CN102217626A - Water dispersible granule formulated from phytocide fluroxypyr and ethoxysulfuron and preparation method of granule - Google Patents
Water dispersible granule formulated from phytocide fluroxypyr and ethoxysulfuron and preparation method of granule Download PDFInfo
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- CN102217626A CN102217626A CN2011101166231A CN201110116623A CN102217626A CN 102217626 A CN102217626 A CN 102217626A CN 2011101166231 A CN2011101166231 A CN 2011101166231A CN 201110116623 A CN201110116623 A CN 201110116623A CN 102217626 A CN102217626 A CN 102217626A
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- fluroxypyr
- ethoxy sulphur
- weed killer
- killer herbicide
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Abstract
The invention relates to a water dispersible granule formulated from phytocide fluroxypyr and ethoxysulfuron and a preparation method of the granule, belonging to the technical field of pesticides. The water dispersible granule is formulated from the following components of mass percent: 5-30% of fluroxypyr, 5-30% of ethoxysulfuron, 1-8% of dispensing agent, 1-15% of wetting agent, 1-15% of disintegrating agent, 0.1-3% of binding agent and the balance of carrier. The water dispersible granule has the advantages of good dispersibility, fine wettability, high suspensibility, quick disintegrating speed, easy packaging and storage and no dust pollution during production and the like. The water dispersible granule further widens the insecticidal spectrum and is not only capable of effectively preventing and removing nutgrass flatsedge and annual broadleaf weeds in paddy fields, but also applicable to preventing and removing various broadleaf weeds in fields of wheat, barley, maize and other crops of the grass family. The water dispersible granule reduces agricultural cost and is safe to afterreap crop.
Description
Technical field
The present invention relates to grand composite water-dispersible granules of a kind of weed killer herbicide fluroxypyr and ethoxy sulphur and preparation method thereof, belong to technical field of pesticides.
Background technology
Sulfonylurea herbicide is the present weed killer herbicide of a maximum class effect uniqueness in the world, can be used for multiple broad leaved weed and some grassy weed such as farmland, forest land and uncultivated area.Simultaneously because of the low (10～40g/hm of its consumption
2), characteristics such as mammal low toxicity and unique activity of weeding are subjected to widespread usage, sulfonylurea herbicide is residual length in soil, depend mainly on outside the characteristic, product quality of compound itself, also be limited by the influence of factors such as dosage, soil characteristics (P in soil H value, soil types), dispenser period, atomization quality, temperature and humidity.Prudent attitude is held in popularization to long residual property weed killer herbicide, adheres to test, demonstration, promotes principle.Therefore, scientific and reasonable use sulfonylurea herbicide, prevent chemical injury of crops and the protection agroecological environment significant.
Ethoxy sulphur is grand, chemical name: 1-(4,6-dimethoxypyridin-2-yl)-3-(2-phenoxy ethoxy sulfonyl) urea.Physicochemical property: light gray fine powder, density 1.48,141～147 ℃ of fusing points.Solvability: n-hexane 0.0068g/L, toluene 2.5g/L, acetone 36g/L, carrene 107g/L, methyl alcohol 7.7g/L, isopropyl alcohol 1.0g/L, ethyl acetate 14.1g/L, methyl-sulfoxide〉500g/L, water 26.4mg/L.Ethoxy sulphur is grand to be that branched chain amino acid synthesizes (ALS or AHAS) inhibitor.By the biosynthesis of blocking-up primary amino acid valine and isoleucine, thereby stop cell division and plant growing.Have good selectivity, be used to prevent and treat paddy field nutgrass flatsedge and annual broadleaf weed.Toxicity: big white mouse acute oral LD
503270mg/kg, rat acute is through skin LD
50＜4000mg/kg. all has no stimulation to eyes and the skin of rabbit.Environmental influence: wild duck LD
502000mg/kg b.w., North America quail LD
502000mg/kg b.w. silkworm (per os) LD
505000ppm, 500 μ g, LD
501000 μ g ai, nontoxic to honeybee.1.5～9 days half life period in the paddy field water either, superficial water 30～31 days; 15 days half life period (good gas) in the soil, 10～60 days (rice field).Mainly be 15% water-dispersible granules in the market.
