CN102037970A - Pesticide formulation containing pyrithiobac-sodium - Google Patents
Pesticide formulation containing pyrithiobac-sodium Download PDFInfo
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- CN102037970A CN102037970A CN201110026442XA CN201110026442A CN102037970A CN 102037970 A CN102037970 A CN 102037970A CN 201110026442X A CN201110026442X A CN 201110026442XA CN 201110026442 A CN201110026442 A CN 201110026442A CN 102037970 A CN102037970 A CN 102037970A
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Abstract
The invention belongs to the field of weed killer, in particular to a pyrithiobac-sodium containing soluble powder, soluble granules and soluble tablets. The invention aims at providing a pyrithiobac-sodium containing pesticide new formulation as well as improving the utilization rate of active ingredients and enhancing environmental compatibility by improving the formulation. The technical scheme thereof includes that a pyrithiobac-sodium containing soluble powder, soluble granules or soluble tablets comprises the components such as pyrithiobac-sodium crude drug, wetting agent, dispersing agent and a carrier, wherein the soluble tablets also comprise adhesive, lubricating agent and disintegrating agent. The invention has the beneficial effects: firstly, product is completely dissolved in water when in use, thus spraying is more uniform; secondly, the pyrithiobac-sodium containing soluble powder, soluble granules and soluble tablets are solid, thus being convenient for production and transportation and reducing production cost.
Description
Technical field
The invention belongs to the pesticide herbicide field, particularly a kind of soluble powder, soluble granula and soluble tablets that contains pyrithiobac-sodium.
Background technology
The world today has proposed strict requirement to the safety of agricultural chemicals, make general enterprise can't bear funds and time that novel pesticide is developed, therefore, people carry out the research and development of formulation energetically, reduce or avoid the harmful effect of agricultural chemicals, to prolong the service life of agricultural chemicals.At present, the main direction of formulation processing is to make the preparation with following function: reduce toxicity, improve safety; Reduce and pollute; Alleviate poisoning to crop; Safer to the user; Easy to use, labor savings; Energy savings reduces price; Improve bioavailability; Develop towards the Water-borne modification direction.
Pyrithiobac-sodium has another name called pyrithiobacsodium; Chemical name: 2-chloro-6-(4,6-dimethoxypyridin-2-base sulphur) Sodium Benzoate, CAS number: the 123343-16-8 molecular formula: C13H10C1N2NaO4S molecular weight 348.7373, structural formula:
Pyrithiobac-sodium is the development of Japanese combinatorial chemistry company, combinatorial chemistry company, and former company of hole and du pont company are developed jointly, and in listing in 1994, the main formulation of releasing was 10% pyrithiobac-sodium water dispersible granules at present, is mainly used in preventing and kill off of cotton field weed.
There is big shortcoming in water dispersible granules in producing and using, dust drift in for example producing, use in bad dispersibility etc.Because pyrithiobac-sodium activity higher (cauline leaf is handled, 3g (active matter)/mu, soil processing 7g (active matter)/mu) has slightly in the use and mixes or the inhomogeneous poisoning generation that just causes of spraying.
Needs based on sustainable development, environmental protection; that the present invention filters out on the basis of a large amount of formulations processing especially prescription screening is effective, production and the common formulation of soluble powder, soluble granula, soluble tablets easy to use; the physical and chemical parameter of these formulations meets the requirement of the relevant agriculture chemical registration of China The Institute for the Control of Agrochemicals of the Ministry of Agriculture,PRC, and the availability of active ingredient and Environmental compatibility and safety all are better than the water dispersible granules of present application.
By retrieval, do not find the bibliographical information of pyrithiobac-sodium soluble powder, soluble granula, soluble tablets.
Summary of the invention
The present invention aims to provide a kind of pesticides new formulation that contains pyrithiobac-sodium, improves by formulation, has improved the availability of active ingredient, has strengthened Environmental compatibility, and safety is better than the water dispersible granules of present application.
Technical scheme of the present invention is: a kind of soluble powder that contains pyrithiobac-sodium, and its component and weight percentage are: the former medicine of pyrithiobac-sodium, 1～90%; Wetting agent, 0.1～10%; Dispersant, 0.1～20%; Carrier, surplus.
A kind of soluble granula that contains pyrithiobac-sodium, its component and weight percentage are: the former medicine of pyrithiobac-sodium, 1～85%; Wetting agent, 0.1～10%; Dispersant, 0.1～20%; Carrier, surplus.
A kind of soluble tablets that contains pyrithiobac-sodium, its component and weight percentage are: the former medicine of pyrithiobac-sodium, 1～85%; Wetting agent, 0.1～10%; Dispersant, 0.1～20%; Adhesive, 0～10%; Lubricant, 0～10%; Disintegrant, 0～40%; Carrier, surplus.
Described carrier is selected from one or more in white carbon, white sugar, citric acid, ammonium sulfate, sodium sulphate, sodium chloride, potassium chloride, potassium sulphate, soluble starch, urea, dextrin, lactose, mannitol, microcrystalline cellulose, sodium carboxymethylcellulose, aminoquinoxaline, talcum powder, sodium carbonate, the sodium bicarbonate.
Described wetting agent is selected from polyoxyethylene nonylphenol ether; OPEO; aliphatic alcohol sulfate; lauryl sodium sulfate; the alkylol polyethenoxy ether sodium sulfate; alkyl phenol polyethenoxy ether sodium sulfate; alkylphenol polyoxyethylene formaldehyde condensation products sulphate; sodium alkyl sulfonate; sodium alkyl benzene sulfonate; alkylnaphthalene sulfonate; dialkyl succinylsuccinate sulfonate; monoalkyl phenyl APEO succinic acid sodium sulfonate; fatty alcohol ethylene oxide adduct sulfonate; alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate; draw back powder; in the alkyl amide taurate one or more.
Described dispersant is selected from sodium lignin sulfonate, calcium lignosulfonate, alkyl how sodium sulfonate, sodium sulfonate formaldehyde condensation products, Sodium Polyacrylate, maleic acid di-sec-octyl sodium sulfonate, N-methyl fatty acyl group sodium taurocholate, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate, methyl one or more in the sulfonic formaldehyde condensation compound sulphate (NNO) how how.
Described adhesive is selected from one or more in plants starch, spent pulping liquor dry powder, carboxymethyl cellulose, polyvinyl alcohol, gelatin, gum Arabic, paraffin, stearic acid, the rosin.
Described lubricant is selected from one or more in dolomol, talcum powder, stearic acid, high melting-point wax, the corn starch.
Described disintegrant is selected from one or more in urea, ammonium sulfate, aminoquinoxaline, citric acid, sodium carbonate, sodium bicarbonate, sodium carboxymethylcellulose, crosslinked crospolyvinylpyrrolidone, low substituted hydroxy-propyl methylcellulose, the plants starch.Above-mentioned soluble powder, soluble granula and the soluble tablets that contains pyrithiobac-sodium all can be converted water spray and use.
Beneficial effect of the present invention is: the one, and product in use is dissolved in the water fully, and spraying is more even during use; The 2nd, owing to be solid pharmaceutical preparation, be convenient to produce and transportation, reduce production costs.
Embodiment
Specify the present invention below in conjunction with embodiment.Percentage all is weight percentage among the embodiment, and the treatment dosage of field efficacy is effective ingredient consumption.
1, soluble powder
Preparation method: in the Example formulations ratio, the former medicine of pyrithiobac-sodium is added in the carrier, and add wetting agent and dispersant therein, mix, the mixed again soluble powder that gets behind comminution by gas stream.Capital equipment has mixer, airslide disintegrating mill.
Embodiment 1:(20% soluble powder)
Prescription: pyrithiobac-sodium, 20%; Dispersant is selected sodium lignin sulfonate and NNO for use, and consumption is respectively 3% and 2%; Wetting agent draws back powder, and 1.5%; Carrier is selected white sugar for use, and 20%, sodium sulphate, surplus.
Embodiment 2:(40% soluble powder)
Prescription: pyrithiobac-sodium, 40%; Dispersant is selected calcium lignosulfonate and NNO for use, and consumption is respectively 3% and 3%; The wetting agent neopelex, 1.5%; Carrier is selected soluble starch for use, and 10%, urea, surplus.
Embodiment 3:(80% soluble powder)
Prescription: pyrithiobac-sodium, 80%; Dispersant N-methyl fatty acyl group sodium taurocholate, 5%; The wetting agent lauryl sodium sulfate, 1.5%; The carrier white carbon, surplus.
2, soluble granula
The preparation method: in the Example formulations ratio, the former medicine of pyrithiobac-sodium is added in the carrier, and adds wetting agent and dispersant therein, mix, through comminution by gas stream, after add 10～20% water, make water-soluble granula product through kneading, granulation, drying, screening; Maybe the powder that will pulverize water spray, granulation, drying in the fluidized granulating machine sieved afterwards and made product.Capital equipment has mixer, airslide disintegrating mill, kneader, Squeezinggranulator, drying room or fluid-bed drying, or fluidized granulating machine, screening machine.
Embodiment 4:(30% soluble granula)
Prescription: pyrithiobac-sodium, 30%; Dispersant polycarboxylate, 4%, the wetting agent lauryl sodium sulfate, 2%; Carrier is selected white sugar for use, and 20%, soluble starch, surplus.
Embodiment 5:(50% soluble granula)
Prescription: pyrithiobac-sodium, 50%; Dispersant NNO, 6%; Wetting agent OP-10,2%; Carrier is selected white carbon for use, and 5%, ammonium sulfate, surplus.
Embodiment 6:(70% soluble granula)
Prescription: pyrithiobac-sodium, 70%; The dispersant sodium lignin sulfonate, 5%; Wetting agent draws back powder, and 2%; Carrier is selected white carbon for use, and 3%, glucose, surplus.
3, soluble tablets
Preparation method: in the Example formulations ratio, the former medicine of pyrithiobac-sodium is added in the carrier, and add wetting agent, dispersant and other functional aids therein, mix,, carry out compressing tablet after mixing again through comminution by gas stream.Capital equipment has mixer, airslide disintegrating mill, tablet press machine.
Embodiment 7:(20% soluble tablets)
Prescription: pyrithiobac-sodium, 20%; Dispersant NNO, 5%; Wetting agent draws back powder, and 2%; The disintegrant aminoquinoxaline, 30%; The lubricant talcum powder, 2%; The carrier soluble starch, surplus.
Embodiment 8:(40% soluble tablets)
Prescription: pyrithiobac-sodium, 40%; The dispersant sodium lignin sulfonate, 8%; The wetting agent lauryl sodium sulfate, 1%; Disintegrant is selected citric acid and sodium carbonate for use, and consumption is respectively 2% and 2.5%; The lubricant talcum powder, 1%; The carrier lactose, surplus.
Difference for herbicidal effect between the checking different dosage form, we have detected the fresh weight inhibiting rate of different dosage form to the barnyard grass grass, test method is as follows: adopt the greenhouse pot culture cultivation, the soil that adopt back in the farmland of never using weed killer herbicide is air-dry, back dress basin sieves, quantitative 4/5 place of dry ground in the basin, P in soil H value 7.0, the content of organic matter 1.2%, soil surface in the basin is managed in 30 uniform broadcastings of barnyard grass grass seed throughout, cultivate behind the blinding 0.5cm, 32～28 ℃ of cultivation temperature (d/n), relative moisture 75～15%, dispenser after 2～3 leaf thinnings of barnyard grass grass are decided strain to stay 15, dispenser adopt ASS-1 type pesticide spraying system (DG8003 shower nozzle, atomisation pressure 2.75MPA, spouting liquid 30kg/ mu), dispenser is placed on cultivates the poisoning situation of observing weeds in the greenhouse, and different medicaments are carried out record to the deadly speed of weeds, adopted growth inhibition assay research and appraisal medicament to make the activity of weeding of cauline leaf processing to the target weeds in 15 days behind the medicine, measurement result sees Table 1.
Each formulation of table 1 pyrithiobac-sodium is to the fresh weight inhibiting rate measurement result of barnyard grass grass
Table 1 shows that pyrithiobac-sodium is by between the ED90=48.9723～52.6865ai.g/ha that is processed into soluble powder, soluble granula and soluble tablets.Field trial shows, annual and perennial grassy weed and most of broad leaved weed effect are remarkable to the cotton field in the present invention, to difficulty cut weeds as variously lead a cow, Siberian cocklebur, piemarker, thorn chrysanthemum standing grain read, Tian Pu, Aleppo grass etc. has good preventive effect.
Claims (9)
1. a soluble powder that contains pyrithiobac-sodium is characterized in that, its component and weight percentage are: the former medicine of pyrithiobac-sodium, 1～90%; Wetting agent, 0.1～10%; Dispersant, 0.1～20%; Carrier, surplus.
2. a soluble granula that contains pyrithiobac-sodium is characterized in that, its component and weight percentage are: the former medicine of pyrithiobac-sodium, 1～85%; Wetting agent, 0.1～10%; Dispersant, 0.1～20%; Carrier, surplus.
3. a soluble tablets that contains pyrithiobac-sodium is characterized in that, its component and weight percentage are: the former medicine of pyrithiobac-sodium, 1～85%; Wetting agent, 0.1～10%; Dispersant, 0.1～20%; Adhesive, 0～10%; Lubricant, 0～10%; Disintegrant, 0～40%; Carrier, surplus.
4. according to described soluble powder, soluble granula or the soluble tablets that contains pyrithiobac-sodium of the arbitrary claim of claim 1～3, it is characterized in that described carrier is selected from one or more in white carbon, white sugar, citric acid, ammonium sulfate, sodium sulphate, sodium chloride, potassium chloride, potassium sulphate, soluble starch, urea, dextrin, lactose, mannitol, microcrystalline cellulose, sodium carboxymethylcellulose, aminoquinoxaline, talcum powder, sodium carbonate, the sodium bicarbonate.
5. according to the described soluble powder that contains pyrithiobac-sodium of the arbitrary claim of claim 1～3; soluble granula or soluble tablets; it is characterized in that described wetting agent is selected from polyoxyethylene nonylphenol ether; OPEO; aliphatic alcohol sulfate; lauryl sodium sulfate; the alkylol polyethenoxy ether sodium sulfate; alkyl phenol polyethenoxy ether sodium sulfate; alkylphenol polyoxyethylene formaldehyde condensation products sulphate; sodium alkyl sulfonate; sodium alkyl benzene sulfonate; alkylnaphthalene sulfonate; dialkyl succinylsuccinate sulfonate; monoalkyl phenyl APEO succinic acid sodium sulfonate; fatty alcohol ethylene oxide adduct sulfonate; alkylphenol formaldehyde condensation product ethylene oxide adduct sulfonate; draw back powder; in the alkyl amide taurate one or more.
6. according to described soluble powder, soluble granula or the soluble tablets that contains pyrithiobac-sodium of the arbitrary claim of claim 1～3; it is characterized in that described dispersant is selected from sodium lignin sulfonate, calcium lignosulfonate, alkyl how sodium sulfonate, sodium sulfonate formaldehyde condensation products, Sodium Polyacrylate, maleic acid di-sec-octyl sodium sulfonate, N-methyl fatty acyl group sodium taurocholate, di-2-ethylhexylphosphine oxide bitter edible plant sodium sulfonate, methyl one or more in the sulfonic formaldehyde condensation compound sulphate (NNO) how how.
7. the soluble tablets that contains pyrithiobac-sodium according to claim 3, it is characterized in that described adhesive is selected from one or more in plants starch, spent pulping liquor dry powder, carboxymethyl cellulose, polyvinyl alcohol, gelatin, gum Arabic, paraffin, stearic acid, the rosin.
8. the soluble tablets that contains pyrithiobac-sodium according to claim 3 is characterized in that described lubricant is selected from one or more in dolomol, talcum powder, stearic acid, high melting-point wax, the corn starch.
9. the soluble tablets that contains pyrithiobac-sodium according to claim 3, it is characterized in that described disintegrant is selected from one or more in urea, ammonium sulfate, aminoquinoxaline, citric acid, sodium carbonate, sodium bicarbonate, sodium carboxymethylcellulose, crosslinked crospolyvinylpyrrolidone, low substituted hydroxy-propyl methylcellulose, the plants starch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110026442XA CN102037970A (en) | 2011-01-25 | 2011-01-25 | Pesticide formulation containing pyrithiobac-sodium |
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| CN201110026442XA CN102037970A (en) | 2011-01-25 | 2011-01-25 | Pesticide formulation containing pyrithiobac-sodium |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326581A (en) * | 2011-05-18 | 2012-01-25 | 江西正邦生物化工股份有限公司 | Emulsible triazophos granule and preparation method thereof |
| CN103039454A (en) * | 2013-01-22 | 2013-04-17 | 南京高正农用化工有限公司 | Pyrithiobac sodium-paraquat weeding composition and application thereof |
| CN103858863A (en) * | 2014-02-14 | 2014-06-18 | 南京善为生物科技有限公司 | Environmental-friendly thiamethoxam water-soluble powder and preparation method thereof |
| CN106577642A (en) * | 2016-11-29 | 2017-04-26 | 上海师范大学 | Pesticide spraying additive, preparation method, and application thereof |
| CN108935454A (en) * | 2012-07-19 | 2018-12-07 | 日本曹达株式会社 | Water dispersible granules |
| CN112106778A (en) * | 2020-10-30 | 2020-12-22 | 山东华阳农药化工集团有限公司 | Herbicide, water dispersible granule for weeding and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033050A (en) * | 1987-11-04 | 1989-05-24 | 古米埃(Kumiai)化学工业株式会社 | Pyrimidine derivatives and preparation method thereof and its herbicidal composition and herbicidal methods |
-
2011
- 2011-01-25 CN CN201110026442XA patent/CN102037970A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033050A (en) * | 1987-11-04 | 1989-05-24 | 古米埃(Kumiai)化学工业株式会社 | Pyrimidine derivatives and preparation method thereof and its herbicidal composition and herbicidal methods |
Non-Patent Citations (2)
| Title |
|---|
| SUZANNE KOCH SINGLES ET AL.: "《ACS Symposium Series》", 1 March 2002, article "Degradation of Pyrithiobac Sodium in Soil in the Laboratory and Field" * |
| 凌世海: "《农药剂型加工丛书（第三版） 固体制剂》", 31 March 2003, article "可溶性粉（粒）剂", pages: 177-201 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326581A (en) * | 2011-05-18 | 2012-01-25 | 江西正邦生物化工股份有限公司 | Emulsible triazophos granule and preparation method thereof |
| CN108935454A (en) * | 2012-07-19 | 2018-12-07 | 日本曹达株式会社 | Water dispersible granules |
| CN103039454A (en) * | 2013-01-22 | 2013-04-17 | 南京高正农用化工有限公司 | Pyrithiobac sodium-paraquat weeding composition and application thereof |
| CN103039454B (en) * | 2013-01-22 | 2014-12-03 | 南京高正农用化工有限公司 | Pyrithiobac sodium-paraquat weeding composition and application thereof |
| CN103858863A (en) * | 2014-02-14 | 2014-06-18 | 南京善为生物科技有限公司 | Environmental-friendly thiamethoxam water-soluble powder and preparation method thereof |
| CN103858863B (en) * | 2014-02-14 | 2016-09-21 | 南京善思生物科技有限公司 | A kind of environmentally friendly Diacloden water solube powder and preparation method thereof |
| CN106577642A (en) * | 2016-11-29 | 2017-04-26 | 上海师范大学 | Pesticide spraying additive, preparation method, and application thereof |
| CN112106778A (en) * | 2020-10-30 | 2020-12-22 | 山东华阳农药化工集团有限公司 | Herbicide, water dispersible granule for weeding and preparation method thereof |
| CN112106778B (en) * | 2020-10-30 | 2021-07-20 | 山东华阳农药化工集团有限公司 | Herbicide, water dispersible granule for weeding and preparation method thereof |
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Application publication date: 20110504 |