CN102726379B - Pyraclostrobin water dispersible granule and preparation method thereof - Google Patents
Pyraclostrobin water dispersible granule and preparation method thereof Download PDFInfo
- Publication number
- CN102726379B CN102726379B CN201210188236.3A CN201210188236A CN102726379B CN 102726379 B CN102726379 B CN 102726379B CN 201210188236 A CN201210188236 A CN 201210188236A CN 102726379 B CN102726379 B CN 102726379B
- Authority
- CN
- China
- Prior art keywords
- pyraclostrobin
- water dispersible
- dispersible granule
- preparation
- binding agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a kind of pyraclostrobin water dispersible granule and preparation method thereof, the percentage by weight of each component is: pyraclostrobin 10 ~ 80%, wetting agent 1 ~ 8%, dispersant 1 ~ 10%, disintegrant 1 ~ 40%, defoamer 0.3 ~ 5%, binding agent 0.5 ~ 4%, and surplus is carrier.The invention also discloses the preparation method of above-mentioned pyraclostrobin water dispersible granule.Instant invention overcomes the shortcoming of suspending agent and wetting powder, have both environmental protection and the low advantage of use cost, in processing and use procedure, reduce the pollution to environment, and reduce peasant's use cost, be a main trend of current pesticidal preparations formulation development.
Description
Technical field
The invention belongs to pesticide field, be specifically related to a kind of pyraclostrobin water dispersible granule and preparation method thereof.
Background technology
Chemical control is the important means that the mankind prevent and treat agricultural damage by disease and insect, chemical pesticide is to ensureing that the increasing both production and income of agricultural plays very important effect, but the use of agricultural chemicals, while Ensuring Food Safety is produced, also bring a series of environment and the social concerns such as residual, pollution.Be only due to chemical pesticide itself, and cause because the formulations of pesticide are processed and application process is unreasonable to a great extent.It is reported, the availability of conventional type agricultural chemicals only has 20% ~ 30%, and percent of loss is by all means up to 50% ~ 60%, and this is not only a kind of waste economically, and causes large-scale environmental pollution.Therefore, develop safety, high-efficiency environment friendly, prolongation lasting period, alleviate poisoning, reduce agricultural chemicals novel form preparation that is residual, the range of application that increases agricultural chemicals in the environment and become one of developing direction of pesticide in future formulation.Preparation Forms of Modern Pesticide to water baseization, ultramicronising, without the future development such as dust and Co ntrolled release.
Pyraclostrobin is mitochondrial respiratory inhibitor, namely in synthesizing at cytochrome b cl, stops electro transfer.There is protection, treatment, blade infiltration conduction.Pyraclostrobin shows through field control effectiveness test result: have a good control efficiency to powdery mildew of cucumber, downy mildew and banana freckle, leaf spot.Prevent and treat powdery mildew of cucumber, the dosage of downy mildew is active ingredient 75-150g/km
2.In their early stage even spraying after thin up. general spray medicine 3-4 time. interval 7d sprays 1 medicine.The active ingredient concentration of control banana freckle, leaf spot is 83.3 ~ 250mg/kg (extension rate is 1000-3000 times), and start spraying in their early stage, general spray medicine 3 times, interval 10d sprays 1 medicine, and spray medicine number of times is depending on the state of an illness.To cucumber, banana safety, have no poisoning and occur.Only has the emulsifiable concentrate Pesticidal products of pyraclostrobin-containing in the market.
Current pyraclostrobin is mainly based on missible oil, and because cream preparation mainly adopts aromatic organic solvent to prepare, a large amount of aromatic organic solvents not only has certain pollution to environment as toluene, dimethylbenzene, mixed toluene etc., also consumes a large amount of fossil resources.Preparation Forms of Modern Pesticide towards water baseization, ultramicronising, without efflorescence and Co ntrolled release aspect development, namely be the formulations of pesticide of matrix with water, wherein water dispersible granules is that a kind of organic solvent is as far as possible few by even no, good drug efficacy, environmentally-friendly water-basedization novel pesticide formulation, is also a kind of excellent liquid dosage form replacing emulsifiable concentrates for agricultural chemicals.
