CN104322486A - Oxadiargyl suspension concentrate and preparation method and applications of oxadiargyl suspension concentrate - Google Patents
Oxadiargyl suspension concentrate and preparation method and applications of oxadiargyl suspension concentrate Download PDFInfo
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- CN104322486A CN104322486A CN201410690558.7A CN201410690558A CN104322486A CN 104322486 A CN104322486 A CN 104322486A CN 201410690558 A CN201410690558 A CN 201410690558A CN 104322486 A CN104322486 A CN 104322486A
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- oxadiargyl
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Abstract
The invention discloses an oxadiargyl suspension concentrate and a preparation method and applications of the oxadiargyl suspension concentrate. The oxadiargyl suspension concentrate comprises the following components: 5-50% of oxadiargyl, 2-20% of a surfactant, 0-6% of a co-suspension concentrate, 0-1% of a thickening agent, 0-1% of a defoaming agent, 0-1% of a preservative, 0.5-5% of an antifreezing agent, and the balance of water. Because the oxadiargyl belonging to a soil-treatment pesticide is more fittingly prepared into a suspension concentrate, and has strong affinity with the soil, the pesticide effect is increased, and the field application amount is reduced, and thus the production and application costs are reduced, and the pesticide residues and environmental pollution are reduced; and the oxadiargyl suspension concentrate can be produced by using a conventional method, is simple in production method, and has an extremely high promotion value.
Description
Technical field
The present invention relates to a kind of farm weeding preparation, in particular a kind of oxadiargyl aqueous suspension agent, preparation method and application thereof.
Background technology
Oxadiargyl (also claiming rice to think to reach) is a kind of diazole ketone bud phase selective herbicide, its chemistry is by name: 5-tertiary butyl-3-[2, the chloro-5-of 4-bis-(Propargyl oxygen base) phenyl]-1,3,4-oxadiazole-2 (3H)-one, structural formula is as follows:
Oxadiargyl is weeds proporphyrinogen oxidase inhibitor, is mainly used in paddy rice, potato, sunflower, vegetables, beet, fruit tree etc., to soybean and corn safety.Its selection type is based on the metabolism of medicament in plant.
Oxadiargyl is a kind of contact killing type weed killer herbicide, mainly absorbs in the contact of weeds germination and emergence and works.Oxadiargyl applies in paddy field water either, and first contact with the weeds seedling of being unearthed and absorbed, all the other major parts fall in upper soll layer, and by upper soll layer particulate absorbent, form a medicine film layer.When the weeds bud sprouted is through this medicine film layer, contact with medicament, growth is suppressed, and young tender cellular tissure is rotted rapidly, finally causes young shoot, death of seedling.
The common formulation of oxadiargyl has 80% wettable mealiness pulvis, 20% oil-suspending agent, but wettable mealiness pulvis produces a large amount of dust in process pollutes large to surrounding enviroment, and oil-suspending agent is slower in degraded in soil.
Through retrieval, not yet find the formulation of oxadiargyl aqueous suspension agent at present.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of oxadiargyl aqueous suspension agent, preparation method and application thereof, open up the novel form of oxadiargyl application.
The present invention is achieved by the following technical solutions: the present invention by weight, comprise following component: oxadiargyl 5 ~ 50%, surfactant 2 ~ 20%, suspension aid 0 ~ 6%, thickener 0 ~ 1%, defoamer 0 ~ 1%, preservative 0 ~ 1%, antifreezing agent 0.5 ~ 5%, water complements to 100%.
As one of preferred embodiment of the present invention, described surfactant be selected from alkylbenzenesulfonate, phenethyl phenol polyethenoxy ether sulphonate, lignosulfonates, polycarboxylate, phenethyl phenol polyoxyethylene phosphonate, thermally coupled distillation columns one or more.
As one of preferred embodiment of the present invention, described suspension aid be selected from white carbon, bentonite, Magnesiumaluminumsilicate, kaolin one or more.
As one of preferred embodiment of the present invention, described thickener be selected from xanthans, carboxymethyl cellulose, polyacrylamide, polyvinyl alcohol one or more.
