CN106259322A - A kind of pesticide multicomponent mixture compounds dry suspending agent and preparation method thereof - Google Patents
A kind of pesticide multicomponent mixture compounds dry suspending agent and preparation method thereof Download PDFInfo
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- CN106259322A CN106259322A CN201610598736.2A CN201610598736A CN106259322A CN 106259322 A CN106259322 A CN 106259322A CN 201610598736 A CN201610598736 A CN 201610598736A CN 106259322 A CN106259322 A CN 106259322A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
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- Engineering & Computer Science (AREA)
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Abstract
A kind of pesticide multicomponent mixture compounds dry suspending agent and preparation method thereof.The invention provides the preparation method and applications of a kind of nicosulfuron atrazine sulphur oxadiazon dry suspending agent, this suspending agent comprises the component of following mass percent: nicosulfuron 0～50%, atrazine 0～80%, mesotrione 0～50%, wetting dispersing agent 2～30%, emulsifying agent 0～15%, remaining is carrier.This compounding dry suspending agent has and can serialization cleaning produce, and easily stores, transports, measures well, uses conveniently, and organic solvent-free, environmental pollution is little, storing and transportation safety.Overcoming conventional smoke Sulfometuron Methyl atrazine mesotrione oil-suspending agent particle diameter difficulty levigate, production efficiency is low, and former medicine easily decomposes, and stores easily layering, the knot end, enter water be difficult to a series of productions such as emulsifying, store, problem present in use process.This compounding dry suspending agent preventive effect is notable, is a kind of herbicide having outstanding preventive effect to corn field annual grassy weeds.
Description
Technical field
The present invention relates to technical field of pesticide, particularly relate to the dry suspension of a kind of nicosulfuron atrazine mesotrione
The preparation method of agent.
Background technology
Nicosulfuron: systemic herbicide, can be weeds stem and leaf and root absorption, conducts subsequently, cause in plant
Sensitive plant growth retardation, stem and leaf chlorisis, the most withered, generally 20-25 days dead, but in the case of temperature is relatively low
Some perennial weeds is needed the longer time.Dispenser good drug efficacy before 4 leaf phases after bud, when Seedling is big, dispenser drug effect declines.Should
Medical instrument has activity of weeding before bud, but low after activity relatively bud.
G-30027: before being interior suction selectivity Seedling, Seedling rear enclosed herbicide.Root absorption is main, and stem and leaf absorbs seldom.Herbicide
Effect and the same Simanex of selectivity, easily by rainwater drip washing to soil deeper, also effective to some deep root grass, but it is easily generated medicine
Evil.Lasting period is the longest.Its weed control spectrum is relatively wide, can prevent and kill off multiple annual gramineae and broad leaved weed.It is applicable to Semen Maydis, height
The dry crops such as fine strain of millet, Caulis Sacchari sinensis, fruit tree, nursery, forest land prevent and kill off Herba Digitariae, barnyard grass, Herba Setariae Viridis, dried tuber, amur foxtail, knotweed, Herba chenopodii, cruciate flower
Section, pulse family weeds, especially have preferable selectivity (because there being detoxication mechanisms in Corn), to some perennial weeds also to Semen Maydis
There is certain inhibitory action.
Mesotrione: to corn field annual broadleaf weed and part grassy weed such as Herba Abutili, Amaranthus mangostanus L., Herba chenopodii, knotweed, barnyard grass
Grass, Herba Digitariae etc. have preferable prevention effect.And it is poor to Herba Acalyphae and some grassy weed prevention effects.
CN1425298A has invented the compositions of a kind of nicosulfuron and atrazine suspending agent, permissible by compounding them
Expansion weed control spectrum, raising herbicidal effect, minimizing remain, reduce the poisoning to crop, delay the generation of Weed Resistance, reduction medication
Amount, minimizing environmental pollution；The most time saving and energy saving, reduce peasant burden CN200910023350.9 invention one and be used for preventing and treating Semen Maydis
Field grassy weed and the herbicide of broad leaved weed, it is that activity forms by nicosulfuron, atrazine and mesotrione
Ternary herbicide combination product, dosage form is oil-suspending agent, change compound product equally have expansion weed control spectrum, improve herbicidal effect, province
Time labour-saving feature.
