CN101167474A - Fenbutatin oxide water dispersible granule and preparation method thereof - Google Patents

Abstract

The invention discloses a chemical compound fenbutatin oxide moisture free-flow agent, belonging to acaricide technology in farm crop protecting field. The invention composition comprises fenbutatin oxide 10-800 parts, moistening agent 10-40 parts, dispersing agent 20-50 parts, disintegrating agent 10-50 parts, sorbent 10-30 parts, adhesive agent 10-30 parts, stabilizing agent 20-80 parts and filling material 50-500 parts. The above components are pro rata mixed and evenly stirred, then mesh powder obtained through disintegrating is evenly stirred with the adhesive agent, and fenbutatin oxide moisture free-flow agent is processed through granulating, drying and sieving. The chemical compound fenbutatin oxide moisture free-flow agent of the invention overcomes shortages of the conventional agent type of fenbutatin oxide, lowers utilizing cost for farmers and environmental pollution. During utilizing process, the chemical compound fenbutatin oxide moisture free-flow agent of the invention has the advantages of high content, fast disintegration, great dispersibility, favorable storing and transporting, great stability, high activity, great efficiency and safety, which is mainly applicable for preventing and curing citrus red mites, European red mites, and citrus blister mites.

Description

Fenbutatin oxide water dispersible granule and preparation method thereof

Technical field

This invention relates to a kind of farm killing mite agent, and active ingredient is fenbutatin oxide, and formulation is water dispersible granules and preparation method thereof.Be mainly used in the control of citrus red mite, European red mite, oranges and tangerines blister mite.

Background technology

At present, the farm killing mite agent is a lot, and fenbutatin oxide is wherein a kind of, belong to the organic tin miticide, the evil mite is had strong tagging property, to strong as if the lethality of mite, young mite, one-tenth mite, it is a kind of effect type miticide of holding, 3 days begin to take effect after the dispenser, reach mite peak extremely in 14 days, and the lasting period is more than 2 months, even can reach 100 days, be a kind of temperature sensitive type miticide, the high more effect of temperature is good more, can prevent and treat resistance evil mites such as European red mite, citrus red mite, oranges and tangerines blister mite.Existing fenbutatin oxide is based on wetting powder and missible oil, environmental protection formulation as the water dispersible granules does not have an example, wetting powder and missible oil are bigger to health and environmental pollution in preparation process and use, fly upward during use, and seepage, cause in the actual use availability low, be difficult for being mixed, and packing is inconvenient, storing is complicated.Water dispersible granules has not only reduced peasant's use cost, and has reduced the pollution to environment, and the present invention in use has content height, fast, the good dispersion of disintegration, is beneficial to the advantage of storing and stability, and activity is high, usefulness is good, safety.

European red mite: the main harm blade, the canescence spot appears in the blade initial stage of being injured, and blade cloth presents grey canescence when serious, but do not fall leaves, mainly influenced the photosynthesis of crop, not only cause blade withered and yellow, also cause tree vigo(u)r to wilt, cause for the whole physiology phase and have a strong impact on.

Citrus red mite: the oranges and tangerines producing region spreads all over the country, it is worldwide oranges and tangerines evil mite, it is the main harmful mite in China oranges and tangerines producing region, oranges and tangerines nursery stock, treelet and big tree all are injured, and it is the heaviest to be injured with nursery stock and treelet, mainly stings the juice of phyllidium sheet, spray and fruit etc., be injured the heaviest with blade, cause harm and cause leaf abscission and spike top when serious, often cause a large amount of sheddings, have a strong impact on output and tree vigo(u)r.

The oranges and tangerines blister mite: be commonly called as " rust mite ", mainly be clustered in leaf, really, branch, puncture epidermal cell and suck nutrient solution, the killed back of fruit epidermal cell destroys, the pericarp blackening causes scale, serious causes shedding.

