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Device and method for continuously producing sodium methyl taurate in pipeline mode

A technology of sodium methyl taurate and its production method, which is applied in the field of pipeline continuous production of sodium methyl taurate, can solve the problems of long reaction time impurities, no operating flexibility, fast power consumption, etc., and achieve product quality Effects of stability, reduced dosage, and less reaction by-products

Inactive Publication Date: 2012-09-19
HUANGGANG YONG AN PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that the reaction time is long, the production capacity is limited, the output of each kettle is consistent in the constant volume reaction, and there is no operating flexibility. In addition, the reactor device is large, the power consumption is fast, and the energy consumption is high, resulting in a large investment in large-scale production. Big
The longer the reaction time, the more impurities, the purification is complicated, the color of the product is darker, the yield is low, and the waste water is much and difficult to handle

Method used

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  • Device and method for continuously producing sodium methyl taurate in pipeline mode
  • Device and method for continuously producing sodium methyl taurate in pipeline mode

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Experimental program
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Effect test

Embodiment 1

[0022] Sodium isethionate, water, methylamine, catalyst sodium hydroxide are joined in the storage tank 1, the addition of sodium hydroxide accounts for 0.3% of the total mass of the reaction solution, and the sodium isethionate and methylamine The molar ratio is controlled to be 1:8 and mixed evenly, and then the material is pumped into the continuous pipeline reactor 4 through the booster pipeline pump 3, and heated at a high temperature of 180°C by the heat transfer oil, and the booster pump increases the pressure to 18Mpa, and reacts in the pipeline The reaction time in the device 4 is 30 minutes. After the reaction, the material enters the evaporator 5 and undergoes multi-stage distillation. The decolorization and water replenishment refinement 6 is qualified sodium methyl taurate, and the yield is 90%.

Embodiment 2

[0024] Sodium isethionate, water, methylamine, catalyst potassium hydroxide are added in the storage tank 1, the addition of potassium hydroxide accounts for 0.5% of the total mass of the reaction solution, and the sodium isethionate and methylamine The molar ratio is controlled to be 1:10 and mixed evenly, then the material is pumped into the continuous pipeline reactor 4 through the booster pipeline pump 3, and heated at a high temperature of 240°C by the heat transfer oil, the booster pump increases the pressure to 19Mpa, and reacts in the pipeline The reaction time in the device 4 is 25min. After the reaction, the material enters the evaporator 5 and undergoes multi-stage distillation, and the decolorization and water replenishment refining 6 is qualified sodium methyl taurate with a yield of 93%.

Embodiment 3

[0026] Sodium isethionate, water, methylamine, catalyst sodium hydroxide are added in storage tank 1, the add-on of sodium hydroxide accounts for 1% of the total mass of reaction solution, the sodium isethionate and methylamine The molar ratio is controlled at 1:11 and mixed evenly, then the material is pumped into the continuous pipeline reactor 4 through the booster pipeline pump 3, and heated at a high temperature of 260°C by the heat transfer oil, the booster pump increases the pressure to 20Mpa, and the reaction occurs in the pipeline The reaction time in the device 4 is 40min. After the reaction, the material enters the evaporator 5 and undergoes primary and secondary distillation. The decolorization and water replenishment refining 6 is qualified sodium methyl taurate with a yield of 91%.

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Abstract

The invention relates to a device and a method for producing sodium methyl taurate, in particular to a device and a method for continuously producing sodium methyl taurate in a pipeline mode. The method comprises the following steps of: adding sodium hydroxyethyl sulfonate, water, methylamine and catalyst into a storage tank, pumping the materials into a continuous pipeline reactor through a boosting pipeline pump under the high pressure of 10 to 25MPa, heating to the temperature of between 150 and 300 DEG C through heat conducting oil, and reacting for 10 to 60 minutes in the pipeline reactor; and feeding the materials into an evaporator after reaction, performing multistage distillation, decolorizing, moisturizing, refining, and thus obtaining the qualified sodium methyl taurate. The device is simple and high in process safety, the reaction conditions are easy to control, continuous production is realized, the yield reaches over 90 percent, the sodium methyl taurate is stable in quality, and large-scale production can be realized with low investment in the industry.

Description

technical field [0001] The invention relates to a device and a production method for producing sodium methyl taurate, in particular to a device for continuously producing sodium methyl taurate through pipelines and a production method thereof. Background technique [0002] The current domestic production process of sodium methyl taurate is mostly batch-type tank reactor, that is, the material to be reacted is added with a certain amount of catalyst in a certain proportion, stirred and heated in the tank reactor, until The conversion of the main reactants to a certain ratio at a certain temperature and a certain time is the end point. The disadvantage of this technology is that the reaction time is long, the production capacity is limited, the output of each kettle is consistent in the constant volume reaction, and there is no operating flexibility. In addition, the reactor device is large, the power consumption is fast, and the energy consumption is high, resulting in a larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/14C07C303/32
Inventor 方锡权凌剑刘丰陈艳明
Owner HUANGGANG YONG AN PHARMA
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