CN102885086A - Kasugamycin and copper chloride wettable powder and preparation process thereof - Google Patents

Abstract

A kasugamycin and copper chloride wettable powder consists of the following ingredients in percentage by weight: 45% of copper chloride, 2% of kasugamycin, 2% of dispersing agent NNO, 4% of K12 and the balance of white carbon black. The preparation process comprises the steps of: (1) uniformly mixing copper chloride, the kasugamycin, the dispersing agent NNO, the K12 and the white carbon black in a ratio; (2) carrying out ultrafine grinding on the mixture by using a jet mill so as to obtain the original powder; (3) uniformly mixing the original powder which is obtained after ultrafine grinding with a binding agent according to the formula; (4) granulating the mixture through a granulator; (5) drying granules; and (6) screening dried granules so as to obtain the kasugamycin and copper chloride wettable powder.

Description

A kind of kasugarnycin Cupravit wetting powder and preparation technology thereof

Technical field

The present invention relates to a kind of disinfectant use in agriculture, particularly a kind of have a kind of kasugarnycin Cupravit wetting powder that prevents and treat double action to crops, the invention still further relates to the preparation method of this disinfectant use in agriculture.

Background technology

At present, disinfectant use in agriculture is a lot, and Cupravit is one kind of.Can stick to the plant corpus surface after Cupravit is sprayed onto on the crop, form layer protecting film, be difficult for by rain drop erosion.Under certain damp condition, discharge solubility basic copper chloride ion and play bactericidal action, be mainly used in preventing and treating citrus ulcer, also can be used for preventing and treating other fungal disease and parts of fine fungus diseases.The technical characterstic of this product is that fungicidal spectrum is wide, and curative effect is high, non-resistant, environmentally safe has obvious passivation and preventive and therapeutic effect to bacterium and part fungal disease, therefore, use Cupravit to prevent and treat disease and should rest in the disease phase of beginning to see and carry out, just can obtain preferably effect.The drug effect phase of Cupravit is short,

Water decomposition in solar radiation and absorbing air is very fast, and about 7 days of its residual effect phase, it has bactericidal activity height, security performance is good, fungicidal spectrum is wide characteristics.But the former powder of Cupravit is made generally in wetting powder and uses in using at present.Because wetting powder dust pollution in processing and use procedure is serious, and environmental and human health impacts is had very large danger, and the shortcomings such as effective rate of utilization is low, lasting period weak point, therefore be the formulation that relatively falls behind and be on the verge of to eliminate in the present formulations of pesticide.

Kasugarnycin claims again kasugarnycin; Toxicity LD50 (mg/kg): the acute toxicity to people, animal, poultry is all low.Big white mouse acute oral toxicity 22000mg/kg, small white mouse acute oral are 20000mg/kg, and rabbit then is 20900mg/kg.Toxicity to fish, shrimps is very low, only has eight one thousandths of dichlorodiphenyl trichloroethane, proterties: sterling is white crystals; Hydrochloride is white needles or flaky crystal, and is pleasantly sweet, and the dissolving situation: sterling is indissoluble in organic solvent, dissolves 12.5%(W/V in 25 ℃ of water); Hydrochloride is soluble in water, is insoluble to the organic solvents such as methyl alcohol, ethanol, acetone, benzene; Disease had the bactericidal actions such as interior suction, treatment and prevention.Melon crop is promoted that in addition the leaf look dark green, the effect that prolongs harvest time.

Summary of the invention

The objective of the invention is for the deficiencies in the prior art, provide drug effect desirable, little to Health Impact a kind of kasugarnycin Cupravit wetting powder.

For addressing the above problem, the present invention by the following technical solutions:

A kind of kasugarnycin Cupravit wetting powder, be grouped into by the one-tenth of following percetage by weight: 45% Cupravit, 2% kasugarnycin, 2% dispersant NNO, 4% K12, surplus are white carbon.

A kind of preparation technology of kasugarnycin Cupravit wetting powder comprises following step:

(1) Cupravit, kasugarnycin, dispersant NNO, K12, white carbon are mixed in proportion;

(2) after carrying out ultra-fine grinding with above mixture, airslide disintegrating mill obtains female powder;

(3) the female powder that obtains after the ultra-fine grinding is mixed by prescription and binding agent;

(4) above mixture is carried out granulation at comminutor;

(5) above shot-like particle is dried;

(6) shot-like particle with oven dry namely obtains kasugarnycin Cupravit wetting powder after sieving.

The present invention has the following advantages: the kasugarnycin Cupravit wetting powder that adopts prescription of the present invention to process, and its implementation result shows that this product has good dispersiveness, and disintegration rate is fast, and disintegration time is less than 3mi 1; Heat storage stability is good, and in use adhesion rate is high, the lasting period is long, use in production application, bactericidal potency is high, the results showed, the control efficiency such as canker to multiple kinds of crops all can reach more than 8 0%, safety is good, and without poisoning, and packing is simple to crops, storing is convenient, belongs to science environmental protection formulation product.

Embodiment

Embodiment, the one-tenth of getting percetage by weight is grouped into: 45% Cupravit, 2% kasugarnycin, 2% dispersant NNO, 4% K12, surplus are white carbon.

Cupravit, kasugarnycin, dispersant NNO, K12, white carbon are mixed in proportion; After carrying out ultra-fine grinding with above mixture, airslide disintegrating mill obtains female powder; The female powder that obtains after the ultra-fine grinding is mixed by prescription and binding agent; Above mixture is carried out granulation at comminutor; Above shot-like particle is dried.

The kasugarnycin Cupravit wetting powder that adopts the present invention to make carries out the land for growing field crops and uses, to the killing rate of aphid more than 95%, to the killing rate of locust more than 96%, more than 94%, the killing rate of scale insect is more than 95% to the killing rate of thrips, and the killing rate of wood louse is more than 96%.

Claims (2)

1. kasugarnycin Cupravit wetting powder, it is characterized in that: the one-tenth by following percetage by weight is grouped into: 45% Cupravit, 2% kasugarnycin, 2% dispersant NNO, 4% K12, surplus are white carbon.

2. the preparation technology of a kind of kasugarnycin Cupravit wetting powder as claimed in claim 1 comprises following step:

(1) Cupravit, kasugarnycin, dispersant NNO, K12, white carbon are mixed in proportion;

(2) after carrying out ultra-fine grinding with above mixture, airslide disintegrating mill obtains female powder;

(3) the female powder that obtains after the ultra-fine grinding is mixed by prescription and binding agent;

(4) above mixture is carried out granulation at comminutor;

(5) above shot-like particle is dried;

(6) shot-like particle with oven dry namely obtains kasugarnycin Cupravit wetting powder after sieving.