Summary of the invention

The objective of the invention is to improve one satisfactory for result, the efficient height, active ingredient usage amount height, environmental pollution is little, use easily, use cost is low, and the safety coefficient height is pollution-free to the crop blade face, can promote the photosynthesis of crop, packing is simple, and storing is convenient, during use human body is not had the science environmental protection formulation of injury.Another purpose is to be prepared into outstanding formulation and easy to use, the high high-content water-dispersion granula of practical efficiency.

Technical scheme among the present invention and like this realize that a kind of fenbutatin oxide water dispersible granule composition comprises: 50 parts～500 parts of fenbutatin oxide 10-800 parts, wetting agent 10-40 part, dispersant 20-50 part, disintegrant 10-50 part, adsorbent 10-30 part, adhesive agent 10-30 part, stabilizing agent 20-80 part, filler.Wherein, the auxiliary agent type that water dispersible granules according to claim 1 is required is prepared according to the product concrete condition.

Owing to add the auxiliary agent of heterogeneity, make active quantities height of the present invention among the present invention, pollutes little, availability height, convenient, the stable easily use of storing.Have also that disintegration rate is fast, the advantage of good dispersion, good fluidity.

The preparation method's of a kind of fenbutatin oxide water dispersible granule of the present invention technology, the technical indicator of product is as follows:

Fenbutatin oxide content 1-80%

Moisture %≤2.5

PH value scope 6.0～8.0

Suspensibility % 〉=75

Particle size range (225-800 μ m) % 〉=98

Dispersed % 〉=85

Wetting time S≤90

Wet screening test (by 75 μ m testing sieves) % 〉=98

Lasting foaming characteristic, (behind the 1min) mL≤12

Embodiment

The present invention will be further described below in conjunction with embodiment:

Embodiment 1

Take by weighing 800 parts in the former powder of fenbutatin oxide; 30 parts of wetting agent alkyl amide taurates; 20 parts of dispersant B y agent; 30 parts of disintegrant anhydrous sodium sulfates; 20 parts in adsorbent diatomite; 20 parts of stabilizing agent sodium hydrogen phosphates; 70 parts of filler bentonites after it is mixed, are pulverized through airslide disintegrating mill and to be obtained female powder; female powder and 10 parts of adhesive gelatin are mixed; then, granulation then, oven dry; sieve fenbutatin oxide water dispersible granule, be 93.05～96.40% for control citrus red mite its control efficiency in force.

Embodiment 2

Take by weighing 800 parts in the former powder of fenbutatin oxide, 20 parts in wetting agent alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, 30 parts in dispersant alkylphenol-polyethenoxy base ether, 10 parts in disintegrant surfactant, 10 parts of adsorbent attapulgites, 20 parts of stabilizing agent succinic acid, 100 parts of filler kaolin, after it is mixed, pulverize through airslide disintegrating mill and to obtain female powder, female powder and 10 parts of adhesive gelatin are mixed, granulation then, the oven dry, sieve fenbutatin oxide water dispersible granule, being used to prevent and treat its control efficiency of European red mite in being implemented in is 90.98～93.23%.

Embodiment 3

Take by weighing 750 parts in the former powder of fenbutatin oxide, 25 parts of wetting agent alkylbenzenesulfonates, 602 doses 30 parts of dispersants, 30 parts in disintegrant calcium chloride, 15 parts in No. 45, adsorbent lignin, 20 parts of stabilizing agent oxalic acid, 107 parts of filler anhydrous sodium sulfates, after it is mixed, pulverize through airslide disintegrating mill and to obtain female powder, female powder and 13 parts of adhesive polyethylene glycol are mixed, granulation then, oven dry, sieve fenbutatin oxide water dispersible granule, be 89.32～92.16% for its control efficiency of control oranges and tangerines blister mite in force.

