Rotenone water dispersible granule and preparation method thereof

A technology of rotenone and dispersible granules, which is applied in the field of agricultural pesticides, can solve the problems of inconvenient packaging and transportation of suspending agents, poor fluidity, sticking to walls, etc., and achieves the effects of good storage and transportation stability, good fluidity, and saving storage and transportation costs.

Inactive Publication Date: 2017-02-08
广西世超生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, these water-dispersible granules produce dust, and the packaging and transportation of the suspension are inconvenient, and the storage is prone to precipitation, agglomeration, poor fluidity, sticking to the wall, etc.

Method used

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  • Rotenone water dispersible granule and preparation method thereof
  • Rotenone water dispersible granule and preparation method thereof
  • Rotenone water dispersible granule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method of the rotenone water-dispersible granule is as follows: add other components to the rotenone original drug, jet-pulverize or ultra-finely pulverize, the fineness reaches 185-300 mesh, obtain wettable powder, and then carry out granulation, wherein the granulation method includes But not limited to rotating disk granulation, extrusion granulation, adjusted mixing granulation, fluid bed granulation and compression granulation.

[0035] The materials used in the present invention are all commercially available, and those skilled in the art will understand that the practice of the present invention is not limited to these sources.

Embodiment 1

[0051] Embodiment 1: preparation of rotenone water-dispersible granules

[0052]Take 10g of the original drug of rotenone, 2.5g of sodium lauryl sulfate; 5g of lauryl polyoxyethylene ether phosphate C1618; 2g of powdered polyvinyl alcohol; 3g of bentonite Darun; 3g of Darun pesticide dispersant 600C, succinic acid 4g; kaolin 69.5g; after mixing, pulverize through a jet mill to make a powder (250 mesh), then extrude and granulate to obtain 10% rotenone water-dispersible granules (sample 1).

[0053] Take 30g of the original drug of rotenone, 2.5g of sodium lauryl sulfate; 5g of lauryl polyoxyethylene ether phosphate C1618; 2g of powdered polyvinyl alcohol; 3g of bentonite Darun; 3g of Darun pesticide dispersant 600C, succinic acid 4g; kaolin 49.5g; after mixing, pulverize through a jet mill to make a powder (250 mesh), then extrude and granulate to obtain 30% rotenone water-dispersible granules (sample 2).

[0054] Take 50g of rotenone original drug, 2.5g of sodium lauryl sulf...

Embodiment 2

[0057] Embodiment 2: thermal storage stability test

[0058] The rotenone water-dispersible granules (samples 1-5) of various concentrations mentioned above were taken for thermal storage stability test. Thereafter, the active ingredients of each sample were measured and tabulated below. All samples were performed in triplicate and the values ​​were averaged.

[0059] result:

[0060] Table 1: Thermal storage stability.

[0061]

[0062] The relative decomposition rate generally tends to increase with the concentration, but the relative decomposition rate of 65% rotenone water-dispersible granules is obviously higher than other samples.

[0063] Example 2: Dust Test

[0064] The above-mentioned samples 1-5 were taken for dust test, and all samples were carried out in triplicate, and the values ​​were averaged. The test results are as follows:

[0065]

[0066]

[0067] According to the Chinese standards for the determination of granular pesticide dust (GB / T 3036...

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Abstract

The invention relates to a rotenone water dispersible granule and a preparation method thereof. The rotenone water dispersible granule comprises the following components in percentage by weight: 10 to 90% of powdery rotenone, preferably 65%; 1 to 4% of wetting agent, preferably 2.5%; 2 to 7% of dispersant, preferably 5%; 1 to 4% of binder, preferably 2%; 2 to 5% of disintegrating agent, preferably 3%; 2 to 5% of suspending agent, preferably 3%; 3 to 6% of stabilizing agent, preferably 4%; and a carrier being added to 100%. The shortages that the conventional granule can generate dusts, the heat storage decomposition rate is high, and the generation of precipitate and blocks during the storage process is easy are overcome. The dust drifting is little when the provided rotenone water dispersible granule is used and transported, the loss and environmental pollution are avoided; the content of effective components is high, the granule is convenient to package, the storage and transportation cost is saved; the stability in storage and transportation is high; the phenomenon of layering, precipitation, and agglomeration during storage and transportation is avoided; furthermore, the granule is user-friendly, and can be rapidly disintegrated by adding the granule into water; and the dispersibility and suspension percentage are good.

Description

technical field [0001] The present invention generally belongs to the field of agricultural pesticides, and more specifically relates to rotenone water-dispersible granules and a preparation method thereof. [0002] Background of the invention [0003] Rotenone is an insecticide with formula C 23 h 22 o 6 . It exists in the roots of leguminous Deervine plants produced in tropical and subtropical regions of Asia, and it is also contained in some Chinese herbal medicines such as sweet melon seeds, bitter sandalwood seeds, and roots of Kunming Spatholobus. Rotenone widely exists in the root bark of plants. It is a highly specific substance in toxicology. It has strong contact and stomach poisoning effects on insects, especially cabbage butterfly larvae, diamondback moths and aphids. Early studies have shown that the mechanism of action of rotenone is mainly to affect the respiration of insects, and it mainly interacts with a certain component between NADH dehydrogenase and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N25/04A01N25/14A01P7/04
CPCA01N43/90A01N25/04A01N25/14
Inventor 卢洁石冠超韦永宏王越
Owner 广西世超生物科技有限公司
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