The water dispersible granules of pyraclostrobin of the present invention has efficiently, low toxicity, environmentally friendly, person poultry safety, the feature of easy degraded, compared with traditional missible oil, greatly reduce production cost, save a large amount of fossil resources, and pyraclostrobin water dispersible granule of the present invention replaces a large amount of organic solvents with water, avoid producing pollution, explosive and poisoning problem in production, make that pesticide processing is low to be poisoned, ensure the mankind and mammiferous safety and health.
Summary of the invention
Object of the present invention be exactly overcome exist in prior art environmental pollution, be detrimental to health and the shortcoming such as use cost is high, develop a kind of high-load, environment-friendly type, availability be high, and pyraclostrobin water dispersible granule easy to use.Water dispersible granules grows up on the basis of wetting powder and suspending agent, this formulation overcomes the shortcoming of suspending agent and wetting powder, has had both environmental protection and the low advantage of use cost, in processing and use procedure, reduce the pollution to environment, and reduce peasant's use cost.
Another object of the present invention is to provide a kind of preparation method of above-mentioned water dispersible granules.
The present invention have developed using mineral substance, plant or contains earthfill rockfill concrete riprap RCC material as carrier, and add auxiliary agent etc., making it granulating and forming is water dispersible granules.This water dispersible granules rapid disintegration dispersion can form suspension in water.Water dispersible granules stable performance of the present invention, packaging, storage, transport are all very convenient.
Technical scheme of the present invention: a kind of pyraclostrobin water dispersible granule, each component is as follows by weight percentage: pyraclostrobin 10 ~ 80%, wetting agent 1 ~ 8%, dispersant 1 ~ 10%, disintegrant 1 ~ 40%, binding agent 0.5 ~ 4%, defoamer 0.3 ~ 5%, surplus are carrier.
Wherein said wetting agent is selected from the combination of one or more in Tea Saponin, lignosulfite, lauryl sodium sulfate, sulfosuccinic monooctyl ester sodium salt, dialkyl succinylsuccinate sulfonate, fatty alcohol-polyoxyethylene ether, sodium alkyl benzene sulfonate, alkylnaphthalene sulfonate.
Described dispersant be selected from alkylphenol polyoxyethylene formaldehyde condensation products, sodium sulfate of polyethenoxy ether of fatty alcohol, lignosulfonates, polycarboxylate, naphthalenesulfonate formaldehyde condensation compound, to the combination of one or more in methoxyl group fatty acyl anilinesulfonic acid.
Described disintegrant is selected from the combination of one or more in sodium sulphate, calcium chloride, polyvinyl pyrrolidone, urea, sodium carboxymethyl starch, starch, sodium carbonate, ammonium sulfate, sodium chloride, bentonite.
Described binding agent is selected from the combination of one or more in polyethylene glycol, carboxymethyl cellulose, polyvinyl alcohol, glucose, gelatin, soybean protein, sodium silicate, gypsum.
Described defoamer is selected from organosilicon ketone, C
8 ~ 10fatty alcohol, C
10 ~ 20the combination of one or more in representative examples of saturated aliphatic hydroxy acid and lipid thereof, ester-ether type compound, isooctanol.
Described carrier is selected from the combination of one or more in kaolin, diatomite, precipitated calcium carbonate, white carbon, attapulgite, corncob cellulose, sepiolite, calcite, silica, pyrophyllite, xylitol, montmorillonite, potter's clay.
The preparation process of pyraclostrobin water dispersible granule of the present invention is as follows.
A, choose raw material according to following ingredients percentage by weight: pyraclostrobin 10 ~ 80%, wetting agent 1 ~ 8%, dispersant 1 ~ 10%, disintegrant 1 ~ 40%, defoamer 0.3 ~ 5%, binding agent 0.5 ~ 4%, carrier surplus.Except binding agent, other raw material mixes and obtains mixture.
B, after above mixture is carried out ultramicro grinding by airslide disintegrating mill, obtain female powder.
