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Continuous production method of biquaternary ammonium salt

A technology of a biquaternary ammonium salt and a production method, applied in the field of fine chemicals, can solve the problems of using a large amount of organic solvents, high production cost, long reaction period, etc., and achieves that the reaction end point is easy to define, the reaction speed is increased, and the reaction balance is changed. Effect

Active Publication Date: 2020-02-04
SHANDONG TAIHE WATER TREATMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some progress has been made in the synthesis process of bis-quaternary ammonium salt, but it is not mature enough. The synthesis process generally has the problems of long reaction cycle and large use of organic solvents, resulting in high production cost of the existing process, low resource utilization rate, and environmental protection. The high processing cost limits the large-scale industrial production of diquaternary ammonium salt products

Method used

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  • Continuous production method of biquaternary ammonium salt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add the materials into the mixing tank at a constant speed according to the flow rate of dodecyldimethyl tertiary amine 101.2kg / h, 1,3-dichloropropane 56.5kg / h, pure water 57.5kg / h, and start stirring at the same time, after 10min , pump the mixed material into the first-stage static mixer at a constant speed of 220.5kg / h, and control the temperature in the continuous reactor to 118±2°C through the jacket, and the material enters the first-stage continuous reaction at a uniform speed after being mixed by the first-stage static mixer Reaction in the container, after 3.78 hours of reaction, the material flows from the first-stage continuous reactor to the second-stage static mixer. At this time, dodecyl dimethyl tertiary amine is added at a constant speed at a flow rate of 111.8kg / h, and the mixed material is passed through the second-stage static mixer. After being mixed by the static mixer, it enters the two-stage continuous reactor for reaction. After 4.03 hours of reac...

Embodiment 2

[0024] Add materials into the mixing tank at a constant speed according to the flow rate of 101.2kg / h dodecyldimethyl tertiary amine, 64.5kg / h 1,3-dichloropropanol, and 57.5kg / h pure water, and start stirring at the same time, stirring After 10 minutes, pump the mixed material into the first-stage static mixer at a constant speed of 228.5kg / h, and control the temperature in the continuous reactor to 118±2°C through the jacket, and the material enters the first-stage static mixer at a uniform speed after being mixed by the first-stage static mixer. React in the continuous reactor. After 4.02 hours of reaction, the material changes from turbid to clear. The material flows from the first-stage continuous reactor to the second-stage static mixer. At this time, tetradecyldimethyl Tertiary amine, the mixed material is mixed by the secondary static mixer and then enters the secondary continuous reactor for reaction. After 4.12 hours of reaction, the material is pumped into the dilutio...

Embodiment 3

[0026] Add the materials into the mixing tank at a constant speed according to the flow rate of quinoline 66.2kg / h, 1,3-dichloropropanol 69.7kg / h, and pure water 57.5kg / h, and start stirring at the same time. After stirring for 10 minutes, mix the materials with The flow rate of 196.9kg / h is pumped into the first-stage static mixer at a constant speed, and the temperature in the continuous reactor is controlled by the jacket to be 118±2°C. After being mixed by the first-stage static mixer, the materials enter the first-stage continuous reactor at a uniform speed for reaction. After 3.85 hours, the material changed from turbidity to clarification, and the material flowed from the first-stage continuous reactor to the second-stage static mixer. At this time, hexadecyldimethyl tertiary amine was added at a constant speed at a flow rate of 152.5kg / h, and the mixed material was passed through two After being mixed by the first-stage static mixer, it enters the second-stage continuou...

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Abstract

According to the invention, a production mode comprises: generating a monoquaternary ammonium salt intermediate, and then generating a target biquaternary ammonium salt product, wherein the whole production process achieves continuous production of continuous feeding, continuous mixing, continuous reaction and continuous discharging mainly through a static mixer and a continuous reactor; the production method is simple and easy to operate, a variety of biquaternary ammonium salts can be synthesized, and the equipment utilization rate is greatly increased through the continuous production modeso as to shorten the production period; and the use and the recovery treatment of organic solvents are avoided in the production process, no three wastes are generated in the whole process, and the method is environmentally friendly.

Description

technical field [0001] The patent of the present invention relates to the technical field of fine chemicals, in particular to a continuous production method of diquaternary ammonium salts. Background technique [0002] Double quaternary ammonium salt is a product developed on the basis of single quaternary ammonium salt. It is a broad-spectrum fungicide, and its bactericidal ability is stronger than that of single quaternary ammonium salt such as 1227. Positive charges are selectively adsorbed by negatively charged bacteria on the surface, and pass through the cell surface into the cell membrane through osmosis and diffusion, thereby affecting the semi-permeability of the cell membrane, and further penetrating into the cell interior, inactivating cell enzymes and unable to produce protein enzymes , to denature the protein to achieve the effect of killing bacterial cells. Compared with single quaternary ammonium salts, double quaternary ammonium fungicides not only have the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C209/12C07C211/63C07C213/04C07C215/40C07D215/10C07D213/20B01F13/10B01F5/06B01J19/24
CPCC07C209/12C07C213/04C07D215/10C07D213/20B01J19/242B01F25/42B01F33/80B01F33/811B01F33/8362C07C211/63C07C215/40
Inventor 程终发周响李响王宁宁齐晓婧陈成效
Owner SHANDONG TAIHE WATER TREATMENT TECH CO LTD
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