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Method for preparing 3-dehydroabietylamine-2-hydroxypropyl dimethyl benzyl ammonium chloride

A technology of hydroxypropyl dimethyl benzyl ammonium chloride and epoxypropyl dimethyl benzyl ammonium chloride is applied in the field of preparing cationic surfactants containing dehydroabietyl amine structure, and can solve the problem of water solubility of products Not very good, complex process, low conversion rate of dehydroabietine, etc.

Inactive Publication Date: 2009-08-19
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention of a method for preparing 3-dehydroabietylamino-2-hydroxypropyl dimethyl benzyl ammonium chloride is mainly to solve the existing quaternary ammonium salt type cationic surfactant containing dehydroabietylamine structure There are many reaction steps in the preparation method and process, the process is relatively complicated, the conversion rate of dehydroabietylamine is not high, the content of quaternary ammonium salt in the product is not high, and there is more unreacted dehydroabietylamine in the product. However, the water solubility of the product is not very good and affects the application performance of the product, etc.

Method used

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  • Method for preparing 3-dehydroabietylamine-2-hydroxypropyl dimethyl benzyl ammonium chloride

Examples

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Effect test

Embodiment 1

[0017] 100 grams of dehydroabietylamine is made of 400 grams of 1,2-dichloroethane, dichloromethane, ethyl acetate, chloroform, N, N-dimethylformamide, and acetonitrile in a mass ratio of 2:8:3: The composite solvent composed of 5:10:2 was dissolved to form a uniform solution, and then 100 grams of glycidyl dimethyl benzyl ammonium chloride and 3-chloro-2-hydroxypropyl dimethyl benzyl ammonium chloride were added A quaternizing agent with a mass ratio of 10:13 was stirred to form a mixed material; 50 grams of a solid catalyst loaded with an acid-binding agent was added to the mixed material, wherein the carrier of the solid catalyst was made of 100 mesh alumina, 300 mesh silica gel, 150 mesh The target activated carbon is composed of a mass ratio of 1:2:3, and the acid-binding agent contained in the solid catalyst is composed of sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylami...

Embodiment 2

[0019] 100 grams of dehydroabietylamine with 800 grams of 1,2-dichloroethane, dichloromethane, ethyl acetate, chloroform, N, N-dimethylformamide, acetonitrile in a mass ratio of 5:10:7: The composite solvent composed of 5:10:6 was dissolved to form a uniform solution, and then 300 grams of glycidyl dimethyl benzyl ammonium chloride and 3-chloro-2-hydroxypropyl dimethyl benzyl ammonium chloride were added A quaternizing agent with a mass ratio of 1:13 was stirred to form a mixed material; 150 grams of solid catalyst loaded with an acid-binding agent was added to the mixed material, wherein the carrier of the solid catalyst was made of 300 mesh alumina, 300 mesh silica gel, 250 mesh The target activated carbon is composed of a mass ratio of 2:7:9, and the acid-binding agent contained in the solid catalyst is composed of sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylamine , tripr...

Embodiment 3

[0021]100 grams of dehydroabietylamine is made of 1200 grams of 1,2-dichloroethane, dichloromethane, ethyl acetate, chloroform, N, N-dimethylformamide, and acetonitrile in a mass ratio of 8:3:9: The composite solvent composed of 5:12:3 was dissolved to form a uniform solution, and then 50 grams of glycidyl dimethyl benzyl ammonium chloride and 3-chloro-2-hydroxypropyl dimethyl benzyl ammonium chloride were added A quaternizing agent with a mass ratio of 15:7 was stirred to form a mixed material; 80 grams of a solid catalyst loaded with an acid-binding agent was added to the mixed material, wherein the carrier of the solid catalyst was made of 500 mesh alumina, 400 mesh silica gel, 400 mesh The target activated carbon is composed of a mass ratio of 10:7:2, and the acid-binding agent contained in the solid catalyst is composed of sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylamin...

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Abstract

A method for preparing 3-dehydroabietylamine-2-hydroxypropyl dimethyl benzyl ammonium chloride is a method for preparing a cationic active agent containing a rosin amine structure in the forest chemical field. At a temperature between 10 and 150 DEG C, an acid-binding agent compounded by sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylamine, tripropyl amine and tributyl amine is loaded on a carrier consisting of aluminum oxide, silica gel and active carbon to form a solid which is used as a catalyst for catalyzing the reaction of dehydroabietylamine and quaternizing agent consisting of epoxy propyl dimethyl benzyl ammonium chloride and 3-chlorin-2-hydroxypropyl dimethyl benzyl ammonium chloride for 1 to 50 hours, and then the reactants are subjected to centrifugation or filtration, exsolution and composite solvent recrystallization to form a wet material of the 3-dehydroabietylamine-2-hydroxypropyl dimethyl benzyl ammonium chloride; and the wet material is dried for 1.0 to 48.0 hours at a temperature between 10 and 120 DEG C at a vacuum degree of 0.01 to 0.1MPa to form a product of the 3-dehydroabietylamine-2-hydroxypropyl dimethyl benzyl ammonium chloride mass percentage of which is more than 90 percent.

Description

technical field [0001] A method for preparing 3-dehydroabietylamino-2-hydroxypropyl dimethyl benzyl ammonium chloride involved in the present invention is a novel method for preparing dehydroabietyl-containing Amine-structured cationic surfactant approach. Background technique [0002] Rosin is a renewable natural resource. As a chemical raw material, it also has the characteristics of abundant sources and low price. The main component of rosin is a resin acid with a three-membered phenanthrene ring structure composed of abietic acid, long-leaved abietic acid and neoabietic acid. Because there are not only carboxyl groups but also unsaturated carbon-carbon double bonds in the resin acid, the resin acid can be chemically modified and converted into rosin derivatives such as dehydroabietylamine and abietyl alcohol. These rosin derivatives can be used to synthesize a series of products that are similar in structure to fatty acids, fatty amines, and fatty alcohol surfactants, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C215/40C07C213/04C11D1/62
Inventor 蔡照胜朱雪梅杨春生
Owner YANCHENG INST OF TECH
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