C, the female powder obtained is taken certain amount put into revolving fluid bed after ultramicro grinding.
The aqueous solution that d, revolving of unlatching fluid bed also slowly add binding agent toward it carries out granulation.
E, etc. granulation complete after dry.
F, the shot-like particle of oven dry carried out sieve, namely obtain pyraclostrobin water dispersible granule after analytical control.
Be compared with the prior art, advantage of the present invention and good effect as follows.
1, neither need with organic solvent, not have again dust drift about, can not burn, can not explode, petroleum resources can be saved and alleviate environmental pollution, to operator and Environmental security in production and use procedure.
2, the preparation of high-load can be processed into as required, save packaging, storage, cost of transportation.
3, physics, stable chemical nature, not easily decomposes rotten.
4, finished product is granular solids, good fluidity, and after toppling over, not sticky wall, can not remain in packing container and form secondary pollution.
5, available papery packaging, is convenient to reclaim and destroys or natural degradation.
6, after powder dispersion, diameter is superfine, is conducive to target and fully absorbs and play a role, can reduce effective ingredient consumption, improve effect.
7, in the present invention owing to adding the auxiliary agent of heterogeneity, make the present invention have active component content high, environmental pollution is little, and disintegration rate is fast, and dispersive property good and hot storage steady performance, drug effect is high, and safety is good.
Accompanying drawing explanation
Fig. 1 is the process chart of preparation method of the present invention.
Embodiment
Essence for a better understanding of the present invention, by embodiment, technology contents of the present invention is described below, but content of the present invention is not limited thereto.
Embodiment 1:80% pyraclostrobin water dispersible granule.
Take the former powder 80% of pyraclostrobin, wetting agent lauryl sodium sulfate 4%, dispersant polycarboxylate 3%, sodium lignin sulfonate 4%, disintegrant sodium sulphate 5%, defoamer isooctanol 0.4%, binding agent sucrose 0.5%, carrier kaolin is mended to 100%; Pyraclostrobin and all the other auxiliary agents except binding agent are pressed formula rate in Agravicmixer, mixes 20 minutes, again its mixture is put into double worm mixer (I), mixing limit, limit is pulverized through airslide disintegrating mill and is reached more than particle diameter 1000 order, collected by cyclopneumatic separator and sack cleaner, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take quantitative female powder again in revolving fluidized bed pelletizer, spray into adhesive solution by formula, finally dry, obtain irregular particle shape water dispersible granules, then carry out screening and obtain uniform 80% pyraclostrobin water dispersible granule.Through checking active constituent content to be 80%, moisture≤2.0%, pH value 7.2, suspensibility >=90%, persistent foamability (1min)≤10mL, wetability≤1min, dust≤3.0%, acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450 ~ 675g(active ingredient)/hm2, preventive effect is 88% ~ 95%.
Embodiment 2:50% pyraclostrobin water dispersible granule.
Take the former powder 50% of pyraclostrobin, wetting agent lauryl sodium sulfate 4%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, sodium lignin sulfonate 4%, disintegrant urea 30%, binding agent sucrose 0.5%, defoamer organic silicone 0.3%, carrier diatomaceous earth is mended to 100%, pyraclostrobin and all the other auxiliary agents except binding agent are pressed formula rate in Agravicmixer, mixes 20 minutes, again its mixture is put into double worm mixer (I), mixing limit, limit is pulverized through airslide disintegrating mill and is reached more than particle diameter 1000 order, collected by cyclopneumatic separator and sack cleaner, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder.Accurately take quantitative female powder again in revolving fluidized bed pelletizer, spray into adhesive solution by formula, finally dry, obtain the water dispersible granules of irregular particle shape, then carry out screening and obtain uniform 50% pyraclostrobin water dispersible granule.Through checking active constituent content to be 50.1%, moisture≤2.0%, pH value 7.2, suspensibility >=90%, persistent foamability (1min)≤10mL, wetability≤1min, dust≤3.0%, acceleration heat storage stability is qualified.For preventing and treating eliminating vegetable botrytis, dosage is 450 ~ 675g(active ingredient)/hm2, preventive effect is 87% ~ 92%.
