CN104855374A - Soluble water dispersible granules containing metsulfuron methyl and preparation method of soluble water dispersible granules - Google Patents
Soluble water dispersible granules containing metsulfuron methyl and preparation method of soluble water dispersible granules Download PDFInfo
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- CN104855374A CN104855374A CN201510268569.0A CN201510268569A CN104855374A CN 104855374 A CN104855374 A CN 104855374A CN 201510268569 A CN201510268569 A CN 201510268569A CN 104855374 A CN104855374 A CN 104855374A
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- Prior art keywords
- methyl
- agent
- metsulfuron
- moisture content
- dispersible granules
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- 239000005584 Metsulfuron-methyl Substances 0.000 title claims abstract description 70
- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical group COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004562 water dispersible granule Substances 0.000 title abstract 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002270 dispersing agent Substances 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims description 22
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 18
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 17
- 239000011734 sodium Substances 0.000 claims description 17
- 229910052708 sodium Inorganic materials 0.000 claims description 17
- 239000007884 disintegrant Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 9
- 239000004202 carbamide Substances 0.000 claims description 9
- 239000007859 condensation product Substances 0.000 claims description 9
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 8
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 8
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 7
- 229920001732 Lignosulfonate Polymers 0.000 claims description 7
- 239000008103 glucose Substances 0.000 claims description 7
- 238000004898 kneading Methods 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 6
- -1 polyoxyethylene formaldehyde Polymers 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 4
- ZITVKGIRQCDOSX-UHFFFAOYSA-N 1h-cyclopropa[a]naphthalene Chemical compound C1=CC=CC2=C3CC3=CC=C21 ZITVKGIRQCDOSX-UHFFFAOYSA-N 0.000 claims description 3
- RQJQQSAYDFANNM-UHFFFAOYSA-N 2,3-dibutylnaphthalene-1-sulfonic acid;formaldehyde Chemical compound O=C.C1=CC=C2C(S(O)(=O)=O)=C(CCCC)C(CCCC)=CC2=C1 RQJQQSAYDFANNM-UHFFFAOYSA-N 0.000 claims description 3
- WODGMMJHSAKKNF-UHFFFAOYSA-N 2-methylnaphthalene-1-sulfonic acid Chemical compound C1=CC=CC2=C(S(O)(=O)=O)C(C)=CC=C21 WODGMMJHSAKKNF-UHFFFAOYSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims description 3
- PKJZYOFPPJHDRW-UHFFFAOYSA-N formaldehyde;sulfuric acid Chemical compound O=C.OS(O)(=O)=O PKJZYOFPPJHDRW-UHFFFAOYSA-N 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- VLYFRFHWUBBLRR-UHFFFAOYSA-L potassium;sodium;carbonate Chemical compound [Na+].[K+].[O-]C([O-])=O VLYFRFHWUBBLRR-UHFFFAOYSA-L 0.000 claims description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 3
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 3
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004563 wettable powder Substances 0.000 abstract description 2
- 231100000674 Phytotoxicity Toxicity 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 230000003449 preventive effect Effects 0.000 description 16
- 238000009472 formulation Methods 0.000 description 10
- 241000209140 Triticum Species 0.000 description 9
- 235000021307 Triticum Nutrition 0.000 description 9
- 235000011305 Capsella bursa pastoris Nutrition 0.000 description 8
- 240000008867 Capsella bursa-pastoris Species 0.000 description 8
- 235000013339 cereals Nutrition 0.000 description 8
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 5
- 230000002153 concerted effect Effects 0.000 description 5
- 238000005338 heat storage Methods 0.000 description 5
- 244000105017 Vicia sativa Species 0.000 description 4
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 4
- 238000010899 nucleation Methods 0.000 description 4
- 239000000575 pesticide Substances 0.000 description 4
- 239000003905 agrochemical Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 240000001592 Amaranthus caudatus Species 0.000 description 2
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 2
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 240000006122 Chenopodium album Species 0.000 description 2
- 235000009344 Chenopodium album Nutrition 0.000 description 2
- 240000003173 Drymaria cordata Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 244000292697 Polygonum aviculare Species 0.000 description 2
- 235000006386 Polygonum aviculare Nutrition 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 240000005592 Veronica officinalis Species 0.000 description 2
- HYJODZUSLXOFNC-UHFFFAOYSA-N [S].[Cl] Chemical compound [S].[Cl] HYJODZUSLXOFNC-UHFFFAOYSA-N 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 229920005551 calcium lignosulfonate Polymers 0.000 description 2