Fluroxypyr, chemical name: 4-amino-3.5-two chloro-6-fluoro-pyridine-2-fluoroacetic acid.Pure product are the white crystals body, fusing point 232-233 ° C, vapour pressure 9.42 * mmHg during 25 ° of C.20 ° of C solvability 91ppm in water, 41.6 grams per liters in acetone, octanol and moisture distribution coefficient are 55:1.Toxicity: former medicine rat acute per os LD
50Be 2405mg/kg, rabbit is acute through skin LD
505000mg/kg, rat acute sucked 4(hour) LD
50296mg/m
3Range of application wheatland, corn field, orchard and fruit tree.Mainly be missible oil or the wetting powder made with other agriculture chemical compounding in the market.
The present invention selects the grand and composite water-dispersible granules of making of fluroxypyr of weed killer herbicide ethoxy sulphur, and the grand and composite development report of making water-dispersible granules of fluroxypyr of weed killer herbicide ethoxy sulphur is not arranged at present as yet.
Summary of the invention
The purpose of this invention is to provide grand composite water-dispersible granules of a kind of weed killer herbicide fluroxypyr and ethoxy sulphur and preparation method thereof.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, formulated by following component by mass percent: fluroxypyr 5%-30%, ethoxy sulphur grand 5%-30%, dispersant 1%-8%, wetting agent 1%-15%, disintegrant 1%-15%, binding agent 0.1%-3%, surplus is a carrier.
The ratio of the mass percent of described fluroxypyr is 10%～20%, and the ratio of the mass percent that ethoxy sulphur is grand is 10%～20%.
The ratio of the mass percent of described dispersant is 3%～5%, and dispersant is one or more in alkyl sodium salt, lignosulfonates and derivative thereof, naphthalenesulfonic acid-formaldehyde condensate, alkylphenol-polyethenoxy and formaldehyde condensation products sulphate, polycarboxylate and derivative thereof, cresols-formaldehyde and sodium sulphite condensation product, alkylaryl sulfonates phenethyl phenol polyethenoxy ether and the derivative thereof.As sodium lignin sulfonate, MorwetD-425, MorwetD-110, TERSPENSE2425, TERSPENSE2700 etc.MorwetD-425, MorwetD-110 are the product of Akzo Nobel (AKZO NOBEL) company.
The ratio of the mass percent of described wetting agent is 5%～10%, and wetting agent is one or more in alkylnaphthalene sulfonate, fatty acid amide N methyl taurine salt, alkylsulfonate, alkylaryl polyoxyethylene ether sulfate, the fat fatty alcohol-polyoxyethylene ether.
Described wetting agent is lauryl sodium sulfate, draw back any one or multiple mixture among powder, dodecyl sulphate barium, MorwetEFW, the TERWET1004.MorwetEFW is the product of Akzo Nobel (AKZO NOBEL) company.TERWET1004 selects the deliver a letter product of chemical industry Co., Ltd of Shanghai for use.
The ratio of the mass percent of described disintegrant is 5%～10%, and disintegrant is any one or the multiple mixture in sodium sulphate, ammonium sulfate, urea, sodium bicarbonate, carboxymethyl cellulose, modified starch, methylcellulose, HEMC, sodium laurate, sodium alginate, the aluminium-magnesium silicate etc.
The ratio of the mass percent of described binding agent is 0.5%～1.5%, and binding agent is any one or the multiple mixture in polyvinylpyrrolidone, sodium carboxymethylcellulose, white granulated sugar, starch, soluble starch, polyvinyl alcohol, xanthans, the polyethylene glycol.
Described carrier is any one or the multiple mixture in kaolin, diatomite, white carbon, potter's clay, attapulgite, atlapulgite, the fine particle calcium carbonate.
The preparation method of the grand composite water-dispersible granules of a kind of weed killer herbicide fluroxypyr and ethoxy sulphur may further comprise the steps:
Grand and dispersant, wetting agent, disintegrant, binding agent, carrier with fluroxypyr and ethoxy sulphur; feed intake by charge ratio; and mix; carry out fine pulverizing through comminution by gas stream; mediate again; after extruder grain or carry out granulation, drying in the fluidized granulating machine promptly gets product.
The preparation method of the grand composite water-dispersible granules of a kind of weed killer herbicide fluroxypyr and ethoxy sulphur is characterized in that may further comprise the steps:
Grand and dispersant, wetting agent, disintegrant, binding agent, carrier feed intake by charge ratio with water, fluroxypyr and ethoxy sulphur, join in the mixing kettle that has the high shear dispersion machine, and mix, and make the suspension of solid content 50%～70%; Suspension forms material with the suspension of the particle size dispersion below 2.5 microns in water again by the physics peptizaiton of horizontal or vertical grinding machine; Suspension is pressed into drying tower with material from nozzle by membrane pump again, is split into drop; Hot-air in the drying tower is to enter in the tower by the hot-air distributor on the top cover, sprays into thermal air current from top to bottom, and evaporation drying forms dry spheric granules powder; Draw off from discharging opening; Thinner particulate material is extracted by air exhauster with dry air and enters dust pelletizing system, and thinner particulate material recovery set is used in the mixing kettle that has the high shear dispersion machine.