Above-mentioned two patent of invention is the complex weedicide of nicosulfuron, atrazine, mesotrione, and it is outstanding that dosage form is oil
Floating agent, oil-suspending agent base oil is from crude vegetal or methylated vegetable oil, such as Oleum Glycines, methyl oleate etc., steady quality
Property is poor, freezing point 2-5 degree；Adding particle diameter in man-hour and be difficult to levigate, nicosulfuron and mesotrione are stable at pH6-9 and 2-5 respectively,
Same system often results in the decomposition of former medicine.In addition during storage, oil-suspending agent is easily generated precipitated and separated, enters the automatic emulsified property of water
Difference, is unfavorable for using.
Summary of the invention
It is an object of the invention to for above-mentioned the deficiencies in the prior art, it is provided that a kind of pesticide multicomponent mixture compounds dry suspending agent
And preparation method thereof.
The object of the present invention is achieved like this, and a kind of pesticide multicomponent mixture compounds dry suspending agent, it is characterized in that, including with
The component of lower mass percent: nicosulfuron 0～50%, atrazine 0～80%, mesotrione 0～50%, wetting dispersing agent 2
～30%, emulsifying agent 0～15%, remaining is carrier.
Described wetting dispersing agent is selected from sodium lignin sulfonate, calcium lignosulfonate, magnesium lignosulfonate, alkyl benzene sulphonate
Salt, naphthalene sulfonic acid-formaldehyde condensation product sulfonate, alkyl naphthalene sulfonic acid formaldehyde condensation products sulfonate, dodecylbenzene sodium sulfonate, alkyl acid
Ethoxylate, polyoxyethylene polyoxypropylene block polymer, alkyl acid polyoxyethylene ether sulfate, succinic acid half fat sulfonic acid
Salt, sodium lauryl sulphate, polycarboxylate, polyoxyethylene ether phosphoric acid double fat, the one of alkylphenol polyoxyethylene sulphuric acid hydrochlorate
Or it is multiple.
Described emulsifying agent is selected from agriculture breast 500, styryl phenyl polyoxyethylene ether, fatty alcohol-polyoxyethylene ether, alkyl phenol
Polyoxyethylene ether, sorbitan fatty acid ester, polyoxyethylene polyoxypropylene block copolymer, alkylphenol formaldehyde condensation substance polyoxy
Vinyl Ether, alkyl phenol formaldehyde resin polyoxyethylene ether, phenethyl phenol polyethenoxy polyethenoxy ether, castor oil polyoxyethylene ether,
One or more in alkyl benzyl polyoxyethylene ether.
Described carrier be selected from white carbon, kieselguhr, potter's clay, attapulgite, precipitated calcium carbonate, bentonite, Kaolin, concavo-convex
One or more in rod soil, inorganic salt.
A kind of pesticide multicomponent mixture compounds the preparation method of dry suspending agent, it is characterized in that, comprises the following steps:
Step (1) is equipped with the raw material of following mass percent component: nicosulfuron 0～50%, atrazine 0～80%, nitre
Sulphur oxadiazon 0～50%, wetting dispersing agent 2～15%, emulsifying agent 0～15%, remaining is carrier；
Nicosulfuron that step (1) has been equipped with by step (2), atrazine, mesotrione, wetting agent dispersant, emulsifying agent,
Carrier mixes with water, obtains serosity；
The serosity that step (2) obtains is ground and mist projection granulating by step (3) successively, obtains nicosulfuron green bristlegrass and goes
Tianjin mesotrione compounds dry suspending agent, i.e. pesticide multicomponent mixture compounds dry suspending agent.