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002363 herbicidal effect Effects 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 244000264242 Descurainia sophia Species 0.000 description 1
- 235000017680 Descurainia sophia Nutrition 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 229940100389 Sulfonylurea Drugs 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229940095102 methyl benzoate Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N perisophthalic acid Natural products OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses soluble water dispersible granules containing metsulfuron methyl and a preparation method of the soluble water dispersible granules and belongs to the technical field of agricultural weed control. The soluble water dispersible granules containing metsulfuron methyl comprises components in percentage by mass as follows: 10%-80% of metsulfuron methyl technical, 1%-10% of a dispersing agent, 0.5%-5% of a salt-forming agent, 1%-3% of a disintegrating agent, 0%-5% of a binder,0%-2% of water and the balance of filler. The preparation process of the soluble water dispersible granules is simple, the soluble water dispersible granules have lower environment pollution and can be rapidly dispersed and uniformly dissolved in water by the aid of the specific salt-forming agent, few soluble water dispersible granules are required when used for weed control, and the soluble water dispersible granules have a good weed control effect and low phytotoxicity; by comparison with Heli, namely wettable powder with concentration being 20% and 10% and metsulfuron-methyl-containing water dispersible granules with concentration being 60%, the crop yield is higher with the adoption of the soluble water dispersible granules; the cost is low, the packaging requirement is low, and the soluble water dispersible granules containing metsulfuron methyl are suitable for large-area popularization.
Description
Technical field
The present invention relates to field of pesticide preparation, relate to a kind of metsulfuron-methyl solubility moisture content shot agent and preparation method thereof specifically.
Background technology
Metsulfuron-methyl metsulfuron-methyl chemical name: 2-[(4-methoxyl group-6-methyl isophthalic acid, 3,5-triazinyl-2-base) ureido sulfuryl] methyl benzoate, it is a kind of high work, wide spectrum, has optionally inner sucting conduction type sulfonylurea cornfield herbicidal.By du pont company's another efficient kind in exploitation after chlorine sulphur is grand in 1980, its activity is higher than grand 3 times of chlorine sulphur.After being absorbed by weeds root and blade, conduct very fast in plant body, can Xiang Ding and to base portion conduction, within a few hours, suppress rapidly the growth on plant roots and young sprout top, within 3-14 days, plant is withered.Absorbed by wheat seeding and enter after in plant, by the enzymatic conversion in wheat strain, degrade rapidly, so wheat has larger tolerance to this product.The usage amount of this agent is little, can by adsorption by soil, and the degradation speed in soil is very slow, especially in alkaline soils, degrades slower.Effectively can prevent and treat the weeds such as amur foxtail, Veronica, chickweed, common vetch, shepherd's purse, broken last shepherd's purse, fragrant wheat ma, lamb's-quarters, knotweed, rice stranding grass, water peanut, have good drug resistance to cereal crop to metsulfuron-methyl.
The former medicine of metsulfuron-methyl is water-soluble hardly, and existing product is made 20%, 10% wetting powder primarily of du pont company and is called with joint efforts, the 60% metsulfuron-methyl moisture content shot agent that domestic Jiangsu limited company of hormone study institute produces.When wetting powder or the agent of moisture content shot are used, spray at crop cauline leaf and soil surface in suspended particulate shape after adding water.Water-fast particle owing to using, although granularity is very little, can be wetting, but the number of amount of water, what wettable powder formulation suspensibility was low when spraying is uneven, dust from flying when producing and use, the disintegration of moisture content shot agent not exclusively blocks the factors such as shower nozzle more or less all affects the degree of scatter of particulate pharmaceutical agent at crop cauline leaf and soil surface, then the performance of drug effect is affected, the collection of regional area medicament is deposited or the excessive normal growth that also can suppress wheat seeding, serious excessive meeting produces poisoning to wheat seeding, particularly in the soil that PH is high, the longevity of residure is long, poisoning effect is had to rear stubble.Therefore the above-mentioned formulation metsulfuron-methyl that have impact on to a certain degree uses more widely.
The agent of moisture content shot to enter after water can not disintegration dissolving rapidly, speed slow, secondary is needed to dissolve, dispersion forms the granular formulation of suspension, effective ingredient-use rate is low, generally, the availability of effective ingredient is about 70%, and at present, the weed killer herbicide containing metsulfuron-methyl does not also have the formulation that effective ingredient-use rate is higher.For this reason, applicant tests through years of researches, prior art adds a step salifying process and optimizes formula further, develop a kind of solubility moisture content shot agent of metsulfuron-methyl, can solve homogeneously in water after it enters water, can dissolve completely, effective ingredient-use rate is high, can 98% be reached, and crop cauline leaf and soil surface can be dispersed in due to its highly dissoluble, thus solve the agent of moisture content shot due to the collection of the regional area medicament disperseing inequality to cause and to deposit or excessive and inhibit the problem of the normal growth of wheat seeding, therefore it is a kind of formulation advanced especially, meet the developing direction of the international formulations of pesticide, be worth research.
Summary of the invention
The object of the invention is to invent a kind of metsulfuron-methyl solubility moisture content shot agent and preparation method thereof.
For realizing object of the present invention, adopt following technical scheme:
The agent of a kind of metsulfuron-methyl solubility moisture content shot comprises the former medicine of metsulfuron-methyl, dispersant, salt forming agent, disintegrant, binding agent, filler and water, wherein, the mass percent that each component accounts for described moisture content shot agent gross mass is metsulfuron-methyl 10-80%, dispersant 1-10%, salt forming agent 0.5-5%, disintegrant 1-3%, binding agent 0-5%, water material 0-2%, surplus is filler.
Wherein said dispersant comprises lignosulfonates, Negel, condensation compound of methyl naphthalene sulfonic acid and formaldehyde sulphate, naphthalene sulfonic acid-formaldehyde condensation product, methanonaphthalene sodium sulfonate dibutyl naphthalenesulfonic acid formaldehyde condensation products, N-Methyl fatty acyl taurines sodium, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, polymerization of carboxylic acid sodium, pull open in powder one or more.
Described salt forming agent can be one in sodium methoxide, caustic alcohol or mixture.
Described disintegrant can be the mixture of Anhydrous potassium carbonate (sodium), Carbon Dioxide hydrogen potassium (sodium) or Anhydrous potassium carbonate (sodium) and Carbon Dioxide hydrogen potassium (sodium).
Described binding agent can be glucose.
Described filler can be potassium chloride (sodium), anhydrous sodium sulfate, amine sulfate, urea one or more.
Metsulfuron-methyl solubility moisture content shot of the present invention agent take metsulfuron-methyl as active ingredient, as preferably, the mass percent that described metsulfuron-methyl accounts for described moisture content shot agent gross mass is 30-50%, described dispersant mass percent is 6-8%, salt forming agent mass percent is 1-3%, and disintegrant mass percent is 1.5-3%, and binding agent mass percent is 2-4%, water material mass percent is 0.5-2%, and surplus is filler.
In dispersant of the present invention, described lignosulfonates are preferably sodium lignin sulfonate, calcium lignosulfonate; As preferred technical scheme, dispersant of the present invention is lignosulfonates, more preferably sodium lignin sulfonate.
In salt forming agent of the present invention, be preferably caustic alcohol.
In disintegrant of the present invention, be preferably Anhydrous potassium carbonate.
In filler of the present invention, be preferably urea.
Present invention also offers the preparation method of described metsulfuron-methyl solubility moisture content shot agent, be calculated in mass percent, by 10-80% metsulfuron-methyl, 1-10% dispersant, 0.5-5% salt forming agent, 1-3% disintegrant, 0-5% binding agent, 0-2% water material, surplus is carrier, is prepared from according to extruder grain method.
Wherein said dispersant comprises lignosulfonates, Negel, condensation compound of methyl naphthalene sulfonic acid and formaldehyde sulphate, naphthalene sulfonic acid-formaldehyde condensation product, methanonaphthalene sodium sulfonate dibutyl naphthalenesulfonic acid formaldehyde condensation products, N-Methyl fatty acyl taurines sodium, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, polymerization of carboxylic acid sodium, pull open in powder one or more.
