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A kind of glyphosate continuous production device and method

A production device, technology of glyphosate

Active Publication Date: 2016-04-20
HUBEI TAISHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mixer at the top of the condensation tower is provided with a feeding pipe

Method used

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  • A kind of glyphosate continuous production device and method

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Effect test

Embodiment 1

[0018] A continuous glyphosate production device, the bottom end of the synthesis kettle 1 is connected to the mixer at the top of the condensation tower 2 through the feeding pipe, the condensation tower 2 is connected to the front end of the mixer 4 after the feeding pipe is connected to the circulating pump, and the mixing The upper end of the device 4 is provided with a high-level hydrochloric acid 18 storage tank, the end of the mixer 4 is connected to the circulating pump through the feeding pipe, the circulating pump is connected to the top of the mixing reactor 5 through the line pipeline, and the bottom of the mixing reactor 5 is connected to the magnetic pump through the feeding pipe After 6 connection, connect to the top of multi-stage balance tank 7-1, 2, 3, the bottom end of multi-stage balance tank 7-1, 2, 3 is connected to the top of multi-stage deacidification tank 8-1, 2, 3 through the feeding pipe Connection, the top of the multi-stage deacidification kettle 8...

Embodiment 2

[0025] A method for continuous production of glyphosate. Methanol and ethylenediamine respectively enter a synthesis kettle through a feeding pipe, and contact with glycine and paraformaldehyde input from a hopper for depolymerization and addition reaction to obtain a reaction liquid;

[0026] The reaction liquid is input into the mixer at the top of the condensation tank through the heat-preservation feeding pipeline, mixed with the dimethyl ester input from the mixer at the top of the condensation tank, and then input into the condensation tank for condensation reaction to obtain the condensation liquid;

[0027] The condensed liquid is mixed with the hydrochloric acid in the high-level hydrochloric acid tank through the heat preservation pipeline, and then enters the mixer to mix evenly, and then puts the mixed liquid into the mixing tank for hydrolysis reaction to obtain a hydrolyzed liquid;

[0028] Put the hydrolyzate into the balance tank through the magnetic pump, and a...

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Abstract

The invention provides a glyphosate continuous production device and method, specifically related to the continuous production of glyphosate synthetic liquid, pipeline reaction technology of hydrolyzed liquid and tail gas recovery technology. The purpose of the invention is to solve the existing shortcomings of intermittent operation, high labor intensity, high energy consumption and low purity of methyl chloride, improve the yield of glyphosate, the purity of methyl chloride and reduce energy consumption. The present invention increases the content of methyl chloride to 99.9%, increases the yield of glyphosate by 0.5% by realizing the continuous production of the whole process, reduces energy consumption, and is widely used in the field of glyphosate production.

Description

technical field [0001] The invention provides a device for continuous production of glyphosate, and uses the device to continuously produce glyphosate, belonging to the field of chemical technology and chemical equipment. Background technique [0002] Glyphosate is a high-efficiency, low-toxicity, broad-spectrum destructive systemic herbicide developed by Monsanto in the 1970s. It has occupied the first place in the world's pesticide sales for many years. With the large-scale planting of genetically modified glyphosate-resistant crops such as soybeans and corn, the global demand for glyphosate continues to increase. At present, there are two mainstream production processes of glyphosate in China: the glycine method (one-step method) and the iminodiacetic acid method (two-step method, first synthesizing diglyphosate, and then oxidizing the diglyphosate to be called glyphosate). The foreign production process is mainly the iminodiacetic acid method of Monsanto Company of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/38C07C17/38C07C19/03C07C29/74C07C31/04C07C41/58C07C43/30
Inventor 王瑞宝覃立忠
Owner HUBEI TAISHENG CHEM
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