In described step (3), being ground successively by the serosity that step (2) obtains, grinding uses sand mill and carries out
Grind；
Described sand mill is divided into one-level sand mill, two grades of sand mills, three-level sanding machine, level Four sand mills, and step (2) obtains
Serosity in one-level sand mill, first carry out the coarse pulverization of first stage, in two grades of sand mills, then carry out separating twice, root
It is crushed to level Four according to the optional one-level of needs pulverize；
Abrasive media in described sand mill selects the medicine ball of zirconium oxide material 1-6, and feed liquid solid content is 20%-
70%, grinding temperature is 0-60 DEG C, and after grinding, material particular diameter requires D90≤5 μm, squeezes into a high position after slurry detection is qualified
Groove constant temperature stores.
Described mist projection granulating includes three kinds of modes: press spray drying-granulating, atomizer drying-granulating, fluid bed
Spray drying granulation.
Described press spray drying-granulating process is that feed liquid enters press spray exsiccator after high-pressure pump pressurizes
Pressure nozzle, nozzle bore 0.2-2, atomizing pressure 2.0-6.0MP, hot wind inlet temperature is 110 DEG C-180 DEG C, air draft
Temperature is 40 DEG C-90 DEG C.
Described pressure nozzle is arranged on top center and/or the bottom centre of press spray exsiccator primary drying chamber
And/or side.
By the present invention, disclose a kind of nicosulfuron, atrazine, mesotrione ternary component compound dry suspending agent and
Preparation method.The nicosulfuron of the present invention, atrazine, mesotrione ternary component compound dry suspending agent and are made up of following raw material:
Former medicine (nicosulfuron, atrazine, mesotrione), wetting dispersing agent, emulsifying agent, surplus are carrier；Its processing technique step bag
Including: proportion liquid, wet method sand milling is pulverized, spray drying granulation, screening and separating, packaging.In this technique, sand milling part is in technique
Using multistage sanded treatment, the original mean diameter of product is less than 2 microns, and part particle diameter reaches nanoscale, and suspensibility is more than 95%.
The dry suspending agent of the present invention can serialization cleaning produce, and easily stores, transports, measures well, uses conveniently, and organic solvent-free, to ring
Environment pollution is little, storing and transportation safety.Overcoming conventional smoke nitre green bristlegrass oil-suspending agent particle diameter difficulty levigate, production efficiency is low, and former medicine is easy
Decompose, store easily layering, the knot end, enter water be difficult to a series of productions such as emulsifying, store, problem present in use process.
In sum, the present invention, it is provided that a kind of nicosulfuron atrazine mesotrione compounds dry suspending agent, has
Expand weed control spectrum, delay the features such as herbicide resistance, not only can prevent and treat grassy weed, part broad leaved weed is also had preferably
Preventive effect, also reduces the usage amount of single dose simultaneously, reduces the poisoning risk to succession crop.This dry suspending agent is watered and makes simultaneously
Used time, it is not required to apply external force stirring and can enter the automatic vaporific dispersion of water, and dispersion particle size 50% can reach Nano grade, it is considered to
To preferably playing drug effect, need during use to be together used in mixed way with vegetable oil.It addition, in process of production can serialization cleaning
Producing, during storage, product does not decomposes, transportation safety.Overcome that conventional smoke nitre green bristlegrass oil-suspending agent easily decomposes, particle diameter difficulty is levigate,
Store easily layering, the knot end, enter water be difficult to a series of productions such as emulsifying, store, problem present in use process.