Described salt forming agent can be one in sodium methoxide, caustic alcohol or mixture.
Described disintegrant can be the mixture of Anhydrous potassium carbonate (sodium), Carbon Dioxide hydrogen potassium (sodium) or Anhydrous potassium carbonate (sodium) and Carbon Dioxide hydrogen potassium (sodium).
Described binding agent can be glucose.
Described filler can be potassium chloride (sodium), anhydrous sodium sulfate, amine sulfate, urea one or more.
Extruder grain technique is the material through air-flow crushing, mixes, and add water kneading after salifying process salify, through extruder grain, dries, sieves and obtain product.
In preparation process, as preferably, the mass percent that described metsulfuron-methyl accounts for described moisture content shot agent gross mass is 30-50%, described dispersant mass percent is 6-8%, salt forming agent mass percent is 1-3%, and disintegrant mass percent is 1.5-3%, and binding agent mass percent is 2-4%, water material mass percent is 0.5-2%, and surplus is filler.
In dispersant of the present invention, described lignosulfonates are preferably sodium lignin sulfonate, calcium lignosulfonate; As preferred technical scheme, dispersant of the present invention is lignosulfonates, more preferably sodium lignin sulfonate.
In salt forming agent of the present invention, be preferably caustic alcohol.
In disintegrant of the present invention, be preferably Anhydrous potassium carbonate.
In filler of the present invention, be preferably urea.
The metsulfuron-methyl solubility moisture content shot agent prepared through preparation method of the present invention is through inspection water content≤2.0%, suspensibility 100%, disintegration time≤1min, dispersed 100%, dissolubility 200g/L in water, acceleration heat storage stability is qualified, meets the quality and technical index of solubility moisture content shot agent.
In addition, field control effectiveness test result shows, metsulfuron-methyl solubility moisture content shot of the present invention agent effectively can prevent and treat the weeds such as amur foxtail, Veronica, chickweed, common vetch, shepherd's purse, broken last shepherd's purse, Descurainia sophia, lamb's-quarters, knotweed, rice stranding grass, water peanut, and compare with making a concerted effort with 60% metsulfuron-methyl moisture content shot agent of same dose (in active ingredient), preventive effect is apparently higher than 60% metsulfuron-methyl moisture content shot agent and the preventive effect of making a concerted effort.Show that metsulfuron-methyl solubility moisture content shot of the present invention agent need not increase formulation rate and can reach higher preventive effect, alleviating agricultural chemicals composition increases the pressure brought to environment.
From above technical scheme, metsulfuron-methyl solubility moisture content shot agent cost of the present invention is low, preparation process is simple, packing instructions are low, environmental pollution is little, and select specific wetting agent and dispersant synergy to improve its preventive effect, effect is higher than 60% metsulfuron-methyl moisture content shot agent and make a concerted effort, can formulation rate be reduced, suit large area to popularize.
Embodiment
The embodiment of the invention discloses a kind of metsulfuron-methyl solubility moisture content shot agent and preparation method thereof, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention is described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope product as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
In order to understand the present invention further, below in conjunction with embodiment, the present invention is described in detail.
The agent of embodiment 1:30% metsulfuron-methyl solubility moisture content shot
According to above-mentioned formula, by metsulfuron-methyl, sodium lignin sulfonate, Anhydrous potassium carbonate, glucose, water, urea mixing, through each material of air-flow crushing, in mixing kettle, add the kneading that to add water after caustic alcohol prepares salify, through extruder grain, dry, sieve and obtain product.
Physicochemical property measures:
Water content≤2.0%, suspensibility 100%, disintegration time≤1min, dispersed 100%, dissolubility 200g/L in water, acceleration heat storage stability is qualified, meets the quality and technical index of solubility moisture content shot agent.
The agent of embodiment 2:50% metsulfuron-methyl solubility moisture content shot
According to above-mentioned formula, by metsulfuron-methyl, sodium lignin sulfonate, Anhydrous potassium carbonate, glucose, water, urea mixing, through each material of air-flow crushing, in mixing kettle, add the kneading that to add water after caustic alcohol prepares salify, through extruder grain, dry, sieve and obtain product.
Physicochemical property measures:
Water content≤2.0%, suspensibility 100%, disintegration time≤1min, dispersed 100%, dissolubility 200g/L in water, acceleration heat storage stability is qualified, meets the quality and technical index of solubility moisture content shot agent.
