CN102550565B - Imazethapyr water dispersible granules and preparation method thereof - Google Patents
Imazethapyr water dispersible granules and preparation method thereof Download PDFInfo
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- CN102550565B CN102550565B CN201210013818.8A CN201210013818A CN102550565B CN 102550565 B CN102550565 B CN 102550565B CN 201210013818 A CN201210013818 A CN 201210013818A CN 102550565 B CN102550565 B CN 102550565B
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Abstract
The invention discloses imazethapyr water dispersible granules, which comprise the following components in percentage by weight: 10 to 90 percent of imazethapyr, 1 to 12 percent of wetting agent, 1 to 12 percent of dispersant, 1 to 25 percent of disintegrating agent, 1 to 10 percent of adhesive, 1 to 5 percent of stabilizing agent, and the balance of carrier. The invention also discloses a preparation method for the imazethapyr water dispersible granules. The method is simple in process and low in cost; and the obtained imazethapyr water dispersible granules are safe and environment-friendly, do not produce dust pollution, are difficult to produce pesticide hazard, have an excellent prevent effect on annual or perennial gramineous weeds and certain broad leaf weeds in soybean fields and other bean plant fields such as amaranth, polygonum, goosefoots, nightshade, xanthium sibiricum, barnyard grass, setaria viridis, digitaria sanguinalis, proso millet and the like, are convenient to use, and are suitable for large-area popularization and use.
Description
Technical field
The present invention relates to a kind of pesticidal preparations and preparation method thereof, specifically relate to a kind of imazethapyr water dispersible granules and preparation method thereof.
Background technology
Pesticide water dispersible granules be the former medicine of water-fast solid pesticide and wetting agent, dispersant, other function additive and carrier after sufficiently mixing, be ground into trickle powdery solid, then through operations such as kneading, granulation, dry and screenings, form in water rapidly disintegration be that primary granule is big or small and be dispersed into the formulations of pesticide of stable suspension.Water dispersible granules does not have solvent and dust, to operator's safety, do not have elegant, the weak points such as the conventional dosage forms solvent loads such as missible oil, pulvis and wetting powder are large, dust is many have been avoided, draw and utilized its advantage, development rapidly, is considered to one of the most promising formulation in 21st century pesticide processing field.
Imazethapyr, common name: imazethapyr, Imazethapyr, Imazethapyr, Pu Shite, chemical name (RS) 5-ethyl-2-(4-isopropyl-4-methyl-5-oxo-2-imidazoline-2-yl) nicotinic acid.Imazethapyr is imidazolinone herbicide, is side chain amino acid synthetic inhibitor, sterling be light canescence to yellowish-brown crystal, fusing point 169-173 ℃.Imazethapyr is stable under acidity and neutrallty condition, chance highly basic decomposes, can be made into aqua, be mainly used in spraying, before sprouting or after sprouting, use, 1 year of Soybean Field and other leguminous plant fields or perennial grassy weed and some broad leaved weed are had to excellent preventive effect, as weeds such as three-coloured amaranth, knotweed, lamb's-quarters, black nightshade, Siberian cocklebur, barnyard grass, green foxtail, lady's-grass, broomcorn millets.At present, imazethapyr water dispersible granules and preparation method thereof has no report.
Summary of the invention
The present invention, in order to overcome deficiency of the prior art, provides a kind of imazethapyr water dispersible granules, and this formulation is less than conventional dosage forms solvent load, dust is few, to operator's safety.
The present invention also provides its preparation method, and the method process is simple, easy operating.
The present invention is achieved through the following technical solutions:
An imazethapyr water dispersible granules, is characterized in that comprising the composition of following percetage by weight: Imazethapyr 10-90%, wetting agent 1-12%, dispersant 1-12%, disintegrant 1-25%, binding agent 1-10%, stabilizing agent 1-5%, carrier surplus.
In above-mentioned imazethapyr water dispersible granules, wetting agent, dispersant, disintegrant, binding agent, stabilizing agent, carrier are referred to as auxiliary agent, and auxiliary agent and Imazethapyr effective ingredient sum are 100wt%.
In above-mentioned imazethapyr water dispersible granules, described wetting agent is selected from sodium alkyl sulfate, alkylphenol polyoxyethylene sulphate, pulls open powder, one or more in lauric acid sulphate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, dodecyl benzene sulfonate.
In above-mentioned imazethapyr water dispersible granules, described dispersant is selected from one or more in polycarboxylate sodium's water reducer, lignosulfonates, alkyl naphthalene sulfonic acid sodium salt, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt, alkylphenol-polyethenoxy polyethenoxy ether, ethylene oxide-propylene oxide block copolymer, maleic acid-acrylic acid copolymer.
In above-mentioned imazethapyr water dispersible granules, described disintegrant is selected from one or more in bentonite, sodium carboxymethylcellulose, ammonium sulfate, anhydrous sodium sulfate, sodium chloride, urea, sodium alginate.
In above-mentioned imazethapyr water dispersible granules, described binding agent is selected from one or more in polyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, glucose, soluble starch, dextrin.
In above-mentioned imazethapyr water dispersible granules, described stabilizing agent is selected from one or more in ethylenediamine tetra-acetic acid, disodium ethylene diamine tetraacetate, tetrasodium ethylenediamine tetraacetate, sodium phosphate trimer.
In above-mentioned imazethapyr water dispersible granules, described carrier is selected from potter's clay, kaolin, diatomite, bentonite, white carbon, corn starch, talcum powder one or more.
In above-mentioned imazethapyr water dispersible granules, Imazethapyr preferably accounts for 80% of gross mass.
In above-mentioned imazethapyr water dispersible granules, wetting agent is preferably naphthalene sulfonic acid-formaldehyde condensation product sodium salt, dispersant is preferably alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt, disintegrant is preferably sodium carboxymethylcellulose, binding agent is preferably polyvinyl alcohol, stabilizing agent is preferably disodium ethylene diamine tetraacetate, and carrier is preferably talcum powder.
Imazethapyr is a kind of weed killer herbicide of super-high-efficient, and the present invention, through constantly exploring, selects suitable auxiliary agent and proportioning thereof, has finally obtained the dosage form of water dispersible granule of Imazethapyr, and this formulation is dispersed and to enter water-destructible property all fine.Inventor carries out choice and optimization through a large amount of experiments to the consumption of each composition and auxiliary agent again, has obtained the formula of dispersed and the better water dispersible granules of disintegrative.
This optimization formula is: Imazethapyr 80wt%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 1-12wt%, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt 1-12wt%, sodium carboxymethylcellulose 1-25wt%, polyvinyl alcohol 1-10wt%, disodium ethylene diamine tetraacetate 1-5wt%, talcum powder surplus.The water dispersible granules making according to this optimization formula is high without dust, formulation content, it is cost-saving to be more conducive to, in formula to the special selection of auxiliary agent make product dispersiveness, enter water-destructible property, storage the aspects such as stability better.
The present invention also provides the preparation method of imazethapyr water dispersible granules, be specially: Imazethapyr, wetting agent, disintegrant, binding agent, stabilizing agent and carrier are mixed, Ultramicro-powder is broken into 500-800 object fine powder, then fine powder is added to water and mediate granulation, gained particle is drying to obtain at 40-80 ℃.
Compared with prior art, the water dispersible granules tool of imazethapyr water dispersible granules of the present invention and optimization formula has the following advantages:
1. water dispersible granules of the present invention can be selected the content of Imazethapyr effective ingredient in a big way, especially can make Imazethapyr content up to 90%, is conducive to cost-saving.
2. herbicide formulations of the present invention is environmentally friendly, to people and animals and other beneficial organism safety non-pollution and difficult generation poisoning.
3. herbicide formulations of the present invention is without dust, and particle disintegration rate is fast and there is no a bales stained.
