Paraquat-containing water dispersible granule and preparation method

A technology of dispersible granules and paraquat, which is applied in botany equipment and methods, herbicides, algicides, biocides, etc. It can solve the problems of high toxicity to humans, easy ingestion and poisoning by users, and achieve good weeding effect , use the effect of safety

Inactive Publication Date: 2016-01-27
刘振宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are only water-based paraquat varieties on the market at present. Users are prone to accidental ingestion and poisoning. They are extremely toxic to humans, and there is no specific drug. The mortality rate of oral poisoning can reach more than 90%. Paraquat made into water dispersible granules has solved the problem of human poisoning

Method used

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  • Paraquat-containing water dispersible granule and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Select raw materials according to the following components, and mix them evenly: paraquat technical (weight percentage) 80g, wetting agent sodium lauryl sulfate 1g, dispersant fatty alcohol polyoxyethylene ether 4g, binder polyoxyethylene ether Ethylene glycol 2g, synergist white sugar 7g, disintegrant anhydrous sodium sulfate 6g;

[0043] (2) Crush the above materials to 300-500 mesh;

[0044] (3) Add 6-112 grams of water to the obtained powder for kneading, fully mix, then granulate and dry;

[0045] (4) Sieve the dried granules to obtain 95g of paraquat-containing water-dispersible granules with a content of 75%, and the remaining materials can be re-entered into the recycling process.

[0046] After inspection, the paraquat content in the prepared dispersible granules is 75.2% (weight percent), moisture 0.3% (weight percent), pH value 6.7, sieve rate (passing 75um) 98%, completely dissolved in water, lasting The foaming property is 17ml / 1min, the wetting time ...

Embodiment 2

[0048] (1) Select raw materials according to the following components and mix them evenly: 80g of paraquat technical (weight percentage), 1g of wetting agent sodium lauryl sulfate, 4g of dispersing agent alkylphenol polyoxyethylene ether, binder Starch 5g, diatomaceous earth 10%;

[0049] (2) Crush the above materials to 300-500 mesh;

[0050] (3) Add 6-112 grams of water to the obtained powder for kneading, fully mix, then granulate and dry;

[0051] (4) Sieve the dried granules to obtain 96g of paraquat-containing water-dispersible granules with a content of 75%, and the remaining materials can be re-entered into the recycling process.

[0052] After inspection, the paraquat content in the prepared dispersible granules is 75.2% (weight percent), moisture 0.3% (weight percent), pH value 6.9, sieve rate (through 75um) 98%, suspension rate 94%, long-lasting The foaming property is 15ml / 1min, the wetting time is 40s, and the accelerated heat storage stability is qualified.

Embodiment 3

[0054] (1) Select raw materials according to the following components, and mix them evenly: paraquat technical (weight percentage) 80g, wetting agent nonylphenol polyoxyethylene ether 1g, dispersant naphthalenesulfonic acid formaldehyde condensate 5g, filler lactose 14g %;

[0055] (2) Crush the above materials to 300-500 mesh;

[0056] (3) Knead the obtained powder with 6-12 grams of water, mix well, then granulate and dry;

[0057](4) Sieve the dried granules to obtain 96g of paraquat-containing water-dispersible granules with a content of 75%, and the remaining materials can be re-entered into the recycling process.

[0058] After inspection, the paraquat content in the prepared dispersible granules is 75.2% (weight percent), moisture 0.3% (weight percent), pH value 6.9, sieve rate (passing 75um) 98%, completely dissolved in water, lasting The foaming property is 9ml / 1min, the wetting time is 32s, and the accelerated heat storage stability is qualified. It should be note...

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Abstract

The present invention relates to a paraquat-containing water dispersible granule as a pesticide herbicide and a preparation method, and aims to solve the problem of animal poisoning in the production, storage and use process of paraquat-containing water dispersible granules in the prior art. The paraquat-containing water dispersible granule comprises the following components by weight: 5% to 95% of paraquat; 0.1% to 2% of a wetting agent; 3% to 8% of a dispersant; 1% to 35% of a disintegrant; 0.1% to 4% of a stabilizer; 0.1% to 4% of a binder and balance of filler. The paraquat-containing water dispersible granule prepared by the method has the characteristics of good herbicidal effect, fast disintegrating, good dispersion, less environmental pollution, safety for users, simple packaging, convenient storage and transportation and the like in using process.

Description

technical field [0001] The invention relates to a paraquat-containing water-dispersible granule and a preparation method thereof, in particular to a paraquat-containing water-dispersible granule for pesticide herbicides and a preparation method thereof. Background technique [0002] Paraquat, whose chemical name is 1-1-dimethyl-4-4-bipyridine cationic salt, is a fast-killing herbicide with contact and certain systemic effects. It can be quickly absorbed by the green tissue of plants, causing them to die. Has no effect on non-green organizations. In the soil, it quickly combines with the soil to purify, and is ineffective on plant roots, perennial rhizomes and perennial roots. It is a quick-acting contact-killing quaternary ammonium salt herbicide. The active ingredients have a strong destructive power on the chloroplast layer, so that photosynthesis and chlorophyll synthesis are quickly suspended, and the leaves begin to be damaged and discolored 2-3 hours after the drug ...

Claims

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Application Information

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IPC IPC(8): A01N43/40A01N25/14A01P13/00
Inventor 刘振宇
Owner 刘振宇
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