CN101911933A - Cyhalofop-butyl microemulsion and preparation method thereof - Google Patents
Cyhalofop-butyl microemulsion and preparation method thereof Download PDFInfo
- Publication number
- CN101911933A CN101911933A CN2010102821387A CN201010282138A CN101911933A CN 101911933 A CN101911933 A CN 101911933A CN 2010102821387 A CN2010102821387 A CN 2010102821387A CN 201010282138 A CN201010282138 A CN 201010282138A CN 101911933 A CN101911933 A CN 101911933A
- Authority
- CN
- China
- Prior art keywords
- cyhalofop
- butyl
- microemulsion
- preparation
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses cyhalofop-butyl microemulsion and a preparation method thereof. The microemulsion comprises the components in percentage by weight: 1 to 50 percent of cyhalofop-butyl, 1 to 20 percent of solvent, 1 to 20 percent of cosolvent, 5 to 30 percent of emulsifier and 50 to 90 percent of water. The preparation method comprises the following steps of: uniformly stirring and mixing the solvent, the cosolvent and the cyhalofop-butyl according to the weight percentage at the rotation speed of 50 to 200 revolutions per minute; adding the emulsifier according to a required ratio, and uniformly stirring; and finally adding the water and continuously stirring for 1 to 2 hours to prepare a uniform and transparent solution product. The cyhalofop-butyl microemulsion is mainly used for preventing and controlling gramineous weeds such as caper euphorbia seed, echinochloa crusgalli, digitaria sanguinalis, paspalum distichum, setaria viridis, eleusine indica, alopecurus aequalis and the like in rice seedling field, direct seeding field and transplanting field. The microemulsion can effectively improve the use efficiency of the medicament, and reduce environmental pollution.
Description
Technical field
The present invention relates to a kind of agricultural chemicals Herbicidal microemulsion, relate to weed killer herbicide cyhalofop-butyl microemulsion and preparation method thereof specifically.
Background technology
The chemical name of compound cyhalofop-butyl is (R)-2-[4 (4-cyano group-2-fluorophenoxy) phenoxy group]-butyl propionate.
Its structural formula is:
The English general cyhalofop-butyl by name of cyhalofop-butyl, trade name a thousand pieces of gold.CAS number: 122008-85-9.
Cyhalofop-butyl is unique in the fragrant phenoxy propionic acid class weed killer herbicide paddy rice to be had the kind of tight security, it is interior suction conductivity weed killer herbicide, blade and leaf sheath by plant corpus absorb, the phloem conduction accumulates the meristem zone in plant corpus, suppresses acetyl-CoA carboxylase, fatty acid is synthesized to be stopped, the growth division of cell can not normally be carried out, and film system etc. contains the fat structural deterioration, causes plant death at last.The cyhalofop-butyl speed of action is slower, generally needs for 1～3 week made weeds death.In the paddy rice body, cyhalofop-butyl can be degraded to the diacid attitude to the acetyl-CoA carboxylase non-activity rapidly, thereby cyhalofop-butyl has the safety of height to paddy rice.Because cyhalofop-butyl is degraded in water and soil earth rapidly, to succession crop safety.
Cyhalofop-butyl is applicable to the various planting types of paddy rice (as non-irrigated seedling, watery ricenursery, live, rice transplanting, rice transplanting etc.), can not produce poisoning recommending under the consumption paddy rice to be used by seedling stage to the shooting stage.Cyhalofop-butyl is not only imitated various barnyard grass natural plant heights, also can prevent and treat grassy weeds such as moleplant seed, lady's-grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail.Because of cyhalofop-butyl is imitated above the average age for marriage barnyard grass natural plant height, and to rice safety, can be used as the later stage to remedy medication.
The cyhalofop-butyl formulation that is used at present to prevent and kill off paddy field weed on market mainly is a missible oil.The missible oil formulation mainly is to stir the formulations of pesticide that obtain by mixing such as cyhalofop-butyl, emulsifier and organic solvents.Because used organic solvent is more in the missible oil formulation, and is bigger to the wasting of resources, and easily environment polluted, usage amount is bigger relatively, causes the loss of pesticide active ingredient more.Missible oil is in process, because of using a large amount of organic solvents, the as easy as rolling off a log harm producer simultaneously.
No matter microemulsion all can not use a large amount of organic solvents in process of manufacture and in the use, reduced pollution to environment simultaneously thereby can reduce harm to the producer and user yet.
Summary of the invention
The purpose of this invention is to provide a kind of cyhalofop-butyl microemulsion and preparation method thereof, by replacing the preparation method of aromatic solvent to produce the microemulsion of cyhalofop-butyl with water, can improve cyhalofop-butyl in the fineness of emulsion, improve its herbicidal effect in actual applications, and improve the effective rate of utilization of cyhalofop-butyl simultaneously.Cyhalofop-butyl microemulsion of the present invention can effectively be prevented and kill off grassy weeds such as moleplant seed in rice seedling bed and live field, the transplant field, barnyard grass grass, lady's-grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail.
Its composition of microemulsion provided by the invention is as follows according to weight ratio:
Cyhalofop-butyl is 1-50%, solvent 1-20%, cosolvent 1-20%, emulsifier 5-30%, water 50%-90%.
Adoptable solvent has acetone, cyclohexanone, dimethyl formamide, toluene and composition thereof.Adoptable cosolvent has alcohols, and particularly low-molecular-weight alcohols is as methyl alcohol, ethanol, propyl alcohol, butanols, isobutanol, ethylene glycol, propane diols, octanol and composition thereof.
Adoptable surfactant has anion surfactant and non-ionic surface active agent.It comprises alkylsurfuric acid salt, alkyl sulