Production method of esterquats

A technology of ester-based quaternary ammonium salts and production methods, which is applied in chemical instruments and methods, preparation of organic compounds, preparation of aminohydroxyl compounds, etc., and can solve problems such as high product odor, low output, and small production scale

Inactive Publication Date: 2012-02-01
阿克苏诺贝尔化学品(博兴)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic production of ester-based quaternary ammonium salts is still in its infancy, and the production method adopted has a long reaction time and low output. At the same time, the products produced have strong odor, deep color, poor quality, and high produ

Method used

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  • Production method of esterquats

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Experimental program
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Effect test

Embodiment 1

[0032] A kind of production method of ester group quaternary ammonium salt, described method has production ester amine step and utilizes ester amine to produce quaternary ammonium salt step successively,

[0033] In the step of producing esteramine, add fatty acid, catalyst and conditioner to the loop reactor fully replaced with nitrogen, then raise the temperature and continuously add alkanolamine, and control the pressure in the loop reactor to be 0.05Mpa , the reaction temperature is 220°C, and the reaction time is 2.0 hours. When the acid value of the reactant is 6 mgKOH / g, the reaction is terminated, and the ester amine is obtained after passing through steam for deodorization treatment;

[0034]In the step of using esteramine to produce quaternary ammonium salt, the esteramine is cooled to 68°C, pumped into the quaternization reactor with agitator, and the alkylating agent is continuously added to the quaternization reactor. Stir and react with the esteramine under exte...

Embodiment 2

[0038] A kind of production method of ester group quaternary ammonium salt, described method has production ester amine step and utilizes ester amine to produce quaternary ammonium salt step successively,

[0039] In the step of producing esteramine, add fatty acid, catalyst and conditioner to the loop reactor fully replaced with nitrogen, then raise the temperature and continuously add alkanolamine, and control the pressure in the loop reactor to be 0.50Mpa , the reaction temperature is 180°C, the reaction time is 3.5 hours, the reaction is terminated when the acid value of the reactant is 0.5 mgKOH / g, and the ester amine is obtained after passing through steam for deodorization treatment;

[0040] In the step of using esteramine to produce quaternary ammonium salt, the esteramine is cooled to 71°C, pumped into the quaternization reactor with agitator, and the alkylating agent is continuously added to the quaternization reactor. Stir and react with the esteramine under extern...

Embodiment 3

[0044] A kind of production method of ester group quaternary ammonium salt, described method has production ester amine step and utilizes ester amine to produce quaternary ammonium salt step successively,

[0045] In the step of producing esteramine, add fatty acid, catalyst and conditioner to the loop reactor fully replaced with nitrogen, then raise the temperature and continuously add alkanolamine, and control the pressure in the loop reactor to be 0.25Mpa , the reaction temperature is 200°C, and the reaction time is 2.8 hours. When the acid value of the reactant is 3.2KOH / g, the reaction is terminated, and the ester amine is obtained after passing through steam for deodorization treatment;

[0046] In the step of producing quaternary ammonium salt by using ester amine, the temperature of ester amine is lowered to 70°C, pumped into the quaternization reactor with agitator, and the alkylating agent is continuously added to the quaternization reactor. Stir and react with the e...

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Abstract

The invention provides a production method of esterquats. The method includes an ester amine production step and a step of esterquats production by utilizing ester amine. In the ester amine production step, fatty acid, a catalyst and a conditioner are added into a loop reactor, then the temperature is raised and alkanolamine is added continuously, when the reaction is terminated, steam is introduced for deodorization treatment, so that the ester amine can be obtained. In the step of producing esterquats by utilizing ester amine, the ester amine is pumped into a quaterisation reactor, and an alkylating agent is added into the quaterisation reactor continuously so as to react with the ester amine under stirring and external circulation, then the reaction end point is determined by analyzing the free amine value of a quaterisation product, thus the production of esterquats can be completed. The production method of esterquats in the invention realizes industrial production of ester amine by utilizing a loop reactor. Production of esterquats through a quaterisation reactor with a stirrer and external circulation has the advantages of short reaction time, high yield, small odor in products, light color, good quality, and low production cost.

Description

technical field [0001] The invention provides a production method of an ester quaternary ammonium salt. Background technique [0002] Esterquaternary ammonium salt is a new type of cationic surfactant, which can be used as fabric softener, fungicide, etc. Esterquaternary ammonium salts have been more and more widely used in the international market because of their excellent performance, low price, and good biodegradability, and there is a tendency to gradually replace alkylquaternary ammonium salts. The domestic production of ester-based quaternary ammonium salts is still in its infancy. The production method adopted has long reaction time and low output. At the same time, the products produced have strong odor, deep color, poor quality and high production cost. And the production scale is small, and the annual output is mostly below 1,000 tons. The relevant reports are mostly experimental research and pilot test production, and large-scale industrial production and indust...

Claims

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Application Information

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IPC IPC(8): C07C213/10C07C219/06C07C213/00D06M13/463C07C219/08
Inventor 叶建全佘庆海刘振泊李键
Owner 阿克苏诺贝尔化学品(博兴)有限公司
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