CN103053518A - Dichlobenil water-dispersible granule and preparation method thereof - Google Patents
Dichlobenil water-dispersible granule and preparation method thereof Download PDFInfo
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- CN103053518A CN103053518A CN 201210576688 CN201210576688A CN103053518A CN 103053518 A CN103053518 A CN 103053518A CN 201210576688 CN201210576688 CN 201210576688 CN 201210576688 A CN201210576688 A CN 201210576688A CN 103053518 A CN103053518 A CN 103053518A
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Abstract
A dichlobenil water-dispersible granule and a preparation method thereof. The dichlobenil water-dispersible granule is characterized by comprising the following components of, by weight: 95% of dichlobenil, 1-5% of a wetting and dispersing agent, 1-5% of a dispersing agent, 1-3% of a disintegrating agent, 1-2% of a binder, and 1-80% of a carrier. The preparation method comprises: first, according to the percentage by weight, fully mixing the wetting and dispersing agent, the dispersing agent, the disintegrating agent, the binder, the carrier, and dichlobenil original pesticide in a mixer; then placing the obtained mixture into a jet mill to pulverizing the mixture; and performing secondary mixing and second pulverizing, and spraying water, extruding for granulation and drying to obtain the dichlobenil water-dispersible granule. The dichlobenil water-dispersible granule of the present invention can be used for both pre-emergence treatment and foliage spray; is suitable for rice, corn, soybeans, kidney beans, cucumbers, onions, peppers, strawberries, lettuce, eggplants, turnips and other crops, and is also suitable for lawns and ornamental plants; and is mainly used for control of annual and perennial grass weeds.
Description
Technical field
The present invention relates to a kind of pesticide water dispersible granules, relate to specifically weed killer herbicide dichlobenil water dispersible granules and preparation method thereof.
Background technology
The chemical name of compound dichlobenil is 2,6-dichlorobenzonitrile.
Its structural formula is:
Dichlobenil English name: dichlorobenil.Be selective herbicide.Sterling is white crystals.145～146 ℃ of fusing points.Vapour pressure is 0.67Pa (25 ℃).Solvability in the time of 20 ℃ in water is 18mg/L.Be dissolved in most of organic solvents, to acid and thermally-stabilised.Rat acute LD50 of passing through mouth 3160mg/kg, rabbit is acute through skin LD5011 350mg/kg, ichthyotoxin: carp TLm (48h) is 17mg/L.Generate 2-chloro-6-7 Xiao Ji cyanophenyl by 2,3-dichloronitrobenzene and copper cyanider reaction, make through reduction, diazotising again.Prevent and kill off annual and perennial germinating weed, consumption 2.5～10.0kg/ha.
On market, do not find at present any formulation of dichlobenil.After the advantage of water dispersible granules was entry, automatically disintegration was dispersed into suspension.It is the novel form that grows up on the basis of wetting powder and suspending agent, it has good dispersion, suspensibility is high, good stability, the characteristics such as easy to use, avoid wetting powder and produced dust, the inconvenience of suspending agent packed and transported, storage easily produce the shortcomings such as precipitation, caking, poor fluidity, sticking wall.The adhesiveness that is sprayed on the plant is good, and using method is more convenient, and drug effect is relatively good.
Summary of the invention
The purpose of this invention is to provide a kind of dichlobenil water dispersible granules and preparation method thereof.Dichlobenil water dispersible granules of the present invention can effectively prevent and kill off in paddy rice, corn, soybean, Kidney bean, cucumber, onion, capsicum, strawberry, lettuce, eggplant, turnip and lawn and the ornamental plants annual and perennial grassy weed.
Its composition of water dispersible granules provided by the invention is as follows according to weight ratio:
Dichlobenil 1-95%, wetting dispersing agent 1-5%, dispersant 1-5%, disintegrant 1-3%, binding agent 1-2%, carrier 1-80%.
Adoptable wetting dispersing agent has 600# wetting agent, 700# wetting agent, ABSNa, K12.Dispersant has phenethyl phenol polyethenoxy sodium sulphate, AEO series, NPE, lignosulfonates, NNO, MF, BX etc.Disintegrant has bentonite, PEG, modified starch, mineral salt, White Carbon black, silica gel.Binding agent has Sodium Polyacrylate, PEG, Modified PVA, wooden sodium, dextrin, CMC, xanthans.Carrier has kaolin, fine particle calcium carbonate, potter's clay, White Carbon black, diatomite.
