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Glyphosate water-soluble tablet and preparation method thereof

A glyphosate, water-soluble technology, applied in the field of pesticides, can solve the problems of high packaging, storage and transportation costs, low content of active ingredients in water preparations, and harmful health of operators, and achieves improved environmental safety, low water content, The effect of less investment in equipment

Inactive Publication Date: 2013-03-27
HANGZHOU JINFADA CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low content of active ingredients in water preparations, it is difficult to measure, and the cost of packaging, storage and transportation is high, which is uneconomical
Patent application number 02119480.7 discloses a soluble solid dosage form of glyphosate salt, which solves the above problems, but due to the long reaction cycle, large dust, environmental pollution and harmfulness to the operator’s health during the production process of the soluble solid dosage form

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1) Dosing according to the following weight percentages:

[0042] Glyphosate technical (active ingredient ≥95%) 20%, potassium carbonate (disintegrant) 32%, tallow amine polyoxyethylene ether (surfactant) 10%; lignin (surfactant) 10%, water soluble Starch (binder) 1%, ammonium sulfate (filler) 27%;

[0043] 2) Grind the raw materials to 40 mesh first, then mix according to the stated ratio, then add 0.5% water of the total raw materials, and finally use a tablet machine to form tablets, dry them and pack them to obtain glyphosate Phosphine water soluble tablet.

[0044] The disintegrant in embodiment 1 can adopt one or more in sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, ammonium carbonate, ammonium bicarbonate, citric acid, phosphoric acid, oxalic acid and succinic acid; The active agent can be alkyl polysaccharides, sodium dodecylbenzene sulfonate, sodium lignin sulfonate, naphthalene sulfonate, polyoxyethylene, polyhydric alcoho...

Embodiment 2

[0047] 1) Dosing according to the following weight percentages:

[0048] Glyphosate ammonium salt (active ingredient ≥95%) 60%, sodium carbonate 10%, citric acid 13.5%, K 12 3%, APG5%, NNO1.5%, urea 6%, xanthan gum 1% (2% xanthan gum aqueous solution);

[0049] 2) The above-mentioned raw materials are crushed to 60 mesh first, then mixed according to the above-mentioned ratio, and finally compressed into tablets with a tablet machine, dried and packaged to obtain glyphosate water-soluble tablets.

[0050]

Embodiment 3

[0052] 1) Dosing according to the following weight percentages:

[0053] Potassium glyphosate (active ingredient ≥95%) 50%, citric acid 20%, sodium carbonate 15%, sodium lauryl sulfate 3%, lignin 5%, polyethylene glycol 3%, sodium tripolyphosphate 4%;

[0054] 2) Grind the raw materials to 100 mesh first, then mix according to the stated ratio, then add 1% water of the total raw materials, and finally use a tablet machine to form tablets, dry them and pack them to obtain glyphosate Phosphine water soluble tablet.

[0055]

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PUM

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Abstract

The invention discloses a glyphosate water-soluble tablet and a preparation method thereof and belongs to the technical field of pesticides. The glyphosate water-soluble tablet is characterized by comprising, by weight, 10% to 80% of glyphosate acids and / or glyphosate salts, 5% to 40% of disintegrating agents, 5% to 20% of surface active agents, 0% to 60% of fillers and 0% to 5% of adhesion agents. Compared with various novel glyphosate granules in a current market, the glyphosate water-soluble tablet has the advantages that the processing is simple, the moisture content is extremely low, the energy consumption of a drying process is reduced, the equipment investment is small, drifted dusts in processes of processing and packaging the glyphosate granules are reduced by the aid of one-time forming of the glyphosate water-soluble tablet, the problem of difficult absorption of tail gases and dusts is solved, the screening process is omitted, the reworking rate is reduced, the environment-friendly safety is improved, the glyphosate water-soluble tablet belongs to a novel glyphosate preparation, and simultaneously the packaging, transporting and storing costs are greatly lowered.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a water-soluble glyphosate tablet and a preparation method thereof. Background technique [0002] Glyphosate is the systemic herbicide with the largest sales volume and the fastest growth rate in the world, and with the successful development and popularization of glyphosate-transgenic crops and the shortage of energy sources, it has led to the sowing and promotion of biofuel crops. The production of phosphine offers new opportunities. [0003] The commonly used glyphosate formulations are 41% glyphosate isopropylamine saline, 30% ammonium saline and soluble powder. Due to the low content of active ingredients in the aqueous solution, it is difficult to measure, and the cost of packaging, storage and transportation is high, which is uneconomical. Patent application number 02119480.7 discloses a soluble solid dosage form of glyphosate salt, which solves the above ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/20A01N25/34A01P13/00
Inventor 孔鑫明蒲建国周海杨刘劭农李斌邓青松程晨杰李竞钱文飞熊齐春汤晓娟孙晓昂
Owner HANGZHOU JINFADA CHEM IND
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