Paraquat-containing water dispersible granules and preparation method thereof

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 easy ingestion and poisoning by users, high toxicity to humans, etc., and achieve good weeding effect , use the effect of safety

Inactive Publication Date: 2012-04-18
吴希法
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, paraquat is only available in the market at present as a water formulation, which is easy for users to a...

Method used

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  • Paraquat-containing water dispersible granules and preparation method thereof
  • Paraquat-containing water dispersible granules and preparation method thereof
  • Paraquat-containing water dispersible granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Select raw materials according to the following components and mix them uniformly: 80g of paraquat technical (weight percentage), 1g of wetting agent sodium lauryl sulfate, 4g of dispersant fatty alcohol polyoxyethylene ether, binder polyoxyethylene ether Ethylene glycol 2g, synergist white sugar 7g, disintegrant anhydrous sodium sulfate 6g;

[0030] (2) Pulverize the above materials to 300-500 mesh;

[0031] (3) Add 6-112 grams of water to the obtained powder to knead, fully mix, then granulate and dry;

[0032] (4) Sieve the dried granules to obtain 95 g of paraquat-containing water-dispersible granules with a content of 75%, and the remaining material can be re-entered into the recycling process.

[0033] After inspection, the content of paraquat in the prepared dispersible granules is 75.2% (weight percent), moisture 0.3% (weight percent), pH value 6.7, sieve rate (through 75um) 98%, fully dissolved in water, lasting The foaming property is 17ml / 1min, the wett...

Embodiment 2

[0035] (1) Select raw materials according to the following components, and mix them uniformly: 80 g of paraquat technical (weight percentage), 1 g of wetting agent sodium lauryl sulfate, 4 g of dispersant alkylphenol polyoxyethylene ether, binder Starch 5g, diatomaceous earth 10%;

[0036] (2) Pulverize the above materials to 300-500 mesh;

[0037] (3) Add 6-112 grams of water to the obtained powder to knead, fully mix, then granulate and dry;

[0038] (4) Sieve the dried granules to obtain 96 g of paraquat-containing water-dispersible granules with a content of 75%, and the remaining material can be re-entered into the recycling process.

[0039] After inspection, the content of paraquat 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%, durable The foaming property is 15ml / 1min, the wetting time is 40s, and the accelerated heat storage stability is qualified.

Embodiment 3

[0041] (1) Select raw materials according to the following components, and mix them uniformly: paraquat technical (weight percentage) 80g, wetting agent nonylphenol polyoxyethylene ether 1g, dispersant naphthalenesulfonic acid formaldehyde condensate 5g, filler lactose 14g %;

[0042] (2) Pulverize the above materials to 300-500 mesh;

[0043] (3) Add 6-12 grams of water to the obtained powder to knead, fully mix, then granulate and dry;

[0044] (4) Sieve the dried granules to obtain 96 g of paraquat-containing water-dispersible granules with a content of 75%, and the remaining material can be re-entered into the recycling process.

[0045] After inspection, the content of paraquat in the prepared dispersible granules is 75.2% (weight percent), moisture 0.3% (weight percent), pH value 6.9, sieving rate (passing 75um) 98%, fully dissolved in water, durable The foaming property is 9ml / 1min, the wetting time is 32s, and the accelerated heat storage stability is qualified. It ...

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Abstract

The invention relates to paraquat-containing water dispersible granules for pesticides and herbicides, and a preparation method for the paraquat-containing water dispersible granules. The invention aims to solve the problem of animal poisoning in the processes of producing, storing and using the conventional paraquat water dispersible granules. The paraquat water dispersible granules comprise the following components in percentage by weight: 5 to 95 percent of paraquat, 0.1 to 2 percent of wetting agent, 3 to 8 percent of dispersing agent, 1 to 35 percent of disintegrating agent, 0.1 to 4 percent of stabilizing agent, 0.1 to 4 percent of adhesive and the balance of filler. The paraquat water dispersible granules with the formula have the characteristics of good weeding effect, quick disintegration, high dispersibility, light pollution to environment, safety for users, simple packaging, convenience for storage and transportation and the like in the 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 are extremely destructive to the chloroplast membrane, so that photosynthesis and chlorophyll synthesis are quickly suspended, and the leaves begin to be damaged and discolored 2-3 hours after the drug is ...

Claims

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Application Information

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IPC IPC(8): A01N25/14A01N43/40A01P13/00
Inventor 吴希法吴昊
Owner 吴希法
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