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Glyphosate isopropyl amine salt solution preparation method

A technology of glyphosate isopropylamine salt and isopropylamine, which is applied in the preparation of glyphosate isopropylamine salt solution and the field of herbicide composition, can solve the problems of easy poisoning, explosion, and volatility, and reduce production costs , good physical stability and safe production environment

Inactive Publication Date: 2006-01-11
SICHUAN DIMEITE BIOLOGICAL SCI & TECH
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  • Application Information

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Problems solved by technology

In addition, due to the low boiling point of isopropylamine, only 32.4°C, flammable and volatile, it belongs to Class B fire hazards, and the maximum allowable concentration in the operating place is only 5PPM
Isopropylamine is highly alkaline, and the reaction with glyphosate ortho acid is a very violent exothermic reaction, which can easily lead to the volatilization of isopropylamine, which not only increases production costs, but is also prone to poisoning, combustion, and explosion hazards

Method used

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  • Glyphosate isopropyl amine salt solution preparation method
  • Glyphosate isopropyl amine salt solution preparation method
  • Glyphosate isopropyl amine salt solution preparation method

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Embodiment Construction

[0019] The following introductions are specific embodiments as the foregoing content of the present invention, and the foregoing content of the present invention will be further clarified through the embodiments. Of course, this should not be construed as limiting the scope of the foregoing subject matter of the present invention to the following examples.

[0020] The preparation method of glyphosate isopropylamine saline solution (see figure 1 ), including the following steps:

[0021] 1. Preparation of isopropylamine aqueous solution:

[0022] In a four-necked flask equipped with a thermometer, a stirrer, and a reflux condenser, add water according to the ratio shown in Attached Table 1, stir and keep the temperature below 30°C, add isopropylamine from the dropping funnel according to the ratio shown in Attached Table 1, Prepare different concentrations of isopropylamine aqueous solution for subsequent use;

[0023] 2. Preparation of glyphosate ammonia solution:

[0024...

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Abstract

The invention discloses a process for preparing the aqueous solution of glyphosate ipa salt and the its herbicide composition characterized by that, stirring and sustaining the temperature below 30 deg. C, dissolving glyphosate ortho acid into ammonia, and reacting with isopropyl amine aqueous solution to prepare glyphosate isopropyl amine salt aqueous solution, then filling auxiliary agent to produce the herbicide composition. In the herbicide composition, the quality content of glyphosate 2-aminopropane salt, ammonia, and auxiliary agent are 30%-50%, 2%-4%, and 5%-15%, the rest is water. The advantages of the invention are smooth and steady reaction, safety and reliability, economy and utility, and fine weed control effect.

Description

Technical field: [0001] The present invention relates to a herbicide used in agriculture, in particular to a preparation method of glyphosate isopropylamine saline solution and its herbicide composition. Background technique: [0002] Glyphosate is the pesticide with the largest output and sales in my country and the world. It is a broad-spectrum, high-efficiency, low-toxicity, and excellent environmental compatibility herbicide. It is widely used in orchards, tea gardens, rubber plantations, non-cultivated land and no-tillage weeding before sowing or harvesting of crops; especially after the promotion of glyphosate-resistant transgenic crops, it has opened up a broader market for glyphosate. Since glyphosate acid is insoluble in water, it is difficult for plants to absorb it. It must be converted into a water-soluble salt, and additives must be added to fully exert its medicinal effect, so that plants can absorb it through stems and leaves and conduct it to the point of act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/10A01N25/02
Inventor 王国成梁晓禽刘锐
Owner SICHUAN DIMEITE BIOLOGICAL SCI & TECH
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