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Method for producing glyphosate sylvine aqua with glyphosate mother liquor

A technology of glyphosate potassium salt and glyphosate mother liquor, applied in the directions of biocides, plant growth regulators, chemical instruments and methods, etc., can solve the problems of soil salinization and inability to handle the mother liquor

Active Publication Date: 2011-01-19
JIANGXI JINLONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because 10% glyphosate water contains a lot of sodium chloride, long-term large-scale application may cause soil salinization, the country has restricted the production of glyphosate water with glyphosate content below 30%, if the glyphosate mother liquor cannot It is used for the preparation of glyphosate water solution with a content of 30% and above, and the mother liquor cannot be processed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: get 1000kg glyphosate acid mother liquor, add 40% potassium hydroxide solution 740kg, adjust pH to be 11.0, separate triethylamine, and trace triethylamine in mother liquor steams, obtain potassium mother liquor, potassium mother liquor Concentrate and separate by membrane filtration to obtain a mother liquor with a potassium chloride content of 4%. Take 36g of the mother liquor after membrane treatment, add 31g of glyphosate raw powder, 25g of 48% potassium hydroxide, 4g of alkyl glycosides, and 4g of amine ether to prepare 100g Glyphosate potassium salt solution with 30% glyphosate content.

Embodiment 2

[0020] Embodiment 2: get 1000kg glyphosate acid mother liquor, add 25% potassium hydroxide solution 1000kg, make its pH value be 9.0, upper strata triethylamine is separated, and the trace triethylamine in lower floor mother liquor steams out, obtains potassium The mother liquor is ready for use, and the potassium mother liquor is concentrated and separated by membrane filtration to obtain a mother liquor with a potassium chloride content of 3%. After taking the membrane and treating the mother liquor 12g, add 43g of glyphosate raw powder, 35g of 48% potassium hydroxide, 5g of amine ether, polyethylene glycol Alcohol 5g, is mixed with the glyphosate potassium saline agent of 100g glyphosate content 41%.

Embodiment 3

[0021] Embodiment 3: get 1000kg glyphosate acid mother liquor, add 30% potassium hydroxide solution 900kg, make its pH value be 10.0 upper layer triethylamine is separated, and the trace triethylamine in lower floor mother liquor steams out, obtains potassium mother liquor Standby, after membrane treatment as in Example 1, take 23g of mother liquor after membrane treatment, add 50g of glyphosate wet material, 15g of 82% solid potassium hydroxide, 6g of alkyl glucoside, 3g of amine ether, and 3g of polyethylene glycol, Be mixed with the glyphosate potassium salt solution of 100g glyphosate content 41%.

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Abstract

The invention relates to a method for producing glyphosate sylvine aqua with glyphosate mother liquor, which belongs to the technical field of methods for processing the glyphosate mother liquor and comprises the following steps: 1) adding sodium hydroxide solution or potassium hydroxide solution to the glyphosate mother liquor for neutralization so that the pH value is between 9.0 and 11.0, and separating triethylamine to prepare sodium mother liquor or potassium mother liquor for standby; 2) filtering and separating the sodium mother liquor or the potassium mother liquor through a multi-stage sodium filter membrane, and taking the concentrated liquor after the membrane treatment for standby; and 3) adding a glyphosate bulk drug or a glyphosate wet material, potassium hydroxide and a glyphosate auxiliary agent to the concentrated liquor after the membrane treatment to prepare the glyphosate sylvine aqua of which the glyphosate content is more than 30 percent. The method for producingthe glyphosate sylvine aqua with the glyphosate mother liquor makes full of resources of the glyphosate acid mother liquor, maintains the normal production of the glyphosate, and contains potassium and phosphite, thus the method not only has no influence on the environment, but also has the effect of replenishing potassium fertilizers and phosphatic fertilizers while weeding.

Description

technical field [0001] The invention belongs to the technical field of glyphosate mother liquor treatment methods, in particular to a method for producing glyphosate potassium salt solution by using glyphosate mother liquor. Background technique [0002] Glyphosate is a systemic herbicide with the largest sales volume and the fastest growth rate in the world. With the continuous consumption of oil in the world, the rise of bio-alternative energy sources, and the successful promotion and use of glyphosate-resistant genetically modified crops, It provides a good opportunity for glyphosate production. Glyphosate production mainly includes the alkyl aminoacetate method and the IDA method. In China, the alkyl aminoacetate method is the most common method. The raw materials for the production of alkyl aminoacetate method are paraformaldehyde (formaldehyde), aminoacetic acid, dimethyl phosphite, triethylamine, methanol, hydrochloric acid, sodium hydroxide, wherein the depolymeriza...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F9/38A01N57/20
Inventor 孔鑫明刘劭农张俊杰程晨杰
Owner JIANGXI JINLONG CHEM