The present invention be grand with weed killer herbicide fluroxypyr and ethoxy sulphur be the active ingredient of weeding, add dispersant, wetting agent, disintegrant, binding agent, carrier again and make.The present invention has good dispersion, wetability is good, suspensibility is high, disintegration rate is fast, easily packing, easily storage, advantage such as no dust pollution in the production process, the nutgrass flatsedge and the annual broadleaf weed that kill the grass spectrum, can not only effectively prevent and kill off paddy field have further been enlarged, also be applicable to the various broad leaved weeds of gramineous crop Tanaka such as preventing and kill off wheat, barley, corn, and reduced agricultural cost, to succession crop safety.
Technical indicator of the present invention:
Outward appearance is decided according to concrete kind;
Active constituent content (%) is decided according to concrete kind;
Suspensibility (%) 〉=85;
Wetting time (second)≤30;
PH (1% aqueous solution) decides according to concrete kind;
Lasting foaming characteristic (1min, ml)≤25;
Disintegrative in the water (inferior)≤20;
Moisture (%)≤2.5;
Heat storage stability (54 ℃ ± 2 ℃, 14 days) resolution ratio≤5%, suspensibility descends≤5%, and other are constant.
Embodiment
The invention will be further described below by specific embodiment, but the present invention is not limited by following examples.
Embodiment 1
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 10%, ethoxy sulphur are grand 20%, dispersant 8%, wetting agent 5%, disintegrant 5%, binding agent 0.5%, and surplus is a carrier.Wherein, dispersant is MorwetD-425, and wetting agent is a dodecyl sodium sulfate, and disintegrant is an aluminium-magnesium silicate, and binding agent is a sodium carboxymethylcellulose, and carrier is a kaolin.The product that sodium carboxymethylcellulose selects for use Xinfeng, Dacheng County, Hebei province cellulose factory to produce.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Load weighted various materials are dropped into mixing kettle respectively to mix; open comminution by gas stream equipment; it is more than 320 orders that batch mixing is crushed to fineness, opens kneader, powder is dropped into kneader and drip capacity moisture and mediate evenly; feeding is to the comminutor granulation; finish oven dry, screening; it is qualified to detect, the warehouse-in packing.
Embodiment 2
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 15%, ethoxy sulphur are grand 10%, dispersant 9%, wetting agent 5%, disintegrant 5%, binding agent 0.5%, and surplus is a carrier.Wherein, dispersant is MorwetD-425, and wetting agent is MorwetEFW, and disintegrant is a sodium sulphate, and binding agent is a sodium carboxymethylcellulose, and carrier is an atlapulgite.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Load weighted various materials are dropped into mixing kettle respectively to mix; open comminution by gas stream equipment; it is more than 320 orders that batch mixing is crushed to fineness, opens kneader, powder is dropped into kneader and drip capacity moisture and mediate evenly; feeding is to the comminutor granulation; finish oven dry, screening; it is qualified to detect, the warehouse-in packing.
Embodiment 3
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 15%, ethoxy sulphur are grand 20%, dispersant 8%, wetting agent 5%, disintegrant 5%, binding agent 0.1%, and surplus is a carrier.Wherein, dispersant is MorwetD-110, and wetting agent is for drawing back powder, and disintegrant is a sodium sulphate, and binding agent is a sodium carboxymethylcellulose, and carrier is a kaolin.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Load weighted various materials are dropped into mixing kettle respectively to mix; open comminution by gas stream equipment; it is more than 320 orders that batch mixing is crushed to fineness, opens kneader, powder is dropped into kneader and drip capacity moisture and mediate evenly; feeding is to the comminutor granulation; finish oven dry, screening; it is qualified to detect, the warehouse-in packing.
Embodiment 4
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 15%, ethoxy sulphur are grand 10%, dispersant 9%, wetting agent 5%, disintegrant 5%, binding agent 0.5%, and surplus is a carrier.Wherein, dispersant is MorwetD-425, and wetting agent is a dodecyl sulphate barium, and disintegrant is a sodium sulphate, and binding agent is a sodium carboxymethylcellulose, and carrier is an atlapulgite.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Grand and dispersant, wetting agent, disintegrant, binding agent, carrier feed intake by charge ratio with water, fluroxypyr and ethoxy sulphur, join in the mixing kettle that has the high shear dispersion machine, and mix, and make the suspension of solid content 50%～70%; Suspension forms material with the suspension of the particle size dispersion below 2.5 microns in water again by the physics peptizaiton of horizontal or vertical grinding machine; Suspension is pressed into drying tower with material from nozzle by membrane pump again, is split into drop; Hot-air in the drying tower is to enter in the tower by the hot-air distributor on the top cover, sprays into thermal air current from top to bottom, and evaporation drying forms dry spheric granules powder; Draw off from discharging opening; Thinner particulate material is extracted by air exhauster with dry air and enters dust pelletizing system, and thinner particulate material recovery set is used in the mixing kettle that has the high shear dispersion machine.
Embodiment 5
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 20%, ethoxy sulphur are grand 15%, dispersant 5%, wetting agent 10%, disintegrant 10%, binding agent 1.5%, and surplus is a carrier.Wherein, dispersant is a sodium lignin sulfonate, and wetting agent is a dodecyl sodium sulfate, and disintegrant is a urea, and binding agent is an xanthans, and carrier is a diatomite.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Load weighted various materials are dropped into mixing kettle respectively to mix; open comminution by gas stream equipment; it is more than 320 orders that batch mixing is crushed to fineness, opens kneader, powder is dropped into kneader and drip capacity moisture and mediate evenly; feeding is to the comminutor granulation; finish oven dry, screening; it is qualified to detect, the warehouse-in packing.
Embodiment 6
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 30%, ethoxy sulphur are grand 5%, dispersant 3%, wetting agent 1%, disintegrant 3%, binding agent 0.1%, and surplus is a carrier.Wherein, dispersant is a sodium lignin sulfonate, and wetting agent is for drawing back powder, and disintegrant is the mixture of urea and sodium bicarbonate, and binding agent is a white granulated sugar, and carrier is a fine particle calcium carbonate.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Load weighted various materials are dropped into mixing kettle respectively to mix; open comminution by gas stream equipment; it is more than 320 orders that batch mixing is crushed to fineness, opens kneader, powder is dropped into kneader and drip capacity moisture and mediate evenly; feeding is to the comminutor granulation; finish oven dry, screening; it is qualified to detect, the warehouse-in packing.
Embodiment 7
A kind of weed killer herbicide fluroxypyr and ethoxy sulphur swell composite water-dispersible granules, under the situation of fluroxypyr content 95% and the grand content 95% of ethoxy sulphur, formulated by following component by mass percent: fluroxypyr 5%, ethoxy sulphur are grand 30%, dispersant 1%, wetting agent 7%, disintegrant 15%, binding agent 3%, and surplus is a carrier.Wherein, dispersant is a sodium lignin sulfonate, and wetting agent is a dodecyl sulphate barium, and disintegrant is a sodium bicarbonate, and binding agent is a white granulated sugar, and carrier is a fine particle calcium carbonate.
The weed killer herbicide fluroxypyr of above-mentioned prescription and ethoxy sulphur swell composite water-dispersible granules, and its preparation method may further comprise the steps:
Load weighted various materials are dropped into mixing kettle respectively to mix; open comminution by gas stream equipment; it is more than 320 orders that batch mixing is crushed to fineness, opens kneader, powder is dropped into kneader and drip capacity moisture and mediate evenly; feeding is to the comminutor granulation; finish oven dry, screening; it is qualified to detect, the warehouse-in packing.
The foregoing description only is used to the inventive concept of the present invention of explaining, but not to the qualification of rights protection of the present invention, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should fall into protection scope of the present invention.
Claims (10)
1. the grand composite water-dispersible granules of weed killer herbicide fluroxypyr and ethoxy sulphur, it is characterized in that by following component by mass percent formulated: fluroxypyr 5%-30%, ethoxy sulphur grand 5%-30%, dispersant 1%-8%, wetting agent 1%-15%, disintegrant 1%-15%, binding agent 0.1%-3%, surplus is a carrier.
2. weed killer herbicide fluroxypyr as claimed in claim 1 and ethoxy sulphur swell composite water-dispersible granules, it is characterized in that: the ratio of the mass percent of described fluroxypyr is 10%～20%, and the ratio of the mass percent that ethoxy sulphur is grand is 10%～20%.
