High purity glyphosate ammonium salt raw powder and its production method

A glyphosate ammonium salt, high-purity technology, applied in the fields of botanical equipment and methods, biocides, plant growth regulators, etc., can solve problems to be researched and developed, and achieve good mixing performance, low production cost, and high content high effect

Inactive Publication Date: 2003-02-05
张鸿秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-concentration, high-purity, water-soluble glyphosate dosage forms still need to be researched and developed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] React 306Kg (1.719Kmol) of glyphosate technical material with a purity of 95% and 204Kg (3Kmol) of ammonia water with a concentration of 25% in a 3000L enamel reactor, and add SDP (or SD) natural plants with a purity of more than 90% Source additives (commercially available products, such as the products produced and sold by Nantong Feitian Chemical Industry Co., Ltd.), add 3% to salt, then filter with a 1200L suction tank, and then dry with an airflow dryer , The filtrate obtained after filtration is spray-dried to obtain high-purity glyphosate ammonium salt former powder 303.6Kg (1.599Kmol). Among them, ammonia water is transported by the side of the pipe with an infusion pump. The obtained glyphosate ammonium salt raw powder contains more than 98% of the glyphosate ammonium salt, and the drying loss is less than or equal to 1.0%.

[0012] The above-mentioned high-purity glyphosate ammonium salt raw powder product is in the form of solid powder, which can be used as ...

Embodiment 2

[0014] React 296.4Kg (1.719Kmol) of glyphosate technical material with a purity of 98% and 255Kg (3Kmol) of ammonia water with a purity of 20% in a 3000L enamel reactor, and add SDP natural plant-derived additives with a purity of 92%. 5% into salt, then filter with filter equipment, and then dry with a dryer, and the filtrate obtained after filtration is spray-dried, so that more than 98% of ultra-high-purity ammonium glyphosate can be obtained Original powder 298.8Kg (1.574Kmol), drying loss ≤ 1.0%.

Embodiment 3

[0016] 299.7Kg (1.719Kmol) of glyphosate technical substance with a purity of 97% and 182.2Kg (3Kmol) of ammonia water with a concentration of 28% are mixed in a reaction kettle, and a 91% SDP (or SD) natural plant source auxiliary agent is added, Add 4% to salt, then filter with a suction filter, and then dry with an airflow dryer, and the filtrate obtained after filtration is spray-dried to obtain 97% high-purity glyphosate Ammonium salt raw powder 296.4Kg (1.545Kmol). Among them, ammonia water is transported by the side of the pipe with an infusion pump.

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Abstract

The present invention discloses a high-purity glyphosate ammonium salt raw powder and its production method. It is characterized by that the glyphosate ammonium salt contnet is 95-99%, the decrement due to drying is less than or equal to 1.0% and glyphosate acid content is above 88%. Its production method incldues the following steps: making glyphosate raw material and ammonia produce reaction, adding natural adjuvant to form salt, filtering and drying so as to obtain high-purity glyphosate ammonium salt raw powder whose purity is 95-99%. It is high in content, good in weeding effect, low-toxic and low in cost, etc.

Description

Technical field: [0001] The invention relates to an agricultural herbicide, which is a total herbicide, in particular to a glyphosate ammonium salt raw powder containing a high-purity glyphosate acid active ingredient and a production method thereof. Background technique: [0002] Glyphosate is widely favored by customers at home and abroad for its high efficiency, low toxicity, low residue and environmental safety. The annual use of glyphosate in the world is increasing at a rate of 20%, and the technical glyphosate is also The pesticide species with the largest export value of herbicides in my country. Its dosage form has become the leading variety among domestic herbicides. Glyphosate technical material has poor water solubility, and the common method to solve the problem is to form salt. Glyphosate salts include sodium salt, ammonium salt, dimethylamine salt, isopropylamine salt, potassium salt, etc. The market for dimethylamine salt is very small. Potassium salt raw ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/12A01N57/10
Inventor 张鸿秀
Owner 张鸿秀
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