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Calcium cyanamide and niclosamide ethanolamine salt compounded dispersible oil suspension agent, and preparation method and application thereof

A technology of niclosamide ethanolamine salt and calcium cyanamide, which is applied in the field of pesticides, can solve the problems of large usage, dust human poisoning, polluted soil and water quality, etc., and achieves the effects of reducing usage and cutting off the source of infection.

Inactive Publication Date: 2017-08-18
JIANGSU ESSENCE AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most molluscicides on the market are mainly niclosamide ethanolamine salt and its compound drug with metaldehyde. In recent years, the dosage forms have gradually been enriched, including wettable powder, suspension, and granules. etc., but this type of drug is used in a large amount, and excessive use will pollute the soil and water quality and have a toxic effect on rain. However, calcium cyanamide, which has molluscicide effect, has not yet been registered for the control of schistosomiasis. It has been reported in the literature that calcium cyanamide does not pollute the soil and is environmentally friendly after use. However, calcium cyanamide is generally an industrial powder and acts directly on it. On the one hand, it will cause dust drift and cause harm to the human body. The fineness is far from meeting the requirements of fine control, and the performance of drug efficacy is therefore affected.

Method used

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  • Calcium cyanamide and niclosamide ethanolamine salt compounded dispersible oil suspension agent, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] Take 15% calcium cyanamide + 0.3% niclosamide ethanolamine salt oil dispersion suspending agent as an example, use emulsifier 5% alkyl phosphate salt, 10% alkylphenol polyoxyethylene ether compound, disperse wetting agent 1% lignosulfonate is selected, the thickener is composed of 0.5% white carbon black and 1% organic bentonite, supplemented by methyl oleate.

[0024] Add emulsifier, dispersing wetting agent, and dispersing medium into the reaction kettle, mix and disperse evenly; add thickener, niclosamide ethanolamine salt, and calcium cyanamide under high-speed shearing state, and sand under the grinding medium of zirconium beads Grind until the particle size is less than 5 μm to prepare a dispersible oil suspension containing niclosamide ethanolamine salt and calcium cyanamide.

[0025] The detection suspension rate is above 90%, heat storage (54 ℃ for two weeks), there is a slight phenomenon of water separation, and the active ingredients have no decomposition phe...

example 2

[0027] Taking 20% ​​calcium cyanamide + 0.4% niclosamide ethanolamine salt oil dispersion suspension as an example, the emulsifier 5% calcium dodecylbenzenesulfonate, 5% alkylphenol formaldehyde resin polyoxyethylene ether, 5% % castor oil polyoxyethylene ether, 1% alkylnaphthalene sulfonate as dispersing and wetting agent, 0.5% white carbon black and 1% organic bentonite as thickener, supplemented by methyl oleate.

[0028] Add emulsifier, dispersing wetting agent, and dispersing medium into the reaction kettle, mix and disperse evenly; add thickener, niclosamide ethanolamine salt, and calcium cyanamide under high-speed shearing state, and sand under the grinding medium of zirconium beads Grind until the particle size is less than 5 μm to prepare a dispersible oil suspension containing niclosamide ethanolamine salt and calcium cyanamide.

[0029] The detection suspension rate is above 92%, heat storage (54 ℃ for two weeks), there is a slight phenomenon of water separation, an...

example 3

[0031] Taking 18% calcium cyanamide + 8% niclosamide ethanolamine salt oil dispersion suspending agent as an example, the emulsifier 5% castor oil polyoxyethylene ether, 5% alkyl phosphate salt, 5% dodecylbenzene Calcium sulfonate, 1% fatty alcohol polyoxyethylene ether is used as the dispersing and wetting agent, 1% white carbon black and 1% organic bentonite are used as the thickener, and epoxy soybean oil is added.

[0032] Add emulsifier, dispersing wetting agent, and dispersing medium into the reaction kettle, mix and disperse evenly; add thickener, niclosamide ethanolamine salt, and calcium cyanamide under high-speed shearing state, and sand under the grinding medium of zirconium beads Grind until the particle size is less than 5 μm to prepare a dispersible oil suspension containing niclosamide ethanolamine salt and calcium cyanamide.

[0033] The detection suspension rate is above 90%, heat storage (54 ℃ for two weeks), there is a slight phenomenon of water separation, ...

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Abstract

The invention relates to the technical field of pesticides, in particular to a calcium cyanamide and niclosamide ethanolamine salt compounded dispersible oil suspension agent, and a preparation method and application thereof. The dispersible oil suspension agent is prepared from 0.3 to 30 percent of niclosamide ethanolamine salt, 5 to 50 percent of calcium cyanamide, 1 to 4 percent of dispersing wetting agents, 12 to 16 percent of emulsifying agents, 1 to 2 percent of thickening agents and the balance of oil bases. According to the preparation method, the niclosamide ethanolamine salt and the calcium cyanamide are compounded; after the niclosamide ethanolamine salt and the calcium cyanamide are compounded, the effect of killing oncomelania by niclosamide in the traditional meaning is realized; the effect of killing schistosome ova is also achieved; the compounding among auxiliary agents is reasonably used; the stable oil suspension preparation is realized; the difficult problem of the compounding of the calcium cyanamide and the niclosamide ethanolamine salt is solved.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a compounded dispersible oil suspension of calcium cyanamide and niclosamide ethanolamine salt, a preparation method and an application thereof. Background technique [0002] Calcium ammonia, also known as lime nitrogen, molecular formula: CaCN 2 , molecular weight 80.10, the industrial product is gray-black very fine particles, slightly soluble in water, the powder is easy to absorb moisture and agglomerate and deteriorate, so it should be stored dry. N content: about 20%. Its melting point is: 1573k. It is used to make cyanide melt and cyanide, and to prepare dicyandiamide, melamine, and thiourea. It is also suitable for alkaline nitrogen-containing fertilizers and used to kill schistosomiasis. It not only has good mollusc killing effect, but also finally decomposes into ammonia in water And carbon dioxide, will not affect the environment and aquatic organisms, and can al...

Claims

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Application Information

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IPC IPC(8): A01N59/06A01N37/40A01N25/04A01P9/00
CPCA01N59/06A01N25/04A01N37/40A01N2300/00
Inventor 梁晓天石伟山奚军郭家钢
Owner JIANGSU ESSENCE AGROCHEM
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