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Method for preparing solid preparation by taking glufosinate-ammonium intermediate as raw material

A technology for solid preparations and intermediates, which is applied in the field of solid preparations for preparing glufosinate-ammonium salts, can solve the problems of affecting product quality and use, complicated preparation processes, and high production costs, and achieves reduction of equipment investment costs, simple and convenient operation, and ease of use. effect of operation

Inactive Publication Date: 2016-08-24
ZHEJIANG XINAN CHEM INDAL GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as we all know, the preparation process of glufosinate-ammonium is very complicated, involving the purification of glufosinate-ammonium acid, the treatment of by-products and the recovery and reuse of solvents, etc. The equipment requirements are high, the operation is cumbersome, and the production cost is high.
Moreover, glufosinate-ammonium has strong hygroscopicity, and its solubility in water is 1370g / L. It is easy to absorb moisture, deliquesce and agglomerate during processing, packaging and storage, which will affect the quality and use of the product.

Method used

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  • Method for preparing solid preparation by taking glufosinate-ammonium intermediate as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 75.4g content is 95% glufosinate hydrochloride, 21.6g content is 90% potassium hydroxide solid powder and 3g content is 98% sodium pyrophosphate solid powder mix homogeneously, pulverize, pack, promptly obtained 72.1 The water content of the glufosinate-ammonium potassium salt powder preparation is 0.9%, and the appearance is a uniform powder without agglomeration, and other indicators all meet the national specification requirements for preparation products. After 2 years of normal temperature storage test, the preparation has a water content of 1.5%, no agglomeration and abnormal changes in appearance, and other indexes are within the standard index range of the product. When users use it, they only need to pour the powder into water and stir it slightly to generate glufosinate-ammonium potassium salt for spraying.

Embodiment 2

[0033] 62.8g content is 95% glufosinate hydrochloride and 29.6g content is 96% potassium carbonate solid powder, and 5g glycoside auxiliary agent and 2.6g potassium chloride filler are mixed evenly, pulverized, compressed into tablets, packed, namely A 60% glufosinate-ammonium potassium salt tablet was obtained. The water content of the preparation is 0.7%, the appearance is a uniform powder without agglomeration, and other indicators all meet the national specification requirements for preparation products. After the preparation was stored at room temperature for 2 years, the water content was 2.5%, and there was no agglomeration or abnormal change in appearance, and other indexes were all within the standard index range of the product.

Embodiment 3

[0035] 41.9g content is 95% glufosinate hydrochloride and 32.7g content is 95% potassium bicarbonate solid powder, and 10g fatty alcohol polyoxyethylene ether sodium sulfate auxiliary agent and 15.4g potassium sulfate filler are mixed uniformly, pulverize , granulation, and packaging to obtain 40% glufosinate-ammonium potassium salt granules. The water content of the preparation is 0.7%, the appearance is a uniform powder without agglomeration, and other indicators all meet the national specification requirements for preparation products. After 2 years of room temperature storage test, the preparation has a water content of 2.0%, no agglomeration and abnormal changes in appearance, and other indexes are within the standard index range of the product.

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Abstract

The invention discloses a method for preparing a solid preparation by taking glufosinate-ammonium intermediate as a raw material. The invention provides the solid preparation which can be stably stored and can conveniently and easily obtain raw materials. Glufosinate-ammonium hydrochloride which is an intermediate compound in a glufosinate-ammonium preparation process is used as the raw material to prepare the solid preparation, and the solid preparation is blended with solid alkali, an assistant, filler and pyrophosphate. The raw material of the solid preparation is simple and easy to obtain, a complex step in a glufosinate-ammonium water soluble salt synthetic process is avoided, the technical process of glufosinate-ammonium production is greatly simplified, and the raw material and the energy consumption are reduced. In addition, the method is simple and convenient in operation, saves equipment investment, lowers the production cost of the preparation, and has high economic benefit and wide application prospect.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a method for preparing a solid preparation of glufosinate-ammonium salt using a glufosinate-ammonium intermediate as a raw material. Background technique [0002] Glufosinate-ammonium, usually refers to glufosinate-ammonium salt (the glufosinate-ammonium mentioned below refers to glufosinate-ammonium salt), is a high-efficiency, broad-spectrum, low-toxic non-selective herbicide, which can be used in orchards, It is the most concerned herbicide after glyphosate to control annual and perennial dicotyledonous and gramineous weeds in vineyards, non-cultivated land, and potato fields. At present, the glufosinate-ammonium preparations on the market are mainly aqueous solutions and soluble solvents, but the packaging and transportation costs of aqueous solutions and soluble liquid solutions are high, the measurement is inconvenient, and there are also problems such as flocculation, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/20A01N25/08A01N25/22A01N25/32A01N25/18C05G3/00A01P13/00
CPCA01N25/08A01N25/18A01N25/22A01N25/32A01N57/20C05G3/00
Inventor 秦龙陈静祝小红徐亚卿徐晓芳蒋辉白俊玲
Owner ZHEJIANG XINAN CHEM INDAL GROUP
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