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Glyphosate choline active compound and preparation, and preparation method thereof

A technology of glyphosate and choline, applied in botany equipment and methods, herbicides and algicides, chemical instruments and methods, etc., to achieve the effects of no three wastes discharge, high application value, and high safety factor

Active Publication Date: 2015-01-14
SHANDONG WEIFANG RAINBOW CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as we know, there is no report on the technology of glyphosate choline technical drug and its preparation.

Method used

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  • Glyphosate choline active compound and preparation, and preparation method thereof
  • Glyphosate choline active compound and preparation, and preparation method thereof
  • Glyphosate choline active compound and preparation, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0037] Add 1389g choline aqueous solution (choline content is 50%) and 1000g glyphosate former medicine (content 97%) in the 1L reactor that stirring, cooling and vacuum distillation device are housed, stir and make it react, during the reaction Heat is released, and the reaction temperature quickly rises to 45°C. Continue to stir and react at a constant temperature of 46~50°C for 30 minutes. The weeding effect is not good, so the reaction solution is generally processed to prepare the original drug of glyphosate choline. The reaction solution treatment process is as follows: the reaction solution is concentrated under the pressure of -0.08~-0.09Mpa until the boiling point is 125°C stop, then lower the temperature to 40°C for crystallization, filter, wash, and dry at 60°C after crystallization to obtain 1591g of the original drug of glyphosate choline, and the content of glyphosate choline in the original drug is 98.1%.

Embodiment 1-2

[0039] Add 1192g choline aqueous solution (choline content is 60%) and 1000g glyphosate former medicine (content 97%) in the 1L reactor that stirring, cooling and vacuum distillation device are housed, stir and make it react, during the reaction Heat is released, and the reaction temperature quickly rises to 45°C. Continue to stir and react at a constant temperature of 47-51°C for 35 minutes. The resulting aqueous solution can be used as an aqueous solution of glyphosate choline. The effect is not good, so generally this reaction solution is processed to prepare the original drug of glyphosate choline. The reaction solution treatment process is as follows: the reaction solution is concentrated under the pressure of -0.08~-0.09Mpa until the boiling point is 130°C Stop, then lower the temperature to 45°C for crystallization, filter, wash, and dry at 60°C after crystallization to obtain 1609g of glyphosate choline, the content of glyphosate choline in the original drug is 98.0%. ...

Embodiment 1-3

[0041] Add 1041g choline aqueous solution (choline content is 70%) and 1000g glyphosate former medicine (content 97%) in the 1L reactor that stirring, cooling and vacuum distillation device are housed, stir and make it react, during the reaction Heat is released, and the reaction temperature quickly rises to 45°C. Continue to stir and react at a constant temperature of 48-52°C for 45 minutes. The resulting aqueous solution can be used as an aqueous solution of glyphosate choline. The effect is not good, so generally this reaction solution is processed to prepare the original drug of glyphosate choline. The reaction solution treatment process is as follows: the reaction solution is concentrated under the pressure of -0.08~-0.09Mpa until the boiling point is 130°C Stop, and then lower the temperature to 50°C for crystallization, filter, wash, and dry at 60°C after crystallization to obtain 1625g of glyphosate choline original drug, and the glyphosate choline content in the origin...

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Abstract

The invention discloses a glyphosate choline active compound and preparation, and a preparation method thereof. The preparation can be an aqueous solution or water-soluble granules. The content of the glyphosate choline in the preparation is 5-95 wt%, preferably 15-90 wt%, further preferably 35-90 wt%, most preferably 50-90 wt%, further most preferably 55-90 wt% and optimally 80 wt%. The preparation method comprises the following steps: simple technique, has the advantages of, high economy and safety, accessible raw materials and environment friendliness; and the prepared glyphosate choline active compound has the advantages of identical efficacy to glyphosate, environment friendliness and high purity, can be used for preparing different types of preparations, and especially can be used for preparing preparations with high drug content. The active compound and preparation have the advantages of stable physico-chemical properties and high water solubility, and can be used for preparing preparations with high drug content; and the preparation does not deteriorate or deform when being heated or extruded, and thus, has high stability.

Description

technical field [0001] The invention relates to a pesticide herbicide and a preparation method thereof, in particular to a glyphosate choline technical material, an aqueous solution, a soluble granule and a preparation method thereof. Background technique [0002] Glyphosate is a non-selective, non-residual herbicide that kills perennial root weeds and is widely used in rubber, mulberry, tea, orchards and sugarcane fields. Glyphosate was initially used in rubber gardens to control thatch and other weeds, which can make rubber tapping one year earlier and increase the production of old rubber trees. It is now gradually being used in forestry, orchards, mulberry gardens, tea gardens, rice-wheat, rice and rapeseed rotations, etc. place. Various weeds have different sensitivity to glyphosate, so the dosage is also different. For example, annual weeds such as barnyardgrass, green foxtail, goosegrass, crabgrass, and cattail, the dosage is calculated as 6~10.5 g / 100m; the dosage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/38C07C213/08C07C215/40A01N57/20A01N25/14A01N25/02A01P13/00
CPCA01N25/02A01N25/14A01N57/20C07C213/08C07F9/3813C07C215/40
Inventor 孙国庆侯永生吴勇陈帅姬广飞
Owner SHANDONG WEIFANG RAINBOW CHEM
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