As one of preferred embodiment of the present invention, described defoamer is selected from C
8-C
10one or more in fatty alcohol, organosilicon ketone, ester-ether type compound.
As one of preferred embodiment of the present invention, described preservative be selected from formaldehyde, benzoic acid, Kathon CG, methenamine one or more.
As one of preferred embodiment of the present invention, described antifreezing agent be selected from ethylene glycol, urea, propane diols, glycerine one or more.
A preparation method for oxadiargyl aqueous suspension agent, comprises the following steps:
(1) first shear in oxadiargyl, suspension aid, surfactant, preservative, antifreezing agent and water input reactor;
(2) the material grinding will sheared again, grinding limit, limit adds and has weighed defoamer;
(3) finally add load weighted thickener, continue to shear.
A kind of oxadiargyl aqueous suspension agent is as the application of farmland herbicide.
The technical indicator of the aqueous suspension agent that the present invention obtains is as follows:
Oxadiargyl content, % (m/m) 5 ~ 50%
PH value scope 5.0 ~ 7.5
Screen analysis (by 75 μm of testing sieves), % >=95.0
Suspensibility, % >=90.0
Pourability topples over rear residue, %≤5.0
Residue after washing, %≤0.5
Lasting foam number, mL≤25.0
Heat storage stability (54 ± 2 DEG C, 14d) resolution ratio, %≤5.0
The present invention has the following advantages compared to existing technology: make aqueous suspension agent be more suitable for because oxadiargyl belongs to soil treatment type agricultural chemicals, and strong with the affinity of soil, drug effect improves, and field rate declines, reduce production and use cost, reduce residue of pesticide and environmental pollution; Adopt conventional method to produce, and production method is simple, promotional value is very high.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
The oxadiargyl aqueous suspension agent of the present embodiment by weight, comprises following component: oxadiargyl 10%; Surfactant is phenethyl phenol polyethenoxy ether sulphonate, content 10%; Suspension aid is kaolin, content 2%; Thickener is polyacrylamide, content 1%; Defoamer is ester-ether type compound, content 0.5%; Preservative is Kathon CG, content 0.5%; Antifreezing agent is propane diols, content 3%, and water complements to 100%, by obtaining oxadiargyl aqueous suspension agent after high speed shear, sand milling, modulation.
Embodiment 2
The oxadiargyl aqueous suspension agent of the present embodiment by weight, comprises following component: oxadiargyl 25%; Surfactant is alkylbenzenesulfonate, content 12%; Suspension aid is white carbon, bentonite, content 5%; Thickener is carboxymethyl cellulose, content 1%; Defoamer is organosilicon ketone, content 0.5%; Preservative is benzoic acid, content 0.5%; Antifreezing agent is urea, content 3%, and water complements to 100%, by obtaining oxadiargyl aqueous suspension agent after high speed shear, sand milling, modulation.
Embodiment 3
The oxadiargyl aqueous suspension agent of the present embodiment by weight, comprises following component: oxadiargyl 30%; Surfactant is phenethyl phenol polyoxyethylene phosphonate, thermally coupled distillation columns, content 15%; Suspension aid is bentonite, content 3%; Thickener is xanthans, content 1%; Defoamer is C
8-C
10fatty alcohol, content 0.5%; Preservative is formaldehyde, content 0.5%; Antifreezing agent is ethylene glycol, content 3%, and water complements to 100%, by obtaining oxadiargyl aqueous suspension agent after high speed shear, sand milling, modulation.
Embodiment 4
The oxadiargyl aqueous suspension agent of the present embodiment by weight, comprises following component: oxadiargyl 40%; Surfactant is polycarboxylate, content 15%; Suspension aid is Magnesiumaluminumsilicate, content 5%; Thickener is carboxymethyl cellulose, content 0.5%; Defoamer is organosilicon ketone, content 0.5%; Preservative is benzoic acid, content 1%; Antifreezing agent is urea, content 5%, and water complements to 100%, by obtaining oxadiargyl aqueous suspension agent after high speed shear, sand milling, modulation.