The pyraclostrobin water dispersible granule adopting formula of the present invention to process, the results showed, this product has good dispersiveness, and active ingredient unrestrictedly suspends, and disintegration rate is fast, and disintegration time is less than 1min; Heat storage stability is good; And in use adhesion rate is high, the lasting period is long.The present invention's bactericidal potency in production application is high, proves, all can reach more than 80%, and safety is good to the control efficiency of gray mold through test.
Owing to adding the auxiliary agent of heterogeneity in the present invention, make the present invention have active component content high, environmental pollution is little, and disintegration rate is fast, and dispersive property good and hot storage steady performance, in use weeding usefulness is high, and safety is good.
Claims (1)
1. a pyraclostrobin water dispersible granule, it is characterized in that being made up of the component of following percentage by weight: the former powder 80% of pyraclostrobin, wetting agent lauryl sodium sulfate 4%, dispersant polycarboxylate 3%, sodium lignin sulfonate 4%, disintegrant sodium sulphate 5%, defoamer isooctanol 0.4%, binding agent sucrose 0.5%, carrier kaolin is mended to 100%;
Pyraclostrobin and all the other auxiliary agents except binding agent are pressed formula rate in Agravicmixer, mixes 20 minutes, again its mixture is put into double worm mixer (I), mixing limit, limit is pulverized through airslide disintegrating mill and is reached more than particle diameter 1000 order, collected by cyclopneumatic separator and sack cleaner, finally in double worm mixer (II), again mix 30 minutes, obtain uniform female powder; Take quantitative female powder again in revolving fluidized bed pelletizer, spray into adhesive solution by formula, finally dry, obtain irregular particle shape water dispersible granules, then carry out screening and obtain uniform 80% pyraclostrobin water dispersible granule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188236.3A CN102726379B (en) | 2012-06-09 | 2012-06-09 | Pyraclostrobin water dispersible granule and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188236.3A CN102726379B (en) | 2012-06-09 | 2012-06-09 | Pyraclostrobin water dispersible granule and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102726379A CN102726379A (en) | 2012-10-17 |
| CN102726379B true CN102726379B (en) | 2015-11-18 |
Family
ID=46983265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210188236.3A Active CN102726379B (en) | 2012-06-09 | 2012-06-09 | Pyraclostrobin water dispersible granule and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102726379B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102919255A (en) * | 2012-10-31 | 2013-02-13 | 青岛润生农化有限公司 | Agricultural compound fungicide |
| CN103210920A (en) * | 2013-03-24 | 2013-07-24 | 广东中迅农科股份有限公司 | Orysastrobin water dispersible granule and preparation method thereof |
| GB2519982B (en) * | 2013-11-04 | 2016-04-27 | Rotam Agrochem Int Co Ltd | Fungicidal composition and the use thereof |
| CN104872160A (en) * | 2015-05-14 | 2015-09-02 | 京博农化科技股份有限公司 | Pyraclostrobin preparation and preparation method thereof |
| CN106993611A (en) * | 2017-04-11 | 2017-08-01 | 明光市外泰高分子材料有限公司 | A kind of farm chemical carrier for adding attapulgite and preparation method thereof |
| CN108849952B (en) * | 2017-05-10 | 2020-11-17 | 江苏龙灯化学有限公司 | Pyraclostrobin water-dispersible solid composition and preparation method thereof |
| CN109792987A (en) * | 2019-01-21 | 2019-05-24 | 深圳诺普信农化股份有限公司 | Dry suspending agent and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248793A (en) * | 2008-03-12 | 2008-08-27 | 王英姿 | Bactericial composition containing pyrazole aether bacterium ester and multiple anti-teichomycin and uses thereof |
| CN101524082A (en) * | 2009-04-28 | 2009-09-09 | 北京燕化永乐农药有限公司 | Pyraclostrobin and prochloraz pesticide mixture |
| EP2356906A1 (en) * | 2003-10-23 | 2011-08-17 | Bayer Cropscience AG | Synergetic fungicide substance combinations |
