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A kind of continuous production method of trimethylallyl ammonium chloride

A technology of trimethylallyl ammonium chloride and production method, applied in chemical instruments and methods, preparation of amino compounds, preparation of organic compounds, etc., can solve the problem of increasing the unit consumption of raw materials and production costs, process safety, and product quality. Risks, difficult removal of reaction heat, etc., to achieve the effects of stable storage, shortened reaction time, and small back-mixing

Active Publication Date: 2022-03-25
JIANGSU FEYMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are still many problems in the above-mentioned laboratory synthesis method: because the boiling points of trimethylamine (boiling point is 3~4°C) and allyl chloride (45°C) are very low, in the reaction process, feeding nitrogen protection will cause the raw material Partial loss of allyl chloride; excessive 60% of allyl chloride, greatly increasing the unit consumption of raw materials and production costs and other issues
The key point is that the above-mentioned synthetic method is still in the stage of small-scale development. Trimethylamine and allyl chloride are added at one time, and it is difficult to remove a large amount of reaction heat for industrial-grade production that is scaled up by an order of magnitude. There are very big problems in process safety and product quality. risk
[0005] At present, there is no report on the continuous production process of TMAAC industry

Method used

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  • A kind of continuous production method of trimethylallyl ammonium chloride

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Comparison scheme
Effect test

Embodiment 1

[0052] The continuous production method of the trimethylallyl ammonium chloride that this example provides, concrete implementation is as follows:

[0053] (1) The liquefied trimethylamine in the trimethylamine raw material tank and the allyl chloride in the allyl chloride raw material tank are continuously pumped into the first tubular reactor 3 by a metering pump to react to produce trimethylene Propylammonium chloride, control the temperature in the first tubular reactor 3 to be 15°C, the pressure to be 1.2MPa, and the residence time to be 22s; the temperature in the second tubular reactor 4 to be 20°C, the pressure to be 1.0MPa, and the residence time For 188s, the temperature in the third tubular reactor 5 is 45°C, the pressure is 0.8MPa, the residence time is 1360s, and each water inlet 2 in the production device is opened, so that the total water intake is 150kg / h, and the water that passes into is Deionized water is used to dissolve the trimethylallyl ammonium chloride...

Embodiment 2

[0062] The continuous production method of the trimethylallyl ammonium chloride that this example provides, concrete implementation is as follows:

[0063] (1) The liquefied trimethylamine in the trimethylamine raw material tank and the allyl chloride in the allyl chloride raw material tank are continuously pumped into the first tubular reactor 3 by a metering pump to react to produce trimethylene Propylammonium chloride, control the temperature in the first tubular reactor 3 to be 25°C, the pressure to be 1.6MPa, and the residence time to be 20s; the temperature in the second tubular reactor 4 to be 30°C, the pressure to be 1.5MPa, and the residence time For 138s, the temperature in the third tubular reactor 5 is 50°C, the pressure is 1.1MPa, the residence time is 1035s, and each water inlet 2 in the production device is opened, so that the total water intake is 300kg / h, and the water that passes into is Deionized water is used to dissolve the trimethylallyl ammonium chloride...

Embodiment 3

[0069] The continuous production method of the trimethylallyl ammonium chloride that this example provides, concrete implementation is as follows:

[0070] (1) The concentration in the trimethylamine raw material tank is respectively 30% aqueous solution trimethylamine and the allyl chloride in the allyl chloride raw material tank are continuously pumped into the first tubular reactor 3 by a metering pump to make it react and produce Trimethylallyl ammonium chloride, control the temperature in the first tubular reactor 3 to be 40°C, the pressure to be 1.0MPa, and the residence time to be 35s, and the temperature in the second tubular reactor 4 to be 50°C and the pressure to be 1.0 MPa, residence time is 188s, temperature in the 3rd tubular reactor 5 is 50 ℃, pressure is 0.9MPa residence time is 1435s, temperature in the 4th tubular reactor is 40 ℃, pressure is 0.7MPa residence time is 235s and Open each water inlet 2 in the production device, so that the total water intake is ...

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Abstract

The present invention relates to a continuous production method of trimethylallyl ammonium chloride, which comprises the following steps carried out sequentially and continuously: (1) feeding trimethylamine and allyl chloride continuously into the tubular reactor group respectively Carrying out the reaction to generate trimethylallyl ammonium chloride, and passing water into the tubular reactor group for dissolving the trimethylallyl ammonium chloride generated to obtain the semi-finished product of trimethylallyl ammonium chloride solution; (2) Pass the semi-finished product into the degassing tower for processing; (3) Recover the gas at the top of the degassing tower, and collect the liquid at the bottom of the degassing tower as the finished product of TMAAC solution. The present invention uses trimethylamine and allyl chloride as raw materials to carry out continuous TMAAC production in a tubular reactor group, the reaction heat is easy to remove, the reaction temperature is easy to control, safe and stable, and the reaction is carried out in a continuous closed system. The output is only trimethylallyl ammonium chloride aqueous solution product, no three wastes are generated in the production process, and the reaction yield is greater than or equal to 99.2%.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, and in particular relates to a continuous production method of trimethylallyl ammonium chloride. Background technique [0002] Trimethylallyl ammonium chloride, referred to as (TMAAC) is widely used in the petroleum industry. It can be used in clay treatment agents, drilling fluids, etc., and can also be used as adhesives, detergents, and dyeing aids. Grooved bone repair materials, conductive, antibacterial and other industrial materials. [0003] There are few reports about the synthesis of TMAAC, and the literature: Synthesis and structural analysis of trimethylallyl ammonium chloride (Yizhong, Chemical Reagent, 2005, 27 (9), 568~570), reported the TMAAC laboratory The synthesis method comprises adding 33% trimethylamine solution and allyl chloride into a three-neck round-bottomed grinding flask after mixing, adding a polymerization inhibitor and an antioxidant, and feeding nitrogen ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C209/00C07C209/86C07C211/63
CPCC07C209/00C07C209/86C07C211/63
Inventor 段立明何国锋戴明明王勤魏星光盛宇张莉陆迦能
Owner JIANGSU FEYMER TECH