Detailed description of the invention
Scheme one
Processing method: first water, sodium lignin sulfonate, polyoxyethylene polyoxypropylene block copolymer, Kaolin, green bristlegrass are gone
Tianjin, nicosulfuron put in stirred tank successively, stir, and through sand mill wet method sand milling, sanding media uses 1.6-2.8 millimeter
Zirconium oxide material, grinding temperature controls at 20-50 DEG C, and feed liquid is ground to 90% particle diameter and is less than 3 μm, is dried system through press spray
Becoming atrazine, nicosulfuron dry suspending agent, atomizing pressure 4.0MP, hot wind inlet temperature is 160 DEG C-180 DEG C, and temperature of outgoing air is
60℃-70℃。
Testing index:
| Testing index | Detection data |
| Atrazine content | 73.5% |
| Nicosulfuron content | 4.28% |
| Particle appearance | Hollow bead, size about about 60-100 mesh |
| Surface tension | 38.7mN/m |
| PH value (GB/T1601-1993) | 6.20 |
| Particle diameter (laser particle size analyzer) | D90=3.5 μm |
| Moisture content (GB/T1600-2001) | 2.6% |
| Suspensibility (GB/T 14825-2006) | 98.5% |
| Heat storage (GB/T 19136-2003) | Qualified |
Scheme two
Processing method: first water, sodium lignin sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sulfonate, sorbitan fatty acid
Ester, fatty alcohol-polyoxyethylene ether, kieselguhr, mesotrione, atrazine, nicosulfuron put in stirred tank successively, stir,
Through sand mill wet method sand milling, sanding media uses 1.6-2.8 millimeter zirconium pearl, and grinding temperature controls at 20-45 DEG C, and feed liquid is ground to
90% particle diameter is less than 2.5 μm, is dried through press spray and makes atrazine, nicosulfuron dry suspending agent, atomizing pressure 3.0MP,
Hot wind inlet temperature is 150 DEG C-160 DEG C, and temperature of outgoing air is 70 DEG C-80 DEG C.
Testing index:
50% atrazine+4% nicosulfuron+15% mesotrione DF that the present invention utilizes embodiment 2 to prepare carries out drug effect
Test, experimentation is as follows:
One, test medicine: 50% atrazine+4% nicosulfuron+15% mesotrione DF (making by oneself)
30% nitre sulphur cigarette phonetic atrazine oil-suspending agent (commercially available)
4% nicosulfuron oil-suspending agent (commercially available)
Two, experimental condition: this experimental establishment is test block at Xiuqian City of Jiangsu Province test corn field, weeds coverage 50%
Left and right, natural plant height is 5-10 cm, grows vigorous, and children is tender.Weeds are mainly barnyard grass, Herba Setariae Viridis, Herba Portulacae, Herba Abutili, dried tuber.
Three, experimental technique
1, test plot is divided into multiple community by little Division, and every plot area is resistance to, and every minizone has field to intercept,
Experimental plot random alignment.Test sets totally 4 process of medicament comparison, blank, chemicals treatment, and each process 5 repeats secondary.Little
District's area: 25 square metres；Number of repetition: 4 times.
Table 1 reagent agent EXPERIMENTAL DESIGN
2, application method
Calculate formulation rate by plot area, the medicinal liquid prepared uniformly is sprayed in corresponding community, test method medicament
Treatment region, presses plot area by the dry suspending agent of various embodiments of the present invention and each effective ingredient consumption calculates each community consumption, uses
Workers and peasants one type knapsack hand sprayer stem and leaf is sprayed, and is watered 300L by per hectare preparation and is equipped with medicinal liquid.
3, weedy rices method
3.1 control times and number of times
Within 7 days after medicine, observe, 15 days investigation weeds strain numbers, 30 days investigation weeds strain numbers and weighing fresh weight (g).
3.2 investigation method
Using randomization, every community takes 3 sampling points, every sampling point 0.25m2.Measure various weeds strain numbers in sampling point, fresh
Weight.Average and calculate strain preventive effect and fresh weight preventive effect.
3.3 drug effect computational methods
Strain preventive effect (%)=(check plot weeds strain number-treatment region weeds strain number)/weeds strain number × 100, check plot
Fresh weight preventive effect (%)=(check plot fresh weight-treatment region fresh weight)/fresh weight × 100, check plot.
