CN101554160A - Tribenuron-methyl water dispersible granule and method for preparing same - Google Patents
Tribenuron-methyl water dispersible granule and method for preparing same Download PDFInfo
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- CN101554160A CN101554160A CNA2008101038212A CN200810103821A CN101554160A CN 101554160 A CN101554160 A CN 101554160A CN A2008101038212 A CNA2008101038212 A CN A2008101038212A CN 200810103821 A CN200810103821 A CN 200810103821A CN 101554160 A CN101554160 A CN 101554160A
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- tribenuron
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Abstract
The invention relates to a tribenuron-methyl water dispersible granule and a method for preparing the same, belonging to the field of the agrochemical herbicide. The tribenuron-methyl water dispersible granule is regular or irregular in shape and contains 40-80 weight percent of tribenuron-methyl. The method for preparing the tribenuron-methyl water dispersible granule comprises the following steps: a certain proportion of wetting agent, dispersing agent, disintegrating agent, binding agent and carrier are added to the raw tribenuron-methyl, mixed with the tribenuron-methyl and stirred uniformly to the tribenuron-methyl; the mixture is pulverized to obtain mother powder; a certain proportion of deionized water is added to the mother powder and mixed with the same; the mother powder mixed by the deionized water is granulated; and the tribenuron-methyl water dispersible granule is prepared after being dried and screened. The tribenuron-methyl water dispersible granule overcomes the defect of the wettable powder and reduces the use cost of the peasant and the pollution to the environment when being processed and used. With agents of different components being added to the tribenuron-methyl water dispersible granule, the tribenuron-methyl water dispersible granule has the characteristics of high content of active components, rapid disintegrating speed, good dispersing property, stable thermal storage performance, high fungicidal effectiveness and safety during use, and the like.
Description
Technical field
The present invention relates to a kind of disinfectant use in agriculture, particularly a kind of tribenuron-methyl water dispersible granule and preparation method thereof.
Background technology
Tribenuron-methyl (Tribenuron-methyl), chemical name: 2-[4-methoxyl group-6-methyl isophthalic acid, 3,5-triazine-2-base (methyl) amino methyl acylamino-sulfonyl] benzoic acid or basic methyl esters.Stability: stablize at 45 ℃, under field condition, do not have tangible photolysis; When 45 ℃ of hydrolysis, pH8-10 is down stable, but in pH＜7 or pH＞decompose rapidly down; In the soil DT501-7 days.
The mode of action: belonging to selectivity inner sucting conduction type sulfonylurea herbicide, is the side chain amino acid biosynthesis inhibitor.Broad leaved weed is transferred in the body after blade face and root absorption, suppresses the acetolactic acid enzymatic synthesis, can not synthesize valine and isoleucine, stops cell division, suppresses the bud tip and root growth, and to the broad leaved weed sensitivity, weeds are dead within 14 days.The dead speed of weeds was slow when temperature was low.Wheat crops has resistance to this product, and can transform effective ingredient rapidly is innocuous substance.Under positive usual amounts to crop safety.Applicable crops: wheat controlling object: broad leaved weed such as chickweed, corn gromwell, common vetch, knotweed, weasel hemp nettle, bitter cress, Stellaria alsine Grim., Hairy Bittercress, Amaranthus retroflexus etc.Poor slightly to the clearvers preventive effect.
The former medicine of tribenuron-methyl in use is made generally in the wetting powder use at present.Because wetting powder dust pollution in processing and use is serious, and environment and health are had very big harm, and shortcomings such as effective rate of utilization is low, lasting period weak point, therefore be the formulation that is on the verge of to eliminate that falls behind relatively in the present formulations of pesticide.
Summary of the invention
The purpose of this invention is to provide a kind of tribenuron-methyl water dispersible granule and preparation method thereof.
Another object of the present invention is exactly in order to overcome the environmental pollution that exists in the prior art, to be detrimental to health and shortcoming such as use cost height and a kind of high-load of developing environment-friendly type, availability height, and tribenuron-methyl water dispersible granule easy to use.Water dispersible granules is to grow up on the basis of wetting powder and suspending agent, this formulation has overcome the shortcoming of suspending agent and wetting powder, had both the low advantage of environmental protection and use cost, in processing and use, having reduced the pollution of environment and reduced peasant's use cost, is a main trend of present pesticidal preparations formulation development.
The objective of the invention is to realize by technical scheme once, effectively becoming of tribenuron-methyl water dispersible granule is tribenuron-methyl, make rule or irregular particle by the former medicine of tribenuron-methyl and wetting agent, dispersant, disintegrant, carrier, binding agent hybrid process, the content of tribenuron-methyl is 40%-80% (percentage by weight).
Wherein: wetting agent can be one or more in neopelex, calcium dodecyl benzene sulfonate, alkyl phosphoric acid sodium, alkylphenol-polyethenoxy level sodium sulphate, lauryl sodium sulfate, the alkylnaphthalene sulfonate.
Wherein: dispersant can be one or more in alkylphenol polyoxyethylene formaldehyde condensation products sodium sulphate, sodium lignin sulfonate, calcium lignosulfonate, Fluhyzon formaldehyde condensation products, the polycarboxylate.
Wherein: disintegrant can be one or more in starch, sodium sulphate, sulfuric acid amine, white carbon, the bentonite.
Wherein: carrier can be one or more in kaolin, precipitated calcium carbonate, diatomite, attapulgite, the sepiolite.
Wherein: binding agent can be one or more in polyethylene glycol, polyvinyl alcohol, carboxymethyl cellulose, the denaturated sodium polyacrylate.
A kind of preparation method who contains tribenuron-methyl water dispersible granule, it is characterized in that, the former medicine of tribenuron-methyl is added a certain proportion of wetting agent, dispersant, disintegrant, binding agent, carrier mixing, after stirring, obtain female powder through pulverizing, female powder is mixed adding a certain proportion of deionized water, and granulation is then dried, sieving obtains tribenuron-methyl water dispersible granule.
The present invention has following advantage:
1. after making water dispersible granules, it is good to have a dispersed suspension, the active constituent content height, and physical and chemical performance is stable, can widen the scope of application of medicament, prolong the lasting period, improve drug effect, and the saving organic solvent does not cause the pollution to environment, has the advantage of wetting powder and suspending agent concurrently;
2. owing to do not contain organic solvent, not only alleviated destruction, and reduced production cost ecotope;
3. can greatly alleviate toxic action to user;
4. be convenient to the packing storing;
The present invention makes the present invention have the active component content height owing to add the auxiliary agent of heterogeneity, and environmental pollution is little, and disintegration rate is fast, and dispersive property reaches heat storage steady performance well, and in use herbicidal effect is good, and is safe.
Embodiment
Embodiment 1
40% tribenuron-methyl water dispersible granule.Take by weighing the former medicine 40% of tribenuron-methyl, wetting agent alkylnaphthalene sulfonate 3.0%, dispersant sodium lignin sulfonate 6%, disintegrant sulfuric acid amine 10%, binding agent polyethylene glycol 2%, it is pressed conventional method mixes, after stirring, obtain female powder, granulation then through the airslide disintegrating mill pulverizing, oven dry, sieving obtains about 40% tribenuron-methyl water dispersible granule.Through the check active constituent content is 40.3%, moisture 1.9%, and screening (by the 75um sieve) 98%, suspensibility 92%, lasting foaming characteristic (1min) 10mL, wetability≤1min, the acceleration heat storage stability is qualified.
Embodiment 2
50% tribenuron-methyl water dispersible granule.Take by weighing the former medicine 50% of tribenuron-methyl, wetting agent neopelex 3.0%, dispersant sodium lignin sulfonate 7%, disintegrant sodium sulphate 5%, binding agent carboxymethyl cellulose 1%, it is pressed conventional method mixes, after stirring, obtain female powder, granulation then through the airslide disintegrating mill pulverizing, oven dry, sieving obtains about 50% tribenuron-methyl water dispersible granule.Through the check active constituent content is 50.5%, moisture 2.0%, and screening (by the 75um sieve) 97.9%, suspensibility 90%, lasting foaming characteristic (1min) 8mL, wetability≤1min, the acceleration heat storage stability is qualified.
Embodiment 3
60% tribenuron-methyl water dispersible granule.Take by weighing the former medicine 60% of tribenuron-methyl, wetting agent alkyl phosphoric acid sodium 3.0%, dispersant alkylphenol polyoxyethylene formaldehyde condensation products sodium sulphate 6%, disintegrant sodium sulphate 5%, binding agent carboxymethyl cellulose 1%, it is pressed conventional method mixes, after stirring, obtain female powder, granulation then through the airslide disintegrating mill pulverizing, oven dry, sieving obtains about 60% tribenuron-methyl water dispersible granule.Through the check active constituent content is 60.1%, moisture 2.2%, and screening (by the 75um sieve) 96%, suspensibility 89%, lasting foaming characteristic (1min) 10mL, wetability≤1min, the acceleration heat storage stability is qualified.