3. weed killer herbicide fluroxypyr as claimed in claim 1 and ethoxy sulphur swell composite water-dispersible granules, it is characterized in that: the ratio of the mass percent of described dispersant is 3%～5%, and dispersant is one or more in alkyl sodium salt, lignosulfonates and derivative thereof, naphthalenesulfonic acid-formaldehyde condensate, alkylphenol-polyethenoxy and formaldehyde condensation products sulphate, polycarboxylate and derivative thereof, cresols-formaldehyde and sodium sulphite condensation product, alkylaryl sulfonates phenethyl phenol polyethenoxy ether and the derivative thereof.
4. weed killer herbicide fluroxypyr as claimed in claim 1 and ethoxy sulphur swell composite water-dispersible granules; it is characterized in that: the ratio of the mass percent of described wetting agent is 5%～10%, and wetting agent is one or more in alkylnaphthalene sulfonate, fatty acid amide N methyl taurine salt, alkylsulfonate, alkylaryl polyoxyethylene ether sulfate, the fat fatty alcohol-polyoxyethylene ether.
5. weed killer herbicide fluroxypyr as claimed in claim 4 and ethoxy sulphur swell composite water-dispersible granules, it is characterized in that: described wetting agent is lauryl sodium sulfate, draw back any one or multiple mixture among powder, dodecyl sulphate barium, MorwetEFW, the TERWET1004.
6. weed killer herbicide fluroxypyr as claimed in claim 1 and ethoxy sulphur swell composite water-dispersible granules, it is characterized in that: the ratio of the mass percent of described disintegrant is 5%～10%, and disintegrant is any one or the multiple mixture in sodium sulphate, ammonium sulfate, urea, sodium bicarbonate, carboxymethyl cellulose, modified starch, methylcellulose, HEMC, sodium laurate, sodium alginate, the aluminium-magnesium silicate etc.
7. weed killer herbicide fluroxypyr as claimed in claim 1 and ethoxy sulphur swell composite water-dispersible granules, it is characterized in that: the ratio of the mass percent of described binding agent is 0.5%～1.5%, and binding agent is any one or the multiple mixture in polyvinylpyrrolidone, sodium carboxymethylcellulose, white granulated sugar, starch, soluble starch, polyvinyl alcohol, xanthans, the polyethylene glycol.
8. weed killer herbicide fluroxypyr as claimed in claim 1 and ethoxy sulphur swell composite water-dispersible granules, it is characterized in that: described carrier is any one or the multiple mixture in kaolin, diatomite, white carbon, potter's clay, attapulgite, atlapulgite, the fine particle calcium carbonate.
9. preparation method of the grand composite water-dispersible granules of weed killer herbicide fluroxypyr and ethoxy sulphur according to claim 1 is characterized in that may further comprise the steps:
Grand and dispersant, wetting agent, disintegrant, binding agent, carrier with fluroxypyr and ethoxy sulphur; feed intake by charge ratio; and mix; carry out fine pulverizing through comminution by gas stream; mediate again; after extruder grain or carry out granulation, drying in the fluidized granulating machine promptly gets product.
10. preparation method of the grand composite water-dispersible granules of weed killer herbicide fluroxypyr and ethoxy sulphur according to claim 1 is characterized in that may further comprise the steps:
Grand and dispersant, wetting agent, disintegrant, binding agent, carrier feed intake by charge ratio with water, fluroxypyr and ethoxy sulphur, join in the mixing kettle that has the high shear dispersion machine, and mix, and make the suspension of solid content 50%～70%; Suspension forms material with the suspension of the particle size dispersion below 2.5 microns in water again by the physics peptizaiton of horizontal or vertical grinding machine; Suspension is pressed into drying tower with material from nozzle by membrane pump again, is split into drop; Hot-air in the drying tower is to enter in the tower by the hot-air distributor on the top cover, sprays into thermal air current from top to bottom, and evaporation drying forms dry spheric granules powder; Draw off from discharging opening; Thinner particulate material is extracted by air exhauster with dry air and enters dust pelletizing system, and thinner particulate material recovery set is used in the mixing kettle that has the high shear dispersion machine.
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| CN107136111A (en) * | 2017-06-16 | 2017-09-08 | 浙江天丰生物科学有限公司 | Herbicidal composition for rice field |
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Application publication date: 20111019 |