Embodiment 5
The oxadiargyl aqueous suspension agent of the present embodiment by weight, comprises following component: oxadiargyl 50%; Surfactant is thermally coupled distillation columns, content 8%; Suspension aid is white carbon and bentonite, content 4%; Thickener is polyacrylamide, content 1%; Defoamer is C
8-C
10fatty alcohol, content 0.5%; Preservative is Kathon CG, content 0.5%; Antifreezing agent is glycerine, content 2%, and water complements to 100%, by obtaining oxadiargyl aqueous suspension agent after high speed shear, sand milling, modulation.
In order to beneficial effect of the present invention is better described, carry out field control effectiveness test for paddy field weed, result of the test is as shown in the table.The oxadiargyl aqueous suspension agent that embodiment 1 ~ 5 is obtained, comparative example 1:80% oxadiargyl water dispersible granules.
Test in 3 ~ 7 days paddy field water either before rice transplanting whole drag for flat heavy slurry after mu metering pour into after secondary dilution in sprayer, add water 10 kilograms, remove fog-spray nozzle and get rid of spray, during rice transplanting, keep the water layer of in field 3 ~ 5 centimetres, within after rice transplanting 2 ~ 3 days, stay filling as far as possible and do not arrange.Test adopts zigzag sampling method, fixed 4 points in each community, and the quantity of 0.25 square metre often some investigation weeds, calculates strain preventive effect, and carries out fresh weight investigation when last investigation, and calculates fresh weight preventive effect.Investigation is respectively carried out once after 25 days and medicine after medicine for 45 days.The results are shown in Table 1, table 2, table 3.
Within after table 1 medicine 25 days, prevent and kill off rice transplanting field weed strain preventive effect
Within after table 2 medicine 45 days, prevent and kill off rice transplanting field weed strain preventive effect
Within after table 3 medicine 45 days, prevent and kill off rice transplanting field weed fresh weight preventive effect
Can find out from table 1, table 2, table 3 result of the test, the recommended dose of embodiment 1 ~ 5 is 20ml/ mu ~ 25ml/ mu (active ingredient 75 grams/ha ~ 90 grams/ha), active ingredient more than 75 grams is used, to the strain preventive effect of barnyard grass, rhizoma alismatis, arrowhead, Monochoria vaginalis and fresh weight preventive effect all higher than comparative example 1 in per hectare.Duration of test rice striking root and growth normal, to paddy growth safety in trial stretch.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an oxadiargyl aqueous suspension agent, is characterized in that, by weight, comprises following component: oxadiargyl 5 ~ 50%, surfactant 2 ~ 20%, suspension aid 0 ~ 6%, thickener 0 ~ 1%, defoamer 0 ~ 1%, preservative 0 ~ 1%, antifreezing agent 0.5 ~ 5%, water complements to 100%.
2. a kind of oxadiargyl aqueous suspension agent according to claim 1, it is characterized in that, described surfactant be selected from alkylbenzenesulfonate, phenethyl phenol polyethenoxy ether sulphonate, lignosulfonates, polycarboxylate, phenethyl phenol polyoxyethylene phosphonate, thermally coupled distillation columns one or more.
3. a kind of oxadiargyl aqueous suspension agent according to claim 1, is characterized in that, described suspension aid be selected from white carbon, bentonite, Magnesiumaluminumsilicate, kaolin one or more.
4. a kind of oxadiargyl aqueous suspension agent according to claim 1, is characterized in that, described thickener be selected from xanthans, carboxymethyl cellulose, polyacrylamide, polyvinyl alcohol one or more.
5. a kind of oxadiargyl aqueous suspension agent according to claim 1, it is characterized in that, described defoamer is selected from C
8-C
10one or more in fatty alcohol, organosilicon ketone, ester-ether type compound.
6. a kind of oxadiargyl aqueous suspension agent according to claim 1, is characterized in that, described preservative be selected from formaldehyde, benzoic acid, Kathon CG, methenamine one or more.
7. a kind of oxadiargyl aqueous suspension agent according to claim 1, is characterized in that, described antifreezing agent be selected from ethylene glycol, urea, propane diols, glycerine one or more.
8. the preparation method of a kind of oxadiargyl aqueous suspension agent as described in any one of claim 1 ~ 7, is characterized in that, comprise the following steps:
(1) first shear in oxadiargyl, suspension aid, surfactant, preservative, antifreezing agent and water input reactor;
(2) the material grinding will sheared again, grinding limit, limit adds and has weighed defoamer;
(3) finally add load weighted thickener, continue to shear.
9. a kind of oxadiargyl aqueous suspension agent as described in any one of claim 1 ~ 7 is as the application of farmland herbicide.
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| CN201410690558.7A CN104322486A (en) | 2014-11-25 | 2014-11-25 | Oxadiargyl suspension concentrate and preparation method and applications of oxadiargyl suspension concentrate |
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| CN201410690558.7A CN104322486A (en) | 2014-11-25 | 2014-11-25 | Oxadiargyl suspension concentrate and preparation method and applications of oxadiargyl suspension concentrate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105145591A (en) * | 2015-10-30 | 2015-12-16 | 安徽科立华化工有限公司 | Compound suspension concentrate containing pretilachlor, clomazone and oxadiargyl and preparation method and application of compound suspension concentrate |
| CN113575601A (en) * | 2021-08-10 | 2021-11-02 | 安徽广信农化股份有限公司 | Oxanone herbicide and preparation process thereof |
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| EP1023832A1 (en) * | 1999-01-29 | 2000-08-02 | American Cyanamid Company | Aqueous suspension concentrate |
| CN101316511A (en) * | 2005-11-25 | 2008-12-03 | 拜尔作物科学股份公司 | Aqueous suspension-concentrates of oxadiazole herbicides |
| CN102258038A (en) * | 2011-09-06 | 2011-11-30 | 合肥星宇化学有限责任公司 | Weeding composition containing oxadiargyl and dispyribac-sodium |
| CN102461519A (en) * | 2010-11-19 | 2012-05-23 | 南京华洲药业有限公司 | Hybrid weeding composite containing Bispyribac-sodium and oxadiargyl |
| CN103636614A (en) * | 2013-12-17 | 2014-03-19 | 济南科赛基农化工有限公司 | Paddy field synergistic weeding composition containing oxadiargyl and mesotrione |
| CN104106577A (en) * | 2014-06-12 | 2014-10-22 | 广东中迅农科股份有限公司 | A weeding composition containing metazachlor and oxadiargyl |
-
2014
- 2014-11-25 CN CN201410690558.7A patent/CN104322486A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1023832A1 (en) * | 1999-01-29 | 2000-08-02 | American Cyanamid Company | Aqueous suspension concentrate |
| CN101316511A (en) * | 2005-11-25 | 2008-12-03 | 拜尔作物科学股份公司 | Aqueous suspension-concentrates of oxadiazole herbicides |
| CN102461519A (en) * | 2010-11-19 | 2012-05-23 | 南京华洲药业有限公司 | Hybrid weeding composite containing Bispyribac-sodium and oxadiargyl |
| CN102258038A (en) * | 2011-09-06 | 2011-11-30 | 合肥星宇化学有限责任公司 | Weeding composition containing oxadiargyl and dispyribac-sodium |
| CN103636614A (en) * | 2013-12-17 | 2014-03-19 | 济南科赛基农化工有限公司 | Paddy field synergistic weeding composition containing oxadiargyl and mesotrione |
| CN104106577A (en) * | 2014-06-12 | 2014-10-22 | 广东中迅农科股份有限公司 | A weeding composition containing metazachlor and oxadiargyl |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105145591A (en) * | 2015-10-30 | 2015-12-16 | 安徽科立华化工有限公司 | Compound suspension concentrate containing pretilachlor, clomazone and oxadiargyl and preparation method and application of compound suspension concentrate |
| CN113575601A (en) * | 2021-08-10 | 2021-11-02 | 安徽广信农化股份有限公司 | Oxanone herbicide and preparation process thereof |
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Application publication date: 20150204 |