fat liquor and the preparation method have the advantages that by means of an internal emulsification method, cationic active groups are introduced into rapeseed oil molecular structures, and accordingly, the novel synthetic cationic vegetable oil fat liquor is high in dilution-resisting, acid-resisting, alkali-resisting and chromic-salt-resisting stability; permeation and even distribution of chromium can be promoted, chromium absorption of rawhide is increased, and the novel synthetic cationic vegetable oil fat liquor can serve as a pre-fat-liquoring material before chrome tanning; the novel synthetic cationic vegetable oil fat liquor has excellent oil and color fixation performance, thereby being a preferred material serving as leather dyeing and oil and color fixing after fat liquoring.

Description

technical field [0001] The invention relates to the field of leather fatliquor, in particular to a method for preparing a cationic synthetic vegetable oil fatliquor. Background technique [0002] Leather fatliquor is one of the indispensable leather chemical materials in modern tanning production. By acting on leather collagen fibers, leather fatliquors can lubricate collagen fibers and endow crust leather with corresponding elasticity, toughness, fullness, and tightness. Solid and other excellent physical and mechanical properties. Fatliquor mainly includes anionic, cationic, amphoteric and nonionic fatliquors; among them, cationic fatliquor has unique fatliquor performance because of its positive charge on the surface active components: if used in chrome tanning The pre-oiling process can promote the penetration and uniform distribution of the chrome tanning agent, so that the grain surface of the crust leather is fine and the leather body is plump; Therefore, it can ach...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C9/02
CPCC07C67/03C07C231/02C07C231/12C14C9/02C07C233/17C07C69/003
Inventor 陈煜坤魏延伟魏祥玲
Owner 山东黎宁科技新材料有限公司
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