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Production method of poly-2-hydroxypropyl-1. 1-N-dimethyl ammonium chloride

A technology of -1.1-N-, dimethyl ammonium chloride, applied in the field of chemical production, can solve the problems of water purification effect, temperature resistance, stability, etc., low production efficiency, low yield, etc. Problems, to achieve the effect of improving water purification effect, stable and firm structure, and improving temperature resistance

Inactive Publication Date: 2016-08-31
ZHEJIANG TAI CHUEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that it has a very good effect, but the production efficiency of poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride is not high, the yield is low, and the product can improve the water purification effect and durability Temperature, stability and other properties and can not meet the requirements of the corresponding field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The production method of poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride comprises the following steps: (a) adding 33% of liquid dimethylamine with 35% content and liquid epoxy with 95% content Chloropropane 34%, add reactor; In liquid dimethylamine, methylamine content=0.1%, trimethylamine content=0.1%; Ammonia content=0.01%, the chromaticity of liquid epichlorohydrin:=1; Relative density: 1.18; Moisture = 0.1%.

[0018] The reaction kettle is made of enamel or stainless steel reaction kettle, which can ensure the stability of the internal environment of the reaction kettle and at the same time avoid the corrosion of the reaction kettle itself. At the same time, it is stirred by the reaction kettle. RPM to ensure uniform stirring during the reaction; (b) polycondensation reaction; control the temperature in the reactor at 0°C and the pressure at 1mpa for 1 hour of reaction, (c) glue chain reaction; after the previous step is completed , then control the temperatu...

Embodiment 2

[0021] The production method of poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride comprises the following steps: (a) adding 40% liquid dimethylamine, 33%, 97% liquid epoxy Chloropropane 34%, add reaction kettle; In liquid dimethylamine, methylamine content=0.2%, trimethylamine content=0.3%; Ammonia content=0.05%, the chromaticity of liquid epichlorohydrin:=15; Relative density: 1.182; Moisture = 0.3%.

[0022] The reaction kettle is made of enamel or stainless steel reaction kettle, which can ensure the stability of the internal environment of the reaction kettle and at the same time avoid the corrosion of the reaction kettle itself. At the same time, it is stirred by the reaction kettle. RPM to ensure uniform stirring during the reaction; (b) polycondensation reaction; control the temperature in the reactor at 30°C and the pressure at 1.5mpa for 10 hours of reaction, (c) glue chain reaction; complete in the previous step Finally, control the temperature at 90°C and the pr...

Embodiment 3

[0025] The production method of poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride comprises the following steps: (a) adding 42% liquid dimethylamine, 33% liquid epoxy resin with 99% content Chloropropane 33%, add to the reactor; liquid dimethylamine, methylamine content = 0.3%, trimethylamine content = 0.5%; ammonia content = 0.1%, chroma of liquid epichlorohydrin: = 25; relative density 1.184 ; Moisture content = 0.5%.

[0026] The reaction kettle is made of enamel or stainless steel reactor, which can ensure the stability of the internal environment of the reactor and at the same time avoid the corrosion of the reactor itself. At the same time, it is stirred by the reactor. The stirring paddle of the reactor adopts the anchor type or paddle type, and the stirring speed is 500 RPM to ensure uniform stirring during the reaction; (b) polycondensation reaction; control the temperature in the reactor at 50°C and the pressure at 2mpa for 15 hours of reaction, (c) glue chain rea...

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Abstract

The invention relates to the technical field of chemical production and especially relates to a production method of poly-2-hydroxypropyl-1. 1-N-dimethyl ammonium chloride. The production method comprises a, adding 33-34% of liquid dimethylamine with content of 35-42% and 33-34% of liquid epoxy chloropropane with content of 95-99% into a reactor and carrying out stirring through the reactor, b, carrying out condensation polymerization, c, carrying out gel chain reaction and d, adjusting a pH value. The product is transformed into a partial net structure from a linear structure, has a stable and firm structure and improves low viscosity, low molecular weight, a flocculation capability, water cleaning effects, temperature and salt resistance and a decomposition temperature to 250-350 DEG C.

Description

technical field [0001] The invention relates to the technical field of chemical production, and relates to a production method, in particular to a production method of poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride. Background technique [0002] Poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride is used as a cationic coagulant in sewage treatment, mining and mineral processing; it is used as a formaldehyde-free color fixing agent in the textile industry; it is used in the papermaking process Among them, it is used as anionic garbage catcher and AKD maturing accelerator; in the oilfield industry, it is used as a clay stabilizer for drilling and a cationic modifier for acidification and fracturing in water injection. In addition, it is also used as conditioner, antistatic agent, moisturizer, shampoo and emollient for skin care. It can be seen that it has a very good effect, but the production efficiency of poly-2-hydroxypropyl-1.1-N-dimethylammonium chloride is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/02
CPCC08G73/0226
Inventor 俞益平周铁林徐小云罗文成
Owner ZHEJIANG TAI CHUEN NEW MATERIAL TECH CO LTD