Preparation method of glyphosate isopropylamine salt aqueous solution

A technology for glyphosate isopropylamine salt and isopropylamine, which is applied in the field of preparation of glyphosate isopropylamine salt solution, can solve the problems of flammability and volatility, poor performance of isopropylamine salt, high preparation process requirements, etc. , The effect of reducing surface tension and stabilizing process technology

Pending Publication Date: 2021-10-08
JIANGSU TENGLONG BIOLOGICAL PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As we all know, ammonium salt and isopropylamine salt of glyphosate have better herbicidal effects, but because isopropylamine has a low boiling point, is flammable and volatile, and b

Method used

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  • Preparation method of glyphosate isopropylamine salt aqueous solution

Examples

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Comparison scheme
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Example Embodiment

[0023] Cooperate figure 1 As shown, the present invention provides a method of preparing a glyphosate isopropycemate saline agent, including the steps of:

[0024] Step 1, glyphosate primers in the molar ratio of 1: 1 to 1.2 were added to the reaction kettle with isopropylamine, and water added to the reaction kettle, the weight ratio of water and the mixture was 3 to 5: 1, mixed stirring After homogeneous, the reaction kettle temperature was adjusted to 10 to 20 ° C for 20 to 45 min;

[0025] In the step 1, each ingredient can be mixed once, and it is also added to the addition;

[0026] Step 2, the mixture obtained by step 1 is poured out and filtered over 100 to 180 mesh, and filtered, filtered, and then placed in the reactor;

[0027] Step 3, continue to add auxiliaries and water to the reactor, at which time the auxiliary agent and the mixture of water and mixtures are 1.5 to 3: 7 to 10: 1, and the reaction kettle temperature is adjusted to 12-23 ° C, stirring 5-10 min, glyph...

Example Embodiment

[0028] Example 1

[0029] Step 1, glyphosate primers having a molar ratio of 1: 1.1 were added to the reactor with isopropylamine, and the weight ratio of the aforementioned mixture was added to the reaction kettle, and the mixture was mixed and stirred. The reaction kettle temperature was adjusted to 10 ° C for 45 min;

[0030] Step 2, the mixture obtained by step 1 is poured out and filtered through a 120 mesh filter, and the filtered mixture was then placed in the reaction kettle;

[0031] Step 3, continued to add ST-90 penetrant and water to the reactor, and the mass ratio of the ST-90 penetrant and the mixture added at this time is 1.5: 8: 1, and the reaction kettle temperature is adjusted to 20 ° C, stir 5 min, glyphosate isopropamine saline.

Example Embodiment

[0032] Example 2

[0033] Step 1, a glyphosate primary drug having a molar ratio of 1: 1 is added to the reaction kettle, and the weight ratio of the aforementioned mixture is added to the reaction kettle, and the mixture is uniform, and the reaction will react The kettle temperature was adjusted to 12 ° C, maintained 40 min; then added a molar ratio of 1: 1.15 to isopropylamine to the reactor, and then added with the addition of the molar ratio of 1: 1.15. The weight ratio of isopropylamine is 4: 1, and the temperature of the reactor is maintained at 12 ° C for 20 min;

[0034] Step 2, the mixture obtained in step 1 is poured out and filtered through the 110 mesh filter, and the filtered mixture was then placed in the reaction kettle;

[0035] Step 3, continued to add TAE surfactants and water to the reactor. At this time, the mass ratio of TAE surfactant and water to the mixture is 1.5: 10: 1, and the reaction kettle temperature is adjusted to 23 ° C, stirred for 7 min, Glyphosa...

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Abstract

The invention discloses a preparation method of a glyphosate isopropylamine aqueous solution. The preparation method comprises the following steps: 1, mixing and stirring a glyphosate active compound, isopropylamine and water according to a molar ratio of 1: 1-1.2, and a weight ratio of the mixture of the glyphosate active compound and the isopropylamine to the water being 1: 3-5; 2, pouring out the mixture obtained in the step 1, filtering, and putting into a reaction kettle; and 3, continuing to add an auxiliary agent and water into the reaction kettle, controlling the mass ratio of the added auxiliary agent and water to the mixture in the step 2 at (1.5-3): (7-10): 1, and stirring to obtain the glyphosate isopropylamine salt aqueous solution, wherein the auxiliary agent is an ST-90 penetrating agent or a TAE surfactant. The glyphosate isopropylamine salt aqueous solution prepared by the preparation method has relatively good permeability, moisture retention, adhesiveness and adhesiveness, so that the comprehensive drug effect of the product is improved.

Description

technical field [0001] The invention belongs to the field of herbicide preparation technology, in particular to a preparation method of glyphosate isopropylamine saline solution. Background technique [0002] Glyphosate is a high-efficiency, low-toxicity, low-residue post-emergent high-efficiency herbicide. At present, the production forms of glyphosate mainly include 10% glyphosate water solution and 30% glyphosate amine saline solution , 41% glyphosate isopropylamine salt solution, 62% glyphosate isopropylamine salt, 68% glyphosate amine salt soluble granule and 50% glyphosate ammonium salt soluble powder, etc. [0003] As we all know, ammonium salt and isopropylamine salt of glyphosate have better herbicidal effects, but because isopropylamine has a low boiling point, is flammable and volatile, and belongs to Class B fire hazards, it has high requirements for the preparation process and the production process The performance of the isopropylamine salt formed is relativel...

Claims

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Application Information

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IPC IPC(8): A01N57/20A01N25/30A01N25/02A01P13/00
CPCA01N57/20A01N25/30A01N25/02
Inventor 肖建中
Owner JIANGSU TENGLONG BIOLOGICAL PHARMA
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