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A kind of production technology of glyphosate salt granule

A glyphosate salt and production technology technology, applied in the field of pesticides, can solve the problems of large project investment, pollution control and safe disposal, etc., and achieve the effects of good safety, good efficacy and good drying effect.

Active Publication Date: 2016-01-20
SICHUAN LESHAN FUHUA TONGDA AGRO-CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic solvents are used in the preparation method, and the use of organic solvents will bring pollution control and safe disposal problems, and the project investment is relatively large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of production technology of glyphosate salt granule, concrete operation steps are as follows:

[0032] A: Add 0.2 times of water to the glyphosate original drug by mass, and then add ammonium carbonate, so that the molar ratio of glyphosate to ammonia ions is 1:1, and the reaction temperature is controlled at 80°C during the reaction;

[0033] After the B reaction is complete, add functional fillers, glyphosate ammonium salt special additives, and colorants to the material, and stir evenly;

[0034] Preparation of C granules: transfer the material to a spray granulator through a spray gun to make granules, dry to a moisture content of 0.6%, sieve, and pack.

Embodiment 2

[0036] A kind of production technology of glyphosate salt granule, concrete operation steps are as follows:

[0037] A: Add 1.8 times of water to the glyphosate original drug by mass, and then add ammonium bicarbonate, so that the molar ratio of glyphosate to ammonia ions is 1:1.8, and the reaction temperature is controlled at 70°C during the reaction;

[0038] After the B reaction is complete, add functional fillers, glyphosate ammonium salt special additives, and colorants to the material, and stir evenly;

[0039] The dosage of the special additive for glyphosate ammonium salt is 1% of the quality of glyphosate salt.

[0040] Preparation of C granules: transfer the material to a spray granulator through a spray gun to make granules, dry to a moisture content of 0.5%, sieve, and pack.

[0041] The functional filler in the present invention refers to substances with auxiliary functions such as chelating elemental fertilizer and monoammonium phosphate.

Embodiment 3

[0043] A kind of production technology of glyphosate salt granule, concrete operation steps are as follows:

[0044] A: Add 1 times of water to the glyphosate original drug by mass, and then add potassium carbonate, so that the molar ratio of glyphosate to potassium ions is 1:1.2, and the reaction temperature is controlled at 60°C during the reaction;

[0045] After the B reaction is complete, add functional fillers, special additives for glyphosate potassium salt, and colorants to the material, and stir evenly;

[0046] The dosage of the special auxiliary agent for glyphosate potassium salt is 15% of the glyphosate salt quality.

[0047] Preparation of C granules: transfer the material to a spray granulator through a spray gun to make granules, dry to a moisture content of 0.55%, sieve, and pack.

[0048] After the material in the B step is uniformly stirred, the solid content is 30%.

[0049] The functional filler in the present invention refers to substances with auxiliar...

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Abstract

The invention provides a process for directly preparing trisodium phosphate by using a glyphosate mother solution, which aims at effectively recovering a phosphor resource in a mother solution to prepare trisodium phosphate. The preparation process is characterized in that after the glyphosate mother solution is subjected to catalysis and air oxidation, organophosphorus in the mother solution is oxidized into orthophosphate ions, then sodium hydroxide or soda is added into the mother solution to regulate the pH value to 9-10, the temperature is lowered to minus 5 DEG C to 8 DEG C under the condition of agitating to achieve crystallization, and separation, washing and drying are performed, as a result, the trisodium phosphate is obtained. The preparation process is simple and easy to achieve industrial application, the obtained trisodium phosphate is widely used, besides, difficulty in meeting the drainage standard of the terminal treatment of the glyphosate mother solution is lowered, and further the treatment of solid waste is reduced.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a production process of glyphosate salt granules. Background technique [0002] The herbicidal properties of glyphosate (glyphosate) were discovered by D.D. Baird and others in the United States in 1971. It was developed and produced by Monsanto. By the 1980s, it had become an important variety of herbicides in the world. It is the most widely used herbicide in the world, and its sales account for 10% of the world pesticide market, 20% of the herbicide market, and 40% of the post-emergence herbicide market. With the popularization and planting of glyphosate-resistant crops, the application of this agent will be further expanded. Since glyphosate is insoluble in common organic solvents, its pure ammonium salt is a white solid, which is often processed into granules for use, and the color varies according to product requirements. Glyphosate ammonium salt granule is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/12A01N57/20A01P13/00C05G3/00
Inventor 姜永红阮冬冬罗仲铭
Owner SICHUAN LESHAN FUHUA TONGDA AGRO-CHEM TECH CO LTD
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