CN102265822A - Wettable powder of chlorthal-dimethyl and preparation method thereof - Google Patents
Wettable powder of chlorthal-dimethyl and preparation method thereof Download PDFInfo
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- CN102265822A CN102265822A CN2011101599929A CN201110159992A CN102265822A CN 102265822 A CN102265822 A CN 102265822A CN 2011101599929 A CN2011101599929 A CN 2011101599929A CN 201110159992 A CN201110159992 A CN 201110159992A CN 102265822 A CN102265822 A CN 102265822A
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- Prior art keywords
- dimethyl
- chlorthal
- dcpa
- wettable powder
- preparation
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Abstract
Provided are wettable powder of chlorthal-dimethyl and a preparation method thereof. The wettable powder of chlorthal-dimethyl comprises, by weight, 1 to 80% of chlorthal-dimethyl, 1 to 20% of auxiliary agents and 1 to 80% of a filler. The wettable powder of chlorthal-dimethyl is prepared by the steps of fully mixing the auxiliary agents, the filler and the original drug of chlorthal-dimethyl according to a certain weight ratio, putting the mixture into a jet mill for crushing and carrying out secondary mixing and secondary crushing. The wettable powder of chlorthal-dimethyl provided in the invention can be used for both pre-emergence treatment and spraying on stems and leaves, is applicable to such crops as corn, soybean, bean, cucumber, onion, capsicum, strawberries, lettuce, eggplants, turnip and the like as well as to lawns and ornamental plants, and is mainly used for preventing and eliminating annual grassy weeds and some broadleaf weeds, e.g., green bristlegrass, crab grass, humid euphorbia, purslane, chickweed, semen cuscutae, etc.
Description
Technical field
The present invention relates to a kind of pesticide wettable, relate to weed killer herbicide dcpa wetting powder and preparation method thereof specifically.
Background technology
The chemical name of compound dcpa is 2,3,5,6 one DCPA.
Its structural formula is:
Dcpa is called for short DCPA, general Chlorthal-dimethyl by name; Commodity are called chlorthaldimethyl, Dacthal or Fatal etc.; English Dimethyl 2,3 by name, 5,6 one tetrachloro-l, 4 one phthalate; Chemistry 2,3,5,6 one tetrachloro-p-phenylene's dioctyl phthalate diformazan vinegar by name; CAs:1861-32-l; Pure product are clear crystal, and fusing point is 154-156 ℃, and is water insoluble, are dissolved in organic solvents such as acetone, benzene,toluene,xylene.Pure product and preparation nature are stable, non-corrosiveness.
Dcpa is a benzoic acid herbicide, inhales transport properties in having, and can be used for the bud pre-treatment, also can carry out the cauline leaf spraying.Be applicable to crops such as corn, soybean, Kidney bean, cucumber, onion, capsicum, strawberry, lettuce, eggplant, turnip, also be applicable to lawn and ornamental plants.Can prevent and kill off annual standing grain herbaceous weed and some broad leaved weed, as green foxtail, lady's-grass, humid euphorbia, kitchen garden, chickweed, dodder etc.
On market, do not find at present any formulation of dcpa.The advantage of wetting powder is that the adhesiveness that is sprayed on the plant is good, and using method is more convenient, and drug effect is relatively good.
Summary of the invention
The purpose of this invention is to provide a kind of dcpa wetting powder and preparation method thereof.Dcpa wetting powder of the present invention can effectively prevent and kill off in corn, soybean, Kidney bean, cucumber, onion, capsicum, strawberry, lettuce, eggplant, turnip and lawn and the ornamental plants annual standing grain herbaceous weed and some broad leaved weed, as green foxtail, lady's-grass, humid euphorbia, kitchen garden, chickweed, dodder etc.
Its composition of wetting powder provided by the invention is as follows according to weight ratio:
Dcpa 1-80%, auxiliary agent 1-20%, inserts 1-80%.
Adoptable auxiliary agent has white carbon, lignin, fatty alcohol-polyoxyethylene ether and composition thereof.Adoptable inserts has kaolin.
The preparation method of dcpa wetting powder of the present invention fully mixes the former medicine of auxiliary agent, inserts and dcpa in blender according to a certain percentage according to weight ratio, putting into airslide disintegrating mill then pulverizes, secondary mixes then, and secondary is pulverized, and can become the dcpa wetting powder.
Dcpa wetting powder provided by the invention has following beneficial effect:
1, use is more convenient, and wetting powder has accounted for bigger composition in the at present domestic formulations of pesticide, in the heart of the user wetting powder has been had certain dependence.
2, the drug effect result is better, and the adhesiveness that wetting powder is sprayed on the plant is good.
Specific embodiment
Following examples describe the present invention in detail, and embodiment mainly is for the present invention is described but not is used for limiting the present invention.
Embodiment 1:
A kind of dcpa wetting powder and preparation method thereof, it prepares earlier 5 kilograms of former medicines of dcpa, 2 kilograms of white carbons, 2 kilograms in lignin, 1 kilogram of fatty alcohol-polyoxyethylene ether and composition thereof, 10 kilograms of kaolin are as raw material.Then the former medicine of dcpa, white carbon, lignin, fatty alcohol-polyoxyethylene ether and composition thereof, kaolin are all added in the blender and mix, putting into airslide disintegrating mill then pulverizes, secondary mixes then, and secondary is pulverized, and can become the dcpa wetting powder.
Embodiment 2:
A kind of dcpa wetting powder and preparation method thereof, it prepares earlier 3 kilograms of former medicines of dcpa, 2 kilograms of white carbons, 2 kilograms in lignin, 1 kilogram of fatty alcohol-polyoxyethylene ether and composition thereof, 12 kilograms of kaolin are as raw material.Then the former medicine of dcpa, white carbon, lignin, fatty alcohol-polyoxyethylene ether and composition thereof, kaolin are all added in the blender and mix, putting into airslide disintegrating mill then pulverizes, secondary mixes then, and secondary is pulverized, and can become the dcpa wetting powder.
Claims (4)
1. dcpa wetting powder and preparation method thereof is characterized in that containing dcpa 1-80% according to percentage by weight, auxiliary agent 1-20%, inserts 1-80%.
2. according to described a kind of dcpa wetting powder of claim 1 and preparation method thereof, it is characterized in that auxiliary agent is white carbon, lignin, fatty alcohol-polyoxyethylene ether and composition thereof.
3. according to described a kind of dcpa wetting powder of claim 1 and preparation method thereof, it is characterized in that inserts is a kaolin.
4. the preparation method of a kind of dcpa wetting powder according to claim 1, it is characterized in that at first the former medicine of auxiliary agent, inserts and dcpa fully being mixed in blender according to a certain percentage, put into airslide disintegrating mill then and pulverize, secondary mixes then, and secondary is pulverized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101599929A CN102265822A (en) | 2011-06-15 | 2011-06-15 | Wettable powder of chlorthal-dimethyl and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101599929A CN102265822A (en) | 2011-06-15 | 2011-06-15 | Wettable powder of chlorthal-dimethyl and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102265822A true CN102265822A (en) | 2011-12-07 |
Family
ID=45048429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101599929A Pending CN102265822A (en) | 2011-06-15 | 2011-06-15 | Wettable powder of chlorthal-dimethyl and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102265822A (en) |
-
2011
- 2011-06-15 CN CN2011101599929A patent/CN102265822A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 昆明工学院化工系有机组: "除草剂敌草索合成和药效初步试验", 《云南化工技术》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111207 |