The arcsin square root conversion value of strain preventive effect and fresh weight preventive effect is carried out variance analysis (spss statistical software) and adopts
Whether significant difference is there is by the average preventive effect of the more each medicament of duncan's new multiple range method.
4 crop investigation
Within after medicine 7 days, observe, 15 days and observe poisoning situation during 30 days efficacy surveys simultaneously.See whether symptom of chemical damage,
If any, take 3 points at random, poisoning is carried out grading evaluation.
Four, experimental result
50% atrazine+4% nicosulfuron+15% mesotrione DF prevents and kill off the average strain preventive effect (%) of corn field grass
Note: after numeral, the identical expression of lower case there was no significant difference in 95% level.
50% atrazine+4% nicosulfuron+15% mesotrione DF that this formula prepares as seen from the above table, beautiful for the summer
Rice postemergence weed control, has preferable preventive effect to barnyard grass, Herba Setariae Viridis, Herba Portulacae, Herba Abutili, dried tuber, and preventive effect is notable and is better than 40g/L
The preventive effect of nicosulfuron oil-suspending agent, and the preventive effect of commercially available 30% nitre sulphur cigarette phonetic atrazine oil-suspending agent is suitable, beautiful to the summer
Rice, without poisoning, is a kind of herbicide having outstanding preventive effect to corn field annual grassy weeds.
Experimental result:
50% atrazine+4% nicosulfuron+15% mesotrione DF preventive effect that this formula visible prepares is notable and is better than excellent
In the preventive effect of 40g/L nicosulfuron oil-suspending agent, and the preventive effect of commercially available 30% nitre sulphur cigarette phonetic atrazine oil-suspending agent is suitable,
It it is a kind of herbicide that corn field annual grassy weeds is had outstanding preventive effect.
Claims (9)
1. pesticide multicomponent mixture compounds a dry suspending agent, it is characterized in that, including the component of following mass percent: nicosulfuron
0～50%, atrazine 0～80%, mesotrione 0～50%, wetting dispersing agent 2～30%, emulsifying agent 0～15%, remaining is for carrying
Body.
A kind of pesticide multicomponent mixture the most according to claim 1 compounds dry suspending agent, it is characterized in that: described wetting dispersing agent
Selected from sodium lignin sulfonate, calcium lignosulfonate, magnesium lignosulfonate, alkylbenzenesulfonate, naphthalene sulfonic acid-formaldehyde condensation product sulfonic acid
Salt, alkyl naphthalene sulfonic acid formaldehyde condensation products sulfonate, dodecylbenzene sodium sulfonate, alkyl acid Ethoxylate, polyoxyethylene polyoxy
Propylene block copolymer, alkyl acid polyoxyethylene ether sulfate, succinic acid half fat sulfonate, sodium lauryl sulphate, polycarboxylic acids
The double fat of salt, polyoxyethylene ether phosphoric acid, alkylphenol polyoxyethylene sulphuric acid hydrochlorate one or more.
A kind of pesticide multicomponent mixture the most according to claim 1 compounds dry suspending agent, it is characterized in that: described emulsifying agent is selected from
Agriculture breast 500, styryl phenyl polyoxyethylene ether, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, Sorbitan alcohol ester
Fat acid esters, polyoxyethylene polyoxypropylene block copolymer, alkylphenol formaldehyde condensation substance polyoxyethylene ether, alkylphenol-formaldehyde resin are poly-
In oxygen vinyl Ether, phenethyl phenol polyethenoxy polyethenoxy ether, castor oil polyoxyethylene ether, alkyl benzyl polyoxyethylene ether one
Plant or multiple.
A kind of pesticide multicomponent mixture the most according to claim 1 compounds dry suspending agent, it is characterized in that: described carrier is selected from white
White carbon black, kieselguhr, potter's clay, attapulgite, precipitated calcium carbonate, bentonite, Kaolin, one in attapulgite, inorganic salt or
Multiple.