4. herbicide formulations preparing process of the present invention is simple, easy to use, and cost is low, is suitable for spread and uses.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but do not limit the present invention.
embodiment 1
Each constituent content (by weight) is Imazethapyr 10%, wetting agent pulls open powder 10%, dispersant alkyl naphthalene sulfonic acid sodium salt formaldehyde condensation products 7%, dispersant maleic acid-acrylic acid copolymer 5%, disintegrant ammonium sulfate 25%, binding agent glucose 10%, stabilizing agent disodium ethylene diamine tetraacetate 5%, carrier kaolin 18%, carrier white carbon is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 700 order fine powders, then through granulation, under 80 ℃ of conditions, dry and can obtain 10% imazethapyr water dispersible granules.
embodiment 2
Each constituent content (by weight) is Imazethapyr 25%, wetting agent lauric acid sodium sulphate 12%, dispersant sodium lignin sulfonate 8%, disintegrant anhydrous sodium sulfate 20%, binding agent soluble starch 2.5%, stabilizing agent tetrasodium ethylenediamine tetraacetate 1.5%, stabilizing agent sodium phosphate trimer 2.5%, carrier diatomite is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 600 order fine powders, then through granulation, under 70 ℃ of conditions, dry and can obtain 25% imazethapyr water dispersible granules.
embodiment 3
Each constituent content (by weight) is Imazethapyr 35%, wetting agent lauryl sodium sulfate 4%, neopelex 4%, dispersant maleic acid-acrylic acid copolymer 10%, disintegrant sodium chloride 7%, disintegrant anhydrous sodium sulfate 8%, binding agent polyvinylpyrrolidone 5%, stabilizing agent ethylenediamine tetra-acetic acid 2%, carrier corn starch is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 750 order fine powders, then through granulation, under 62 ℃ of conditions, dry and can obtain 35% imazethapyr water dispersible granules.
embodiment 4
Each constituent content (by weight) is Imazethapyr 50%, wetting agent calcium dodecyl benzene sulfonate 6%, dispersant ethylene oxide-propylene oxide block copolymer 4%, disintegrant sodium alginate 15%, binding agent soluble starch 7%, binding agent polyethylene glycol 1%, stabilizing agent ethylenediamine tetra-acetic acid 2%, carrier bentonite is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 550 order fine powders, then through granulation, under 54 ℃ of conditions, dry and can obtain 50% imazethapyr water dispersible granules.
embodiment 5
Each constituent content (by weight) is Imazethapyr 60%, wetting agent naphthalene sulfonic acid-formaldehyde condensation product sodium salt 4%, dispersant alkylphenol-polyethenoxy polyethenoxy ether 6.5%, disintegrant ammonium sulfate 10%, binding agent dextrin 4%, stabilizing agent disodium ethylene diamine tetraacetate 5%, carrier kaolin 10%, carrier potter's clay is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 500 order fine powders, then through granulation, under 65 ℃ of conditions, dry and can obtain 60% imazethapyr water dispersible granules.
embodiment 6
Each constituent content (by weight) is Imazethapyr 70%, wetting agent alkyl phenol polyethenoxy ether sodium sulfate 4%, dispersant alkyl naphthalene sulfonic acid sodium salt 5%, dispersant maleic acid acrylic copolymer 1%, disintegrant urea 10%, binding agent glucose 3%, binding agent dextrin 3%, stabilizing agent sodium phosphate trimer 1%, carrier talcum powder is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 800 order fine powders, then through granulation, under 60 ℃ of conditions, dry and can obtain 70% imazethapyr water dispersible granules.
embodiment 7
Each constituent content (by weight) is Imazethapyr 80%, wetting agent naphthalene sulfonic acid-formaldehyde condensation product sodium salt 3%, dispersant alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt 4%, disintegrating agent carboxymethyl base sodium cellulosate 5%, binding agent polyvinyl alcohol 1%, stabilizing agent disodium ethylene diamine tetraacetate 3%, carrier talcum powder is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 650 order fine powders, then through granulation, under 40 ℃ of conditions, dry and can obtain 80% imazethapyr water dispersible granules.This imazethapyr water dispersible granules stability dispersed, that enter water-destructible property, storage is best.