| CN102405902A (en) * | 2011-11-07 | 2012-04-11 | 广东中迅农科股份有限公司 | Pyriftalid water dispersible granule and preparation method thereof |
-
2012
- 2012-06-09 CN CN201210188236.3A patent/CN102726379B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2356906A1 (en) * | 2003-10-23 | 2011-08-17 | Bayer Cropscience AG | Synergetic fungicide substance combinations |
| CN101248793A (en) * | 2008-03-12 | 2008-08-27 | 王英姿 | Bactericial composition containing pyrazole aether bacterium ester and multiple anti-teichomycin and uses thereof |
| CN101524082A (en) * | 2009-04-28 | 2009-09-09 | 北京燕化永乐农药有限公司 | Pyraclostrobin and prochloraz pesticide mixture |
| CN102405902A (en) * | 2011-11-07 | 2012-04-11 | 广东中迅农科股份有限公司 | Pyriftalid water dispersible granule and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102726379A (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102726379B (en) | Pyraclostrobin water dispersible granule and preparation method thereof | |
| CN102845419B (en) | Cyprodinil water dispersible granule and preparation method thereof | |
| CN102696589B (en) | A kind of flonicamid water dispersible granules and preparation method thereof | |
| CN100586284C (en) | Zhongshengmycin wettable powder and preparation method thereof | |
| CN101176448B (en) | Bismerthiazol water dispersible granula bactericide and preparation method thereof | |
| CN101999346A (en) | Emulsifiable granule containing etofenprox composition and preparation method thereof | |
| CN102726412B (en) | Pyridaben water dispersible granule and preparation method thereof | |
| CN103704222A (en) | Zinc thiazole water dispersible granules and preparation method thereof | |
| CN101978829A (en) | Pesticidal composition containing bifenazate and spirodiclofen | |
| CN102318601B (en) | Macleaya cordata total alkaloids water dispersion granule disinfectant and preparation method thereof | |
| CN101263807B (en) | Pyridaben clofentezine water dispersion granule and preparation thereof | |
| CN103918688A (en) | Weeding composition containing benzobicylon and halosulfuron-methyl | |
| CN104222161B (en) | Insecticides and its preparation method and application | |
| CN105961380A (en) | Water dispersible granule and anhydrous preparation technology thereof | |
| CN105410015A (en) | Chlorpyrifos water-dispersible granule and preparation method of same | |
| CN102415388A (en) | Environmentally friendly high efficiency paddy field herbicide and preparation method thereof | |
| CN102428921A (en) | Clodinafop-propargyl water dispersible granule and preparation method thereof | |
| CN103210913B (en) | Zoxamide water dispersible granule and preparation method thereof | |
| CN102763648A (en) | Trifloxystrobin water dispersible granule and preparation method thereof | |
| CN103210912B (en) | Ring worm hydrazides water dispersible granules and preparation method thereof | |
| CN102405902A (en) | Pyriftalid water dispersible granule and preparation method thereof | |
| CN102726378B (en) | Spinosad water dispersible granule and preparation method thereof | |
| CN101961017B (en) | Flubendiamide and azadirachtin compounded water dispersible granules and preparation method thereof | |
| CN102258041A (en) | Water dispersion granule of thiophanate methyl | |
| CN104872138A (en) | Bispyribac-sodium soluble granules and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190822 Address after: 225400 West of Daiwang Road, Taixing High-tech Industrial Development Zone, Taizhou City, Jiangsu Province Patentee after: Jiangsu yuan Qing Environmental Protection Technology Co., Ltd. Address before: 516000 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 24 District Patentee before: Guangdong Zhongxun Agricultural Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201217 Address after: Room 315, No.8 Nujiang Road, Hexi District, Tianjin 300202 Patentee after: Nantong Zhonggao (Tianjin) Intellectual Property Management Co., Ltd Address before: 225400 west side of Dai Wang Road, Taixing hi tech Industrial Development Zone, Taizhou, Jiangsu Patentee before: Jiangsu yuan Qing Environmental Protection Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |