CN101518239A - Captan water dispersible granule and preparation method thereof - Google Patents
Captan water dispersible granule and preparation method thereof Download PDFInfo
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- CN101518239A CN101518239A CN200810101132A CN200810101132A CN101518239A CN 101518239 A CN101518239 A CN 101518239A CN 200810101132 A CN200810101132 A CN 200810101132A CN 200810101132 A CN200810101132 A CN 200810101132A CN 101518239 A CN101518239 A CN 101518239A
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Abstract
The invention discloses a captan water dispersible granule insecticide which contains captan, wherein the weight percentages of components of the captan water dispersible granule are as follows: 5 percent to 80 percent of captan, 1 percent to 12 percent of dispersant, 1 percent to 12 percent of wetting agent, 5 percent to 30 percent of disintegrating agent, 1 percent to 10 percent of binder, as well as carrier with a weight percentage making up to 100 percent. The captan water dispersible granule has specific effects to pythium pathogenic germs and is used for treating various diseases of fruit trees, vegetables and cash crops, such as root rot of vegetables, damping-off diseases, epidemics, downy mildews and anthracnose. The captan water dispersible granule insecticide has high disintegrating speed, no dust and no package pollution, and is safe to environment, human, animals and other beneficial organisms and unlikely to cause chemical injury. The preparation technique is simple. The invention is easy to use and suitable to be applied in a large area.
Description
Technical field
The present invention relates to a kind of preparation method of pesticidal preparations, specifically relate to a kind of preparation method of captan water dispersible granule.This bactericide has special efficacy to the pythium pathogen, can be used for preventing and treating multiple diseases on fruit tree, vegetables and the economic crops, as vegetable root rot, damping off, eqpidemic disease, downy mildew and anthracnose are had good control efficiency.
Technical background
The formulations of pesticide such as missible oil, pulvis and wetting powder etc. account for about 80% in China's preparation total amount.Along with the continuous development of the formulations of pesticide, the shortcoming of conventional dosage forms is apparent more outstanding in recent years.Contain organic solvents such as a large amount of dimethylbenzene, toluene in the missible oil, not only environment has been caused than severe contamination, and the petrochemical industry resource has been caused waste.Wetting powder often occurs dust from flying because its granularity is very thin in production and use, not only endanger people's health, also can cause environmental pollution, and low amounts of dust is flown upward and is easy to make crops to produce the key.Pulvis subject matter is the dust drift, and volume is big, is difficult for metering, existing arid area and some particular places of only being used for.Water dispersible granules has effectively been avoided the weak point of these conventional dosage forms, draws and utilized its advantage, develops very rapidly, is considered to one of the most promising formulation in 21st century pesticide processing field.
Captan (captan) is broad-spectrum treatment and protectiveness organosulfureous fungicide, and pure product are white crystals, 178 ℃ of fusing points; be insoluble to oil, meet the alkali instability, decompose during near fusing point; non-corrosiveness, but its catabolite is corrosive, and toxicity is low; to the high poison of fish; to the bird low toxicity, application on human skin there is excitant, have the bactericide of protective effect and therapeutic action concurrently; can use with most common pesticides, but can not use with strong basicity medicament and finish.Be mainly used in spraying.Also can make seed treatment, dip product after the results, carry out soil treatment before the sowing or before planting, generally with 0.1% left and right sides concentration spraying.The scab of control fruit tree, vegetables, flowers and other economic crops etc., downy mildew, powdery mildew, anthracnose, gray mold, early blight, late blight etc.The 0.3-0.5% that presses seed weight handles seed, can prevent and treat cereal class smut, disease in cotton seedling stage etc.
Technology contents
The objective of the invention is to captan be that the preparation of former medicine is efficient, low toxicity, environment amenable bactericide.
The present invention is achieved through the following technical solutions:
A kind of captan water dispersible granule bactericide, the percentage by weight of each component is in the prescription: captan 5-80%, dispersant 1-12%, wetting agent 1-12%, disintegrant 5-30%, adhesive 1-10%, carrier is mended to 100%.
Described dispersant is selected from the equal polyoxy sodium salt of acrylic acid, dioctyl sodium sulphosuccinate, phosphate, polyoxyethylene polyoxy third rare ether, one or more in the sulfonate.
Described wetting agent is selected from sodium lignin sulfonate, and lauric acid sodium sulphate draws back powder, one or more in the lauryl sodium sulfate.
Described disintegrant is selected from bentonite, sodium cellulose glycolate, aluminium chloride, sulfuric acid amine, one or more in the sodium sulphate.
Described adhesive is selected from gum Arabic, polyvinyl alcohol, polyethylene glycol, one or more in the polyvinylpyrrolidone.
Described carrier is selected from precipitated calcium carbonate, diatomite, kaolin, one or more in the white carbon black.
Described captan water dispersible granule manufacturing process is: earlier formulation material mixed, is ground into powder, add then and carry out granulation in the fluidized bed prilling dryer through micro jet, and drying, screening is after sample analysis, qualified can the packing.
Compared with prior art, captan water dispersible granule bactericide of the present invention has following advantage:
1, fungicide preparation of the present invention is to environment, and people and animals and other beneficial organism safety are difficult for producing poisoning.
2, fungicide preparation of the present invention does not have dust, and the particle disintegration rate is fast and do not have a bales stained.
3, fungicide preparation preparing process of the present invention is simple, easy to use, is suitable for large scale application.
4, fungicide preparation bin stability of the present invention is good, can deposit more than 2 years.
Specific embodiments
In order to understand the present invention better, the invention will be further described below in conjunction with example.
Example 1
Getting content is the former medicine 10.5kg of 95% captan, with dioctyl sodium sulphosuccinate 2.0kg, draw back powder 3.0kg, sulfuric acid amine 25.0kg, polyethylene glycol 1.0kg, after kaolin 58.5kg mixes, be ground into powder through micro jet, add then and carry out granulation, drying in the fluidized bed prilling dryer, screening is after sample analysis, qualified can the packing.
Example 2
Getting content is the former medicine 21.1kg of 95% captan, with acrylate homopolymer sodium salt 3.0kg, sodium lignin sulfonate 6.0kg, sulfuric acid amine 20.0kg, polyethylene glycol 1.0kg, after precipitated calcium carbonate 48.9kg mixes, be ground into powder through micro jet, add then and carry out granulation, drying in the fluidized bed prilling dryer, screening is after sample analysis, qualified can the packing.
Example 3
Getting content is the former medicine 31.6kg of 95% captan, with polyoxyethylene polyoxy third rare ether 3.0kg, draw back powder 7.0kg, sulfuric acid amine 15.0kg, polyvinyl alcohol 2.0kg, after white carbon black 41.4kg mixes, be ground into powder through micro jet, add then and carry out granulation, drying in the fluidized bed prilling dryer, screening is after sample analysis, qualified can the packing.
Example 4
Getting content is the former medicine 52.7kg of 95% captan, with acrylate homopolymer sodium salt 4.0kg, draw back powder 8.0kg, sulfuric acid amine 15.0kg, polyvinyl alcohol 1.0kg, after kaolin 19.3kg mixes, be ground into powder through micro jet, add then and carry out granulation, drying in the fluidized bed prilling dryer, screening is after sample analysis, qualified can the packing.
Example 5
Getting content is the former medicine 84.2kg of 95% captan, with sulfonate 3.0kg, lauric acid sodium sulphate 7.0kg, sulfuric acid amine 4.8kg, polyvinyl alcohol 1.0kg, after mixing, be ground into powder through micro jet, add then and carry out granulation, drying in the fluidized bed prilling dryer, screening is after sample analysis, qualified can the packing.
Above-mentioned example shows, captan water dispersible granule bactericide of the present invention, and no dust, the particle disintegration rate is fast, does not have bales stained, to environment, people and animals and other beneficial organism safety.In addition, water dispersible granules bactericide of the present invention is stored with easy to use, and product stability is good, can deposit more than 2 years, and its preparation technology is simple, is suitable for large scale application.
Claims (6)
1. captan water dispersible granule bactericide, the percentage by weight of each component is in it is characterized in that filling a prescription: captan 5-80%, dispersant 1-12%, wetting agent 1-12%, disintegrant 5-30%, adhesive 1-10%, carrier is mended to 100%.
2. captan water dispersible granule bactericide according to claim 1 is characterized in that described dispersant is selected from the equal polyoxy sodium salt of acrylic acid, dioctyl sodium sulphosuccinate, phosphate, polyoxyethylene polyoxy third rare ether, one or more in the sulfonate.
3. according to claim 1 described captan water dispersible granule bactericide, it is characterized in that described wetting agent is selected from sodium lignin sulfonate, lauric acid sodium sulphate draws back powder, one or more in the lauryl sodium sulfate.
4. according to claim 1 described captan water dispersible granule bactericide, it is characterized in that described disintegrant is selected from bentonite, sodium cellulose glycolate, aluminium chloride, sulfuric acid amine, one or more in the sodium sulphate.
5. according to claim 1 described captan water dispersible granule bactericide, it is characterized in that described adhesive is selected from gum Arabic, polyvinyl alcohol, polyethylene glycol, one or more in the polyvinylpyrrolidone.
6. according to claim 1 described captan water dispersible granule bactericide, it is characterized in that described carrier is selected from precipitated calcium carbonate, diatomite, kaolin, one or more in the white carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810101132A CN101518239B (en) | 2008-02-28 | 2008-02-28 | Captan water dispersible granule and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810101132A CN101518239B (en) | 2008-02-28 | 2008-02-28 | Captan water dispersible granule and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101518239A true CN101518239A (en) | 2009-09-02 |
| CN101518239B CN101518239B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810101132A Expired - Fee Related CN101518239B (en) | 2008-02-28 | 2008-02-28 | Captan water dispersible granule and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102057927A (en) * | 2011-01-08 | 2011-05-18 | 陕西美邦农药有限公司 | Bactericidal composition containing captan and triazole compounds |
| CN102150676A (en) * | 2010-12-13 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Synergic sterilization composition containing captan |
| CN102150674A (en) * | 2010-12-15 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition containing captan |
| CN105248463A (en) * | 2014-07-16 | 2016-01-20 | 陕西美邦农药有限公司 | Sterilization composition containing polygonum cuspidatum extract |
| CN111657277A (en) * | 2020-05-06 | 2020-09-15 | 南京威尔生物科技有限公司 | Water dispersible granule containing solid dispersant and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268290A (en) * | 2000-04-25 | 2000-10-04 | 江苏省农药研究所 | Granulating method of pesticide water-dispersing granules preparation |
| JP4839558B2 (en) * | 2001-09-26 | 2011-12-21 | 住友化学株式会社 | Granular wettable powder |
| CN1537428A (en) * | 2003-10-22 | 2004-10-20 | 河北宣化农药有限责任公司 | Composite of herbicide |
| CN101019535B (en) * | 2007-02-14 | 2010-11-24 | 山东省烟台市农业科学研究院 | Germicide composition containing captan and possessing synergy |
-
2008
- 2008-02-28 CN CN200810101132A patent/CN101518239B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102150676A (en) * | 2010-12-13 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Synergic sterilization composition containing captan |
| CN102150674A (en) * | 2010-12-15 | 2011-08-17 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition containing captan |
| CN102150674B (en) * | 2010-12-15 | 2013-11-06 | 陕西韦尔奇作物保护有限公司 | Bactericidal composition containing captan |
| CN102057927A (en) * | 2011-01-08 | 2011-05-18 | 陕西美邦农药有限公司 | Bactericidal composition containing captan and triazole compounds |
| CN105248463A (en) * | 2014-07-16 | 2016-01-20 | 陕西美邦农药有限公司 | Sterilization composition containing polygonum cuspidatum extract |
| CN111657277A (en) * | 2020-05-06 | 2020-09-15 | 南京威尔生物科技有限公司 | Water dispersible granule containing solid dispersant and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101518239B (en) | 2012-10-03 |
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