embodiment 8
Each constituent content (by weight) is Imazethapyr 90%, wetting agent naphthalene sulfonic acid-formaldehyde condensation product sodium salt 1%, dispersant alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt 1%, disintegrating agent carboxymethyl base sodium cellulosate 1%, binding agent polyvinyl alcohol 2.5%, stabilizing agent disodium ethylene diamine tetraacetate 3%, carrier talcum powder is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 600 order fine powders, then through granulation, under 40 ℃ of conditions, dry and can obtain 90% imazethapyr water dispersible granules.This imazethapyr water dispersible granules stability dispersed, that enter water-destructible property, storage is best.
embodiment 9
Each constituent content (by weight) is Imazethapyr 50%, wetting agent calcium dodecyl benzene sulfonate 6%, dispersant lignosulfonates 2%, dispersant alkyl naphthalene sulfonic acid sodium salt 2%, disintegrant sodium alginate 10%, disintegrating agent carboxymethyl base sodium cellulosate 5%, binding agent soluble starch 7%, binding agent polyethylene glycol 1%, stabilizing agent ethylenediamine tetra-acetic acid 2%, carrier bentonite is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 550 order fine powders, then through granulation, under 54 ℃ of conditions, dry and can obtain 50% imazethapyr water dispersible granules.
embodiment 10
Each constituent content (by weight) is Imazethapyr 60%, wetting agent naphthalene sulfonic acid-formaldehyde condensation product sodium salt 4%, dispersant alkylphenol-polyethenoxy polyethenoxy ether 6.5%, disintegrant ammonium sulfate 10%, binding agent glucose 2%, binding agent soluble starch 1%, binding agent dextrin 4%, stabilizing agent ethylenediamine tetra-acetic acid 3%, stabilizing agent sodium phosphate trimer 2%, carrier white carbon 1%, carrier bentonite 2%, carrier diatomite is mended to 100%.Each component is mixed by airslide disintegrating mill and is ground into 500 order fine powders, then through granulation, under 65 ℃ of conditions, dry and can obtain 60% imazethapyr water dispersible granules.
Claims (8)
1. an imazethapyr water dispersible granules, it is characterized in that being grouped into by the one-tenth of following percetage by weight: Imazethapyr 80%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 1-12%, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt 1-12%, sodium carboxymethylcellulose 1-25%, polyvinyl alcohol 1-10%, disodium ethylene diamine tetraacetate 1-5%, talcum powder surplus.
2. the preparation method of an imazethapyr water dispersible granules claimed in claim 1, it is characterized in that: Imazethapyr, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt, sodium carboxymethylcellulose, polyvinyl alcohol, disodium ethylene diamine tetraacetate and talcum powder are mixed, Ultramicro-powder is broken into 500-800 object fine powder, then fine powder is added to water and mediate granulation, gained particle is drying to obtain at 40-80 ℃.
3. an imazethapyr water dispersible granules, it is characterized in that each constituent content is by weight: Imazethapyr 70%, wetting agent alkyl phenol polyethenoxy ether sodium sulfate 4%, dispersant alkyl naphthalene sulfonic acid sodium salt 5%, dispersant maleic acid acrylic copolymer 1%, disintegrant urea 10%, binding agent glucose 3%, binding agent dextrin 3%, stabilizing agent sodium phosphate trimer 1%, carrier talcum powder is mended to 100%.
4. the preparation method of an imazethapyr water dispersible granules claimed in claim 3, it is characterized in that: each component is mixed by airslide disintegrating mill and is ground into 800 order fine powders, then through granulation, under 60 ℃ of conditions, dry and can obtain 70% imazethapyr water dispersible granules.
5. an imazethapyr water dispersible granules, it is characterized in that each constituent content is by weight: Imazethapyr 80%, wetting agent naphthalene sulfonic acid-formaldehyde condensation product sodium salt 3%, dispersant alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt 4%, disintegrating agent carboxymethyl base sodium cellulosate 5%, binding agent polyvinyl alcohol 1%, stabilizing agent disodium ethylene diamine tetraacetate 3%, carrier talcum powder is mended to 100%.
6. the preparation method of an imazethapyr water dispersible granules claimed in claim 5, it is characterized in that: each component is mixed by airslide disintegrating mill and is ground into 650 order fine powders, then through granulation, under 40 ℃ of conditions, dry and can obtain 80% imazethapyr water dispersible granules.
7. an imazethapyr water dispersible granules, it is characterized in that each constituent content is by weight: Imazethapyr 90%, wetting agent naphthalene sulfonic acid-formaldehyde condensation product sodium salt 1%, dispersant alkyl naphthalene sulfonic acid formaldehyde condensation products sodium salt 1%, disintegrating agent carboxymethyl base sodium cellulosate 1%, binding agent polyvinyl alcohol 2.5%, stabilizing agent disodium ethylene diamine tetraacetate 3%, carrier talcum powder is mended to 100%.
8. the preparation method of an imazethapyr water dispersible granules claimed in claim 7, it is characterized in that: each component is mixed by airslide disintegrating mill and is ground into 600 order fine powders, then through granulation, under 40 ℃ of conditions, dry and can obtain 90% imazethapyr water dispersible granules.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103651370A (en) * | 2012-09-20 | 2014-03-26 | 江苏长青农化股份有限公司 | 5% imazethapyr water agent |
| CN103651531A (en) * | 2013-12-10 | 2014-03-26 | 济南凯因生物科技有限公司 | Water dispersible granules containing cartap and application of water dispersible granules |
| CN105432615B (en) * | 2015-12-25 | 2018-01-30 | 山东潍坊润丰化工股份有限公司 | A kind of imazamox water dispersible granules and preparation method thereof |
| CN105410015B (en) * | 2015-12-25 | 2018-08-21 | 山东潍坊润丰化工股份有限公司 | A kind of chlopyrifos water dispersible granules and preparation method thereof |
| CN108235986A (en) * | 2016-12-23 | 2018-07-03 | 山东润博生物科技有限公司 | A kind of Herbicidal combinations and its preparation and application |
| CN110326619A (en) * | 2019-07-08 | 2019-10-15 | 西华大学 | One kind Herbicidal combinations containing imazethapyr and application |
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|---|---|---|---|---|
| CN1471823A (en) * | 2002-08-02 | 2004-02-04 | 王现全 | Herbicidals of imidazoleethyniacin |
| CN1547910A (en) * | 2003-05-12 | 2004-11-24 | 公主岭市明华农药有限公司 | Herbicide composition of fomesafen and imazethapyr |
| CN101406190A (en) * | 2008-10-24 | 2009-04-15 | 西北农林科技大学 | Application of compound (RS) -5-ethyl-2- (4-isopropyl-4-methyl-5-oxo-2-imidazoline-2-yl) nicotinic acid and ammonium salt thereof as phytochemical hybridization agent |
| US20110306502A1 (en) * | 2009-02-20 | 2011-12-15 | Deepak Pranjivandas Shah | Novel Water Dispersible Granular Composition |
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- 2012-01-17 CN CN201210013818.8A patent/CN102550565B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1471823A (en) * | 2002-08-02 | 2004-02-04 | 王现全 | Herbicidals of imidazoleethyniacin |
| CN1547910A (en) * | 2003-05-12 | 2004-11-24 | 公主岭市明华农药有限公司 | Herbicide composition of fomesafen and imazethapyr |
| CN101406190A (en) * | 2008-10-24 | 2009-04-15 | 西北农林科技大学 | Application of compound (RS) -5-ethyl-2- (4-isopropyl-4-methyl-5-oxo-2-imidazoline-2-yl) nicotinic acid and ammonium salt thereof as phytochemical hybridization agent |
| US20110306502A1 (en) * | 2009-02-20 | 2011-12-15 | Deepak Pranjivandas Shah | Novel Water Dispersible Granular Composition |
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