The preparation method of dichlobenil water dispersible granules of the present invention at first fully mixes the wetting minute former medicine of agent, dispersant, disintegrant, binding agent, carrier and dichlobenil in blender according to a certain percentage according to weight ratio, then putting into airslide disintegrating mill pulverizes, then secondary mixes, then separating twice sprays water, extruding, granulation, drying.
Dichlobenil water dispersible granules provided by the invention has following beneficial effect:
1, good dispersion, suspensibility is high, good stability, the characteristics such as easy to use, has avoided wetting powder and has produced dust, and the inconvenience of suspending agent packed and transported, storage easily produce the shortcomings such as precipitation, caking, poor fluidity, sticking wall.
2, the adhesiveness that is sprayed on the plant is good, and using method is more convenient, and drug effect is relatively good.
Specific embodiment
Following examples describe the present invention in detail, and embodiment mainly is for the present invention is described but not is used for limiting the present invention.
Embodiment 1:
A kind of dichlobenil water dispersible granules and preparation method thereof, it prepares first 4 kilograms of the former medicines of dichlobenil, 0.2 kilogram of ABSNa, 0.2 kilogram in phenethyl phenol polyethenoxy sodium sulphate, 0.1 kilogram of bentonite, 0.1 kilogram of Sodium Polyacrylate, 0.4 kilogram of white carbon is as raw material.Then the former medicine of dichlobenil, ABSNa, phenethyl phenol polyethenoxy sodium sulphate, bentonite, Sodium Polyacrylate, white carbon are all added in the blender and mix, then putting into airslide disintegrating mill pulverizes, then secondary mixes, separating twice, then spray water, extruding, granulation, drying, can become the water dispersible granula of dichlobenil.
Embodiment 2:
A kind of dichlobenil water dispersible granules and preparation method thereof, it prepares first 4 kilograms of the former medicines of dichlobenil, 0.2 kilogram of 600# wetting agent, 0.2 kilogram of lignosulfonates, 0.1 kilogram of modified starch, 0.1 kilogram of Modified PVA, 0.4 kilogram of fine particle calcium carbonate is as raw material.Then the former medicine of dichlobenil, 600# wetting agent, lignosulfonates, modified starch, Modified PVA, fine particle calcium carbonate are all added in the blender and mix, then putting into airslide disintegrating mill pulverizes, then secondary mixes, separating twice, then spray water, extruding, granulation, drying, can become the dichlobenil water dispersible granules.
Claims (7)
1. dichlobenil water dispersible granules and preparation method thereof is characterized in that containing dichlobenil 1-95% according to percentage by weight, wetting dispersing agent 1-5%, dispersant 1-5%, disintegrant 1-3%, binding agent 1-2%, carrier 1-80%.
2. described a kind of dichlobenil water dispersible granules and preparation method thereof according to claim 1 is characterized in that wetting dispersing agent is 600# wetting agent, 700# wetting agent, ABSNa, K12.
3. described a kind of dichlobenil water dispersible granules and preparation method thereof according to claim 1 is characterized in that dispersant is phenethyl phenol polyethenoxy sodium sulphate, AEO series, NPE, lignosulfonates, NNO, MF, BX etc.
4. described a kind of dichlobenil water dispersible granules and preparation method thereof according to claim 1 is characterized in that disintegrant is bentonite, PEG, modified starch, mineral salt, White Carbon black, silica gel.
5. described a kind of Chlorthal water dispersible granule and preparation method thereof according to claim 1 is characterized in that binding agent is Sodium Polyacrylate, PEG, Modified PVA, wooden sodium, dextrin, CMC, xanthans.
6. described a kind of Chlorthal water dispersible granule and preparation method thereof according to claim 1 is characterized in that carrier is kaolin, fine particle calcium carbonate, potter's clay, White Carbon black, diatomite.
7. the preparation method of a kind of Chlorthal water dispersible granule according to claim 1, it is characterized in that at first the wetting minute former medicine of agent, dispersant, disintegrant, binding agent, carrier and dichlobenil fully being mixed in blender according to a certain percentage, then putting into airslide disintegrating mill pulverizes, then secondary mixes, then separating twice sprays water, extruding, granulation, drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210576688 CN103053518A (en) | 2012-12-27 | 2012-12-27 | Dichlobenil water-dispersible granule and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210576688 CN103053518A (en) | 2012-12-27 | 2012-12-27 | Dichlobenil water-dispersible granule and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103053518A true CN103053518A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201210576688 Pending CN103053518A (en) | 2012-12-27 | 2012-12-27 | Dichlobenil water-dispersible granule and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103053518A (en) |
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2012
- 2012-12-27 CN CN 201210576688 patent/CN103053518A/en active Pending
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Application publication date: 20130424 |