Embodiment 4
80% tribenuron-methyl water dispersible granule.Take by weighing the former medicine 80% of tribenuron-methyl, wetting agent calcium dodecyl benzene sulfonate 3.0%, dispersant Fluhyzon formaldehyde condensation products 8%, disintegrant bentonite 5%, binding agent polyvinyl alcohol 1%, it is pressed conventional method mixes, after stirring, obtain female powder, granulation then through the airslide disintegrating mill pulverizing, oven dry, sieving obtains about 80% tribenuron-methyl water dispersible granule.Through the check active constituent content is 80.3%, moisture 2.0%, and screening (by the 75um sieve) 98%, suspensibility 93%, lasting foaming characteristic (1min) 10mL, wetability≤1min, the acceleration heat storage stability is qualified.
Claims (7)
1, a kind of tribenuron-methyl water dispersible granule and preparation method thereof, its active ingredient is tribenuron-methyl, it is characterized in that making rule or irregular particle by the former medicine of tribenuron-methyl and wetting agent, dispersant, disintegrant, carrier, binding agent hybrid process, the content of tribenuron-methyl is 40%-80% (percentage by weight).
2, tribenuron-methyl water dispersible granule according to claim 1, it is characterized in that wherein: wetting agent can be one or more in neopelex, calcium dodecyl benzene sulfonate, alkyl phosphoric acid sodium, alkylphenol-polyethenoxy level sodium sulphate, lauryl sodium sulfate, the alkylnaphthalene sulfonate.
3, tribenuron-methyl water dispersible granule according to claim 1, it is characterized in that wherein: dispersant can be one or more in alkylphenol polyoxyethylene formaldehyde condensation products sodium sulphate, sodium lignin sulfonate, calcium lignosulfonate, Fluhyzon formaldehyde condensation products, the polycarboxylate.
4, tribenuron-methyl water dispersible granule according to claim 1 is characterized in that, wherein: disintegrant can be one or more in starch, sodium sulphate, sulfuric acid amine, white carbon, the bentonite.
5, tribenuron-methyl water dispersible granule according to claim 1 is characterized in that, wherein: carrier can be one or more in kaolin, precipitated calcium carbonate, diatomite, attapulgite, the sepiolite.
6, tribenuron-methyl water dispersible granule according to claim 1 is characterized in that, wherein: binding agent can be one or more in polyethylene glycol, polyvinyl alcohol, carboxymethyl cellulose, the denaturated sodium polyacrylate.
7, the preparation method of tribenuron-methyl water dispersible granule according to claim 1, it is characterized in that, the former medicine of tribenuron-methyl is added a certain proportion of wetting agent, dispersant, disintegrant, binding agent, carrier mixing, after stirring, obtain female powder through pulverizing, female powder is mixed adding a certain proportion of deionized water, and granulation is then dried, sieving obtains tribenuron-methyl water dispersible granule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101038212A CN101554160A (en) | 2008-04-11 | 2008-04-11 | Tribenuron-methyl water dispersible granule and method for preparing same |
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| CNA2008101038212A CN101554160A (en) | 2008-04-11 | 2008-04-11 | Tribenuron-methyl water dispersible granule and method for preparing same |
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| CN101554160A true CN101554160A (en) | 2009-10-14 |
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| CNA2008101038212A Pending CN101554160A (en) | 2008-04-11 | 2008-04-11 | Tribenuron-methyl water dispersible granule and method for preparing same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016173491A1 (en) * | 2015-04-28 | 2016-11-03 | Rotam Agrochem International Company Limited | Herbicidal composition and method for controlling plant growth |
| CN108013067A (en) * | 2018-01-16 | 2018-05-11 | 中土化工（安徽）有限公司 | A kind of preparation method of tribenuron-methyl wettable powder |
| CN108294038A (en) * | 2018-02-27 | 2018-07-20 | 镇江先锋植保科技有限公司 | A kind of tribenuron-methyl water dispersible granule |
-
2008
- 2008-04-11 CN CNA2008101038212A patent/CN101554160A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016173491A1 (en) * | 2015-04-28 | 2016-11-03 | Rotam Agrochem International Company Limited | Herbicidal composition and method for controlling plant growth |
| CN107249328A (en) * | 2015-04-28 | 2017-10-13 | 龙灯农业化工国际有限公司 | Control the Herbicidal combinations and method of plant growth |
| CN108013067A (en) * | 2018-01-16 | 2018-05-11 | 中土化工（安徽）有限公司 | A kind of preparation method of tribenuron-methyl wettable powder |
| CN108294038A (en) * | 2018-02-27 | 2018-07-20 | 镇江先锋植保科技有限公司 | A kind of tribenuron-methyl water dispersible granule |
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Application publication date: 20091014 |