Aju water dispersion granule and production method thereof

A technology of disperse granules and additives, which is applied in the field of new pesticide formulations, and can solve problems such as pollution, affecting drug efficacy, and dust polluting the environment

Inactive Publication Date: 2004-04-14
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic solvent content of the above-mentioned emulsifiable concentrates is as high as 90%, and the widespread use of emulsifiable concentrates causes organic solvents to pollute the environment, and also wastes valuable organic resources on the other hand
Dust pollutes the environment during the production of wettable powder, and more importantly, the suspension rate of wettable powder is generally about 70%, which affects the efficacy of the drug
Microemulsion is a new dosage form with water as the medium. However, in addition to adding about 20% of emulsifier, it also needs to add 30% of cosolvent and stabilizer. The sum of the three accounts for more than 50% of the entire preparation, and the manufacturing technology has advanced Certain requirements, poor grasp, difficult to guarantee stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 0.5-2% Achrysanthemum (abamectin-beta-cypermethrin water-dispersible granule pesticide preparation (calculated by weight percentage):

[0035] Abamectin: 0.05-1%;

[0036] Beta-cypermethrin: 0.05-5%;

[0037] Auxiliary A, for example, choose one of benzene, toluene, and xylene, and the addition amount is 1-5%;

[0038] Emulsifier, such as Nongru 0203 or Tween 60 or Tween 80 and calcium dodecylbenzenesulfonate mixed milk, addition amount: 1-5%;

[0039] Carrier chemical fertilizer, for example, choose from urea or total nitrogen type mixed fertilizer composed of urea and ammonium chloride or urea and ammonium sulfate, adding amount: 70-95%.

[0040] It is processed into granules according to the adsorption method and coating method.

[0041] (6) Quality inspection: according to the national standard for compound pesticides (the same below).

Embodiment 2

[0043] The preparation of 4-6% Achrysanthemum (abamectin-beta-cypermethrin) water-dispersible granule pesticide (calculated by weight percentage):

[0044] Abamectin: 0.5-3%;

[0045] Beta-cypermethrin: 1-7%;

[0046] Auxiliary A: For example, choose one of the mixed auxiliaries composed of toluene and dimethyl sulfoxide or xylene and N, N-dimethylformamide, the addition amount: 2-7%;

[0047] Emulsifier, for example, choose one of the mixed emulsifiers composed of Nongru 0203, Tween 60 or Tween 80 and Span-40 or Span-80, adding amount: 5-7%;

[0048] Auxiliary B, for example, choose one of diatomaceous earth or starch, adding amount: 1-2%

[0049] The carrier chemical fertilizer is prepared according to the following method: calculated by pure N, phosphorus pentoxide and potassium oxide=1:0.5:1 or 1:1:1, and the addition amount is 70-95%.

[0050] Granulation and quality inspection methods are the same as in Example 1.

Embodiment 3

[0052] 8-10% Abamectin-beta-cypermethrin water-dispersible granule (by weight percentage), calculates by 100 kilograms of preparation products:

[0053] Abamectin: 2-5% (2-5 kg);

[0054] Beta-cypermethrin: 2-8% (2-8 kg);

[0055] Auxiliary A, choose one of the mixed auxiliaries composed of toluene, toluene and dimethyl sulfoxide, tert-butanol and dimethyl sulfoxide, the addition amount: 3-7% (3-7 kg);

[0056]Auxiliary B, choose one of diatomite, sodium lignosulfonate, kaolin, addition amount: 1-3% (1-3 kg); emulsifier, such as Nongru 0203, Tween 60 or Tween 80 and calcium dodecyl benzene sulfonate or sodium dialkyl benzene succinate can be selected as one of the mixed emulsifiers, and the addition amount is 7-10% (7-10 kg);

[0057] The carrier chemical fertilizer is prepared according to the following method: in terms of pure N, phosphorus pentoxide and potassium oxide=1:0.5:1 or 1:0.5:1.5, addition amount (weight percentage): 70-95%.

[0058] Granulation and quality ins...

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PUM

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Abstract

The invention is a mixed pesticide combination of Avermectin and high-efficiency cyper- methrin. Its character: using fertilizer as carrier, and adding in assistant and emulsor to prepare into water granule with pesticide and fertilizer integrated; its components (wt%): Avermectin 0.05-5%; assistant A 1-10% and B 0.01-3%; emulsor 1-12%; fertilizer carrier 70-95%.

Description

technical field [0001] The invention belongs to the technical field of compound pesticides. It specifically relates to the application of avermectin and beta-cypermethrin to prepare a new pesticide dosage form and a production method thereof. Background technique [0002] Avermectin (avermectn) is a macrolide insecticidal antibiotic with high efficiency and broad-spectrum acaricidal and insecticidal activities, and has stomach poisoning and contact killing effects on mites and insects. Strong permeability, the liquid sprayed on the leaf surface quickly penetrates into the mesophyll to form numerous micro-sacs, the adults and nymphs of mites and insect larvae immediately appear paralyzed symptoms after eating and contacting the liquid, do not move, do not take It will die after 2-4 days. There is very little medicine left on the leaves, and it will be decomposed into non-toxic substances quickly, so it is less lethal to natural enemies. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/08
Inventor 谢九皋张国安
Owner HUAZHONG AGRI UNIV
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