阅读说明：本技术 一种含活性组份呋虫胺的可溶性粒剂及其制备方法 (Soluble granule containing dinotefuran as active component and preparation method thereof ) 是由 孟祥光 于 2018-07-26 设计创作，主要内容包括：一种含活性组份呋虫胺的可溶性粒剂及其制备方法,该含活性组份呋虫胺的可溶性粒剂包括呋虫胺、分散剂、润湿剂、粘结剂和载体,制备方法如下：将载体放入中间料仓中,通过超细粉碎机进行粉碎,将粉碎好的物料加入粘合剂进行造粒,得到基核；将呋虫胺、分散剂和润湿剂混合均匀后,喷包在基核表面,得到含活性组份呋虫胺的可溶性粒剂。优点是：安全、环保、使用方便,用于防治水稻害虫二化螟、蓟马。该剂型既克服了乳油、微乳剂中使用有机溶剂污染环境的问题,同时也克服了像可湿性粉剂这样生产和使用中粉尘大,造成污染环境的问题。(The soluble granule containing the dinotefuran as the active component comprises the dinotefuran, a dispersing agent, a wetting agent, a binder and a carrier, and the preparation method comprises the following steps: putting the carrier into an intermediate bin, crushing the carrier by an ultrafine crusher, adding an adhesive into the crushed material, and granulating to obtain a base core; the dinotefuran soluble granules containing the active component dinotefuran are obtained by uniformly mixing dinotefuran, a dispersing agent and a wetting agent and then spraying and coating the mixture on the surface of a basal core. The advantages are that: safe, environment-friendly and convenient to use, and is used for preventing and treating rice pests such as chilo suppressalis and thrips. The preparation formulation not only overcomes the problem that the environment is polluted by using an organic solvent in missible oil and microemulsion, but also overcomes the problem that the environment is polluted by large dust in production and use like wettable powder.)

1. A soluble granule containing an active component dinotefuran is characterized in that:

the components by weight percentage are as follows:

the content of dinotefuran is 0.01-2%, the content of dispersant is 1-20%, the content of wetting agent is 1-20%, the content of binder is 0.5-20%, and the content of carrier is 1-98%;

the dispersing agent is at least one of di-sec-octyl maleate sodium sulfonate, alkylphenol formaldehyde resin polyoxyethylene ether sulfate, styryl phenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether and alkylphenol polyoxyethylene ether; the wetting agent is at least one of alkylphenol polyoxyethylene polyether formaldehyde condensate sulfate, fatty alcohol sulfate, alkyl alcohol polyoxyethylene ether sodium sulfate, alkylphenol polyoxyethylene ether sodium sulfate, alkyl phosphate, sorbitan fatty acid ester, alkylphenol formaldehyde condensate polyoxyethylene ether, aryl sulfonate formaldehyde condensate, alkylphenol polyoxyethylene ether phosphate, phenethyl phenol polyoxyethylene ether phosphate, ethoxy alcohol, EP/PO block copolymer and polyoxyethylene alcohol ether;

the binder is at least one of polyvinylpyrrolidone, sodium carboxymethylcellulose, xanthan gum, carboxymethyl cellulose and polyvinyl alcohol;

the carrier is at least one of water-soluble starch, ammonium sulfate, ammonium bisulfate and anhydrous sodium sulfate.

2. The soluble granule containing dinotefuran as an active ingredient as claimed in claim 1, which is characterized in that:

the components by weight percentage are as follows: 0.06-2% of dinotefuran, 5-10% of dispersing agent, 1-20% of wetting agent, 0.5-20% of binder and 1-98% of carrier.

3. The soluble granule containing dinotefuran as an active ingredient as claimed in claim 1, which is characterized in that: the dispersing agent is one of di-sec-octyl maleate sodium sulfonate, alkylphenol formaldehyde resin polyoxyethylene ether sulfate and styryl phenol polyoxyethylene ether.

4. The soluble granule containing dinotefuran as an active ingredient as claimed in claim 1, which is characterized in that: the wetting agent is one of alkylphenol polyoxyethylene polyether formaldehyde condensate sulfate, alkyl phosphate and EP/PO block copolymer.

5. The soluble granule containing dinotefuran as an active ingredient as claimed in claim 1, which is characterized in that: the binder is one of sodium carboxymethylcellulose and polyvinyl alcohol.

6. The soluble granule containing dinotefuran as an active ingredient as claimed in claim 1, which is characterized in that: the carrier is water soluble starch, or a mixture of water soluble starch and ammonium sulfate, or water soluble starch and ammonium bisulfate.

7. A method for preparing the soluble granule containing the dinotefuran as the active ingredient as claimed in claim 1, which is characterized in that:

the method comprises the following specific steps:

putting the carrier into an intermediate bin, crushing the carrier by an ultrafine crusher, adding an adhesive into the crushed material, and granulating to obtain a base core; the dinotefuran soluble granules containing the active component dinotefuran are obtained by uniformly mixing dinotefuran, a dispersing agent and a wetting agent and then spraying and coating the mixture on the surface of a basal core.

8. A method for preparing the soluble granule containing the dinotefuran as the active ingredient as claimed in claim 1, which is characterized in that:

the method comprises the following specific steps:

metering a carrier, dinotefuran, a dispersing agent and a wetting agent, adding the metered carrier, dinotefuran, the dispersing agent and the wetting agent into a mixer, starting stirring, uniformly mixing, putting the mixture into an intermediate bin, crushing the mixture by using an ultrafine crusher, adding an adhesive into the crushed material, granulating, and drying to obtain the soluble granule containing the active component dinotefuran.

Technical Field

The invention belongs to the field of pesticide processing, and relates to application of a dinotefuran soluble granule serving as an agricultural insecticide and a preparation method thereof.

Background

The rice is one of the most important grain crops in China, the sowing area of the Chinese rice accounts for 1/4 of the grain crops in China, and the yield accounts for more than half. Insect pests seriously threaten the yield of rice, and the annual loss of the yield of the rice caused by the insect pests is about 10 percent. The insect pests such as chilo suppressalis and thrips are the most serious.

Dinotefuran, common english name: dinotefuran, chemical name: 1-methyl-2-nitro-3- (tetrahydro-3-furanmethyl) guanidine. Is a nicotine pesticide. The insecticidal composition has the characteristics of contact killing, stomach toxicity, quick action, long lasting period of 3-4 weeks, wide insecticidal spectrum, strong systemic property of roots and the like, can be quickly absorbed by roots and stem leaves of crops, and has excellent control effect on sucking mouth insects. The chemical structure of the pesticide is different from that of the existing nicotine pesticide, and the pesticide is a novel nicotine pesticide which acts on an acetylcholine receptor and can block the normal nerve transmission of insects. Dinotefuran has a very wide insecticidal spectrum, is very safe to crops, people and livestock and the environment, and is expected to become a worldwide large pesticide by matching with application methods with various purposes.

Disclosure of Invention

The invention aims to solve the technical problem of providing the dinotefuran soluble granule containing the active component and the preparation method thereof, which are safe, environment-friendly and convenient to use and are used for preventing and treating rice pests such as chilo suppressalis and thrips. The preparation formulation not only overcomes the problem that the environment is polluted by using an organic solvent in missible oil and microemulsion, but also overcomes the problem that the environment is polluted by large dust in production and use like wettable powder.

The technical scheme of the invention is as follows:

a soluble granule containing dinotefuran as an active component takes dinotefuran technical as the active component, and the soluble granule comprises the following components in percentage by weight:

0.01-2% of dinotefuran, 0.4-20% of dispersant, 1-20% of wetting agent, 0.5-20% of binder and 1-98% of carrier;

the dispersing agent is at least one of di-sec-octyl maleate sodium sulfonate, alkylphenol formaldehyde resin polyoxyethylene ether sulfate, styryl phenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether and alkylphenol polyoxyethylene ether;

the wetting agent is at least one of alkylphenol polyoxyethylene polyether formaldehyde condensate sulfate, fatty alcohol sulfate, alkyl alcohol polyoxyethylene ether sodium sulfate, alkylphenol polyoxyethylene ether sodium sulfate, alkyl phosphate, sorbitan fatty acid ester, alkylphenol formaldehyde condensate polyoxyethylene ether, aryl sulfonate formaldehyde condensate, alkylphenol polyoxyethylene ether phosphate, phenethyl phenol polyoxyethylene ether phosphate, ethoxy alcohol, EP/PO block copolymer and polyoxyethylene alcohol ether;

the binder is at least one of polyvinylpyrrolidone, sodium carboxymethylcellulose, xanthan gum, carboxymethyl cellulose and polyvinyl alcohol, and the dosage of the binder is familiar to those skilled in the art;

the carrier is at least one of water-soluble starch, ammonium sulfate, ammonium bisulfate and anhydrous sodium sulfate. The above carriers may be used alone or in admixture thereof.

Further, the composition comprises the following components in percentage by weight: 0.06% -2% of dinotefuran, 5% -7% of a dispersing agent, 1-6% of a wetting agent, 1-3% of a binder and 78% -87% of a carrier.

Further, the dispersing agent is one of di-sec-octyl maleate sodium sulfonate, alkylphenol formaldehyde resin polyoxyethylene ether sulfate and styryl phenol polyoxyethylene ether.

Further, the wetting agent is one of alkylphenol polyoxyethylene polyether formaldehyde condensate sulfate, alkyl phosphate and EP/PO block copolymer.

Further, the binder is one of sodium carboxymethylcellulose and polyvinyl alcohol.

Further, the carrier is water-soluble starch, or a mixture of the water-soluble starch and ammonium sulfate, or the water-soluble starch and ammonium bisulfate.

A preparation method of soluble granules containing an active component dinotefuran comprises the following specific steps:

putting the carrier into an intermediate bin, crushing the carrier by an ultrafine crusher, adding an adhesive into the crushed material, and granulating to obtain a base core; the dinotefuran soluble granules containing the active component dinotefuran are obtained by uniformly mixing dinotefuran, a dispersing agent and a wetting agent and then spraying and coating the mixture on the surface of a basal core.

A preparation method of soluble granules containing an active component dinotefuran comprises the following specific steps:

metering a carrier, dinotefuran, a dispersing agent and a wetting agent, adding the metered carrier, dinotefuran, the dispersing agent and the wetting agent into a mixer, starting stirring, uniformly mixing, putting the mixture into an intermediate bin, crushing the mixture by using an ultrafine crusher, adding an adhesive into the crushed material, granulating, and drying to obtain the soluble granule containing the active component dinotefuran.

The invention has the advantages that:

1) according to the invention, the qualified dinotefuran soluble granules are prepared by selecting the composition of the auxiliary agent, an organic solvent is not used, and meanwhile, the problem of dust in the production and packaging processes is solved, so that the preparation method is safe and environment-friendly; and has the characteristics of good dispersibility, high suspension rate and the like.

2) It is convenient for use and can be directly applied. The product water soluble granule has the characteristics of no obvious reduction of suspension rate in 24 months during the storage period, good fluidity, no hardening, good drug effect, convenient use, safe transportation, easy storage, little environmental pollution and the like.

3) The product has simple and reliable process and low investment. Is suitable for preventing and controlling pests such as chilo suppressalis and thrips in rice, lays a technical guarantee for industrial development, and has wide application prospect.

Detailed Description

The following examples serve to describe the invention in further detail, but are not to be construed as limiting the invention, the compositions of the invention being in no way limited to these examples. The dinotefuran content in the formula examples is 95%, and the dinotefuran is added according to the dosage after folding. Other materials are commercially available. The materials are metered in percentage by weight.