In order to make those of ordinary skill in the art understand the present invention better, the invention provides the preparation method who is used for fenbutatin oxide water dispersible granule, following steps are arranged:

A), choose raw material, it is mixed according to the prescription of fenbutatin oxide water dispersible granule;

B), after carrying out ultramicro grinding with above mixture, airslide disintegrating mill obtains female powder;

C), the female powder that obtains after the ultramicro grinding is mixed by prescription and binding agent;

D), above mixture is carried out granulation on comminutor;

E), above shot-like particle is dried;

F), promptly obtain Imibenconazole water dispersible granule after the shot-like particle after will drying sieves.

The fenbutatin oxide water dispersible granule that adopts prescription of the present invention to process, its implementation result shows, this product has good dispersiveness, working substance suspension in indefinite duration, disintegration rate is fast, disintegration time is short, heat storage stability is good, the present invention kills mite usefulness height in production application, European red mite, citrus red mite and oranges and tangerines blister mite are all reached more than 88% for each control of pest mite effect, crops are not had poisoning.

Owing to added the auxiliary agent of heterogeneity, so that having active component, the present invention contains among the present invention Amount is high, disintegration rate is fast, dispersive property good, good fluidity, heat storage property are stable; Be convenient to store, Transportation and the advantage such as environmental pollution is little, in use bactericidal potency height, security are good.

Claims (9)

1. a fenbutatin oxide water dispersible granule is characterized in that this agriculture chemicals fungicide is shaped as rule or irregular coccoid; Its agriculture chemicals fungicide composition is as follows by mass ratio:

Bulk drug: 10 parts～800 parts

Auxiliary agent: 10 parts～200 parts

Carrier: 10 parts～500 parts

Described preparation is meant wetting agent, dispersant, disintegrant, adsorbent, adhesive, stabilizing agent;

Described carrier is meant filler.

2. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that, described auxiliary agent, wherein wetting agent: sulphate such as aliphatic alcohol sulfate, alkyl sulfate, alkylol polyoxyethylene groups ether sodium sulfate, alkylphenol-polyethenoxy base ether sodium sulfate, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate; A kind of in the sulfonate such as sodium alkyl sulfonate, alkylbenzenesulfonate, alkylnaphthalene sulfonate, dialkyl succinylsuccinate sulfonate, monoalkyl phenyl polyoxyethylene groups ether succinic acid sodium sulfonate, fatty alcohol ethylene oxide adduct sulfonate, alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate, alkyl amide taurate.

3. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that described auxiliary agent, wherein dispersant: aliphatic alcohol polyethenoxy base ether, alkylphenol-polyethenoxy base ether, 602,1601,1602, By series a kind of.

4. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that described auxiliary agent, wherein disintegrant: ammonium sulfate, anhydrous sodium sulfate, calcium chloride, surfactant, bentonite, polyethyl acrylate a kind of.

5. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that described auxiliary agent, wherein adsorbent: diatomite, attapulgite, white carbon, No. 45, lignin, bentonite a kind of.

6. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that described auxiliary agent, wherein adhesive: gelatin, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, starch, CMC's is a kind of.

7. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that described auxiliary agent, wherein stabilizing agent: sodium hydrogen phosphate, succinic acid, adipic acid, oxalic acid, borax a kind of.

8. according to the described a kind of miticide fenbutatin oxide water dispersible granule of claim 1, it is characterized in that described carrier, wherein filler: kaolin, precipitated calcium carbonate, bentonite, anhydrous sodium sulfate a kind of.

9. a method for preparing claim 1 product is characterized in that, is undertaken by following step:

(1) according to the purposes that will prepare the water dispersant granule pesticide, take by weighing above-mentioned bulk drug, one or both or two or more auxiliary agents, one or both or two or more carriers, mix the back and carry out ultramicro grinding, obtain 500 orders～800 order fine powders with airslide disintegrating mill;

(2) aqueous solution of gained fine powder and adhesive is added in the blender mix, through the oscillating granulator granulation, 50 ℃～100 ℃ following low temperature dryings promptly obtain the water dispersant granula of this pesticide species.