5. pesticide multicomponent mixture compounds a preparation method for dry suspending agent, it is characterized in that, comprises the following steps:
Step (1) is equipped with the raw material of following mass percent component: nicosulfuron 0～50%, atrazine 0～80%, mesotrione
0～50%, wetting dispersing agent 2～15%, emulsifying agent 0～15%, remaining is carrier；
Nicosulfuron that step (1) has been equipped with by step (2), atrazine, mesotrione, wetting agent dispersant, emulsifying agent, load
Body mixes with water, obtains serosity；
The serosity that step (2) obtains is ground and mist projection granulating by step (3) successively, obtains nicosulfuron atrazine nitre sulphur
Oxadiazon compounds dry suspending agent, i.e. pesticide multicomponent mixture compounds dry suspending agent.
A kind of pesticide multicomponent mixture the most according to claim 5 compounds the preparation method of dry suspending agent, it is characterized in that, described
In step (3), being ground successively by the serosity that step (2) obtains, grinding uses sand mill and is ground；
Described sand mill is divided into one-level sand mill, two grades of sand mills, three-level sanding machine, level Four sand mills, the slurry that step (2) obtains
Liquid first carries out the coarse pulverization of first stage in one-level sand mill, then carries out separating twice in two grades of sand mills, according to need
One-level be may select is crushed to level Four and pulverizes；
Abrasive media in described sand mill selects the medicine ball of zirconium oxide material 1-6, and feed liquid solid content is 20%-70%, grinds
Mill temperature is 0-60 DEG C, and after grinding, material particular diameter requires D90≤5 μm, squeezes into the storage of head tank constant temperature after slurry detection is qualified
Deposit.
A kind of pesticide multicomponent mixture the most according to claim 5 compounds the preparation method of dry suspending agent, it is characterized in that, described
Mist projection granulating includes three kinds of modes: press spray drying-granulating, atomizer drying-granulating, bed spray are dried and make
Grain.
A kind of pesticide multicomponent mixture the most according to claim 7 compounds the preparation method of dry suspending agent, it is characterized in that, described
The pressure nozzle of press spray drying-granulating process to be feed liquid enter after high-pressure pump pressurizes press spray exsiccator,
Nozzle bore 0.2-2, atomizing pressure 2.0-6.0MP, hot wind inlet temperature is 110 DEG C-180 DEG C, and temperature of outgoing air is 40 DEG C-90
℃。
A kind of pesticide multicomponent mixture the most according to claim 8 compounds the preparation method of dry suspending agent, it is characterized in that, described
Pressure nozzle is arranged on the top center of press spray exsiccator primary drying chamber and/or bottom centre and/or side.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142238A (en) * | 2021-06-03 | 2021-07-23 | 河南瀚斯作物保护有限公司 | Weeding composition and post-emergence herbicide containing same |
| CN114503995A (en) * | 2022-03-03 | 2022-05-17 | 山东潍坊润丰化工股份有限公司 | Dispersible oil suspension containing atrazine, mesotrione and nicosulfuron and preparation method thereof |
-
2016
- 2016-07-27 CN CN201610598736.2A patent/CN106259322A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113142238A (en) * | 2021-06-03 | 2021-07-23 | 河南瀚斯作物保护有限公司 | Weeding composition and post-emergence herbicide containing same |
| CN114503995A (en) * | 2022-03-03 | 2022-05-17 | 山东潍坊润丰化工股份有限公司 | Dispersible oil suspension containing atrazine, mesotrione and nicosulfuron and preparation method thereof |
| CN114503995B (en) * | 2022-03-03 | 2024-02-02 | 山东潍坊润丰化工股份有限公司 | Dispersible oil suspending agent containing atrazine, mesotrione and nicosulfuron and preparation method thereof |
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Application publication date: 20170104 |