The agent of embodiment 3:40% metsulfuron-methyl solubility moisture content shot
According to above-mentioned formula, by metsulfuron-methyl, sodium lignin sulfonate, Anhydrous potassium carbonate, glucose, water, urea mixing, through each material of air-flow crushing, in mixing kettle, add the kneading that to add water after caustic alcohol prepares salify, through extruder grain, dry, sieve and obtain product.
Physicochemical property measures:
Water content≤2.0%, suspensibility 100%, disintegration time≤1min, dispersed 100%, dissolubility 200g/L in water, acceleration heat storage stability is qualified, meets the quality and technical index of solubility moisture content shot agent.
The agent of embodiment 4:40% metsulfuron-methyl moisture content shot
According to above-mentioned formula, by metsulfuron-methyl, sodium lignin sulfonate, Anhydrous potassium carbonate, glucose, water, urea mixing, through each material of air-flow crushing, add water kneading in mixing kettle, through extruder grain, dries, sieve and obtain product.
Physicochemical property measures:
Water content≤2.0%, suspensibility 92%, disintegration time≤2min, dispersed 87%, dissolubility 3g/L in water, acceleration heat storage stability is qualified, meets the quality and technical index of moisture content shot agent.
Embodiment 5: field control effectiveness test
Get metsulfuron-methyl solubility moisture content shot agent prepared by each embodiment and certain 60% metsulfuron-methyl moisture content commercially available to fall apart reagent and make a concerted effort to carry out field common vetch, shepherd's purse, broken last shepherd's purse, the fragrant wheat ma test of pesticide effectiveness, every block experimental field area is 20m
2, experimental field randomized arrangement, adds up every block experiment all kinds of weeds strain in field number respectively before dispenser, within after dispenser 10 days, add up the dead strain number of weeds respectively.Control the results are shown in Table 1.Preventive effect calculates according to formula below:
Preventive effect (%)=1-(after dispenser before weeds strain number ÷ dispenser weeds strain number) × 100%
The agent of table 1 metsulfuron-methyl solubility moisture content shot to weeds control efficiency
From table 1 result, be the prerequisite of 0.8g/ mu in metsulfuron-methyl effective ingredient under, the preventive effect of metsulfuron-methyl solubility moisture content shot of the present invention agent is higher than certain 60% metsulfuron-methyl moisture content reagent commercially available and commercially available preventive effect of making a concerted effort, and the preventive effect of the most preferred technical scheme of the present invention (embodiment 1) is higher than the preventive effect of other all metsulfuron-methyl medicaments, result of the test shows the good drug efficacy of metsulfuron-methyl solubility moisture content shot of the present invention agent, need not increase the preventive effect that formulation rate can reach higher, effectively alleviating agricultural chemicals composition increases the pressure brought to environment.
Embodiment 6: field control effectiveness test
Field common vetch, shepherd's purse, broken last shepherd's purse, the fragrant wheat ma test of pesticide effectiveness are carried out in the metsulfuron-methyl moisture content shot agent of the shot agent of metsulfuron-methyl solubility moisture content and embodiment 4 preparation of getting the preparation of each embodiment 3, and every block experimental field area is 20m
2, experimental field randomized arrangement, adds up every block experiment all kinds of weeds strain in field number respectively before dispenser, within after dispenser 10 days, add up the dead strain number of weeds respectively.Control the results are shown in Table 1.Preventive effect calculates according to formula below:
Preventive effect (%)=1-(after dispenser before weeds strain number ÷ dispenser weeds strain number) × 100%
The metsulfuron-methyl moisture content shot agent of table 2 different solubilities to weeds control efficiency
From table 2 result, be the prerequisite of 0.8g/ mu in metsulfuron-methyl effective ingredient under, the metsulfuron-methyl moisture content shot agent preventive effect that the preventive effect of metsulfuron-methyl solubility moisture content shot of the present invention agent is prepared higher than the same ratio that solvability is low, result of the test shows the good drug efficacy of metsulfuron-methyl solubility moisture content shot of the present invention agent, its highly dissoluble makes to increase the preventive effect that formulation rate can reach higher, reduce the pressure that agricultural chemicals composition brings to environment, there is efficient, little, the environment amenable characteristic of usage amount.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. metsulfuron-methyl solubility moisture content shot agent, it is characterized in that: comprise the former medicine of metsulfuron-methyl, dispersant, salt forming agent, disintegrant, binding agent, filler and water, wherein, the mass percent that each component accounts for described moisture content shot agent gross mass is metsulfuron-methyl 10-80%, dispersant 1-10%, salt forming agent 0.5-5%, disintegrant 1-3%, binding agent 0-5%, water material 0-2%, surplus is filler.
2. metsulfuron-methyl solubility moisture content shot according to claim 1 agent, is characterized in that: described dispersant comprises lignosulfonates, Negel, condensation compound of methyl naphthalene sulfonic acid and formaldehyde sulphate, naphthalene sulfonic acid-formaldehyde condensation product, methanonaphthalene sodium sulfonate dibutyl naphthalenesulfonic acid formaldehyde condensation products, N-Methyl fatty acyl taurines sodium, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, polymerization of carboxylic acid sodium, pulls open a kind of in powder or their mixture.
3. metsulfuron-methyl solubility moisture content shot according to claim 1 agent, is characterized in that: described salt forming agent is a kind of in sodium methoxide, caustic alcohol or their mixture.
4. metsulfuron-methyl solubility moisture content shot according to claim 1 agent, is characterized in that: described disintegrant is a kind of in Anhydrous potassium carbonate (sodium), Carbon Dioxide hydrogen potassium (sodium) or Anhydrous potassium carbonate (sodium) and Carbon Dioxide hydrogen potassium (sodium) or their mixture.
5. metsulfuron-methyl solubility moisture content shot according to claim 1 agent, is characterized in that: described binding agent is glucose.
6. metsulfuron-methyl solubility moisture content shot according to claim 1 agent, is characterized in that: described filler is potassium chloride (sodium), a kind of in anhydrous sodium sulfate, amine sulfate, urea or their mixture.
7. metsulfuron-methyl solubility moisture content shot according to claim 1 agent, it is characterized in that: the mass percent that described metsulfuron-methyl accounts for described moisture content shot agent gross mass is 30-50%, described dispersant mass percent is 6-8%, described salt forming agent mass percent is 1-3%, described disintegrant mass percent is 1.5-3%, described binding agent mass percent is 2-4%, and described water material mass percent is 0.5-2%.
8. the preparation method of metsulfuron-methyl solubility moisture content shot agent, it is characterized in that: choose each component by formula rate, be calculated in mass percent, be prepared from according to extruder grain method, wherein said extruder grain technique is the material through air-flow crushing, mixes, and add water kneading after salifying process salify, through extruder grain, dry, sieve and obtain product.
9. the preparation method of metsulfuron-methyl solubility moisture content shot agent according to claim 8, it is characterized in that: be calculated in mass percent, the percentage by weight that each component accounts for total amount is: 10-80% metsulfuron-methyl, 1-10% dispersant, 0.5-5% salt forming agent, 1-3% disintegrant, 0-5% binding agent, 0-2% water material, surplus is carrier, be prepared from according to extruder grain method, wherein said extruder grain technique is the material through air-flow crushing, mix, add water kneading after salifying process salify, through extruder grain, dry, sieve and obtain product.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131899A (en) * | 1993-09-23 | 1996-09-25 | 纳幕尔杜邦公司 | Water-dispersible granular agricultural compositions made by heat exhaustion |
| WO2009054823A2 (en) * | 2007-10-23 | 2009-04-30 | E. I. Du Pont De Nemours And Company | Herbicide mixture, method for controlling undesirable vegetation and use of herbicides |
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2015
- 2015-05-23 CN CN201510268569.0A patent/CN104855374A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131899A (en) * | 1993-09-23 | 1996-09-25 | 纳幕尔杜邦公司 | Water-dispersible granular agricultural compositions made by heat exhaustion |
| WO2009054823A2 (en) * | 2007-10-23 | 2009-04-30 | E. I. Du Pont De Nemours And Company | Herbicide mixture, method for controlling undesirable vegetation and use of herbicides |
Non-Patent Citations (1)
| Title |
|---|
| 刘步林: "《农药剂型加工技术》", 31 October 1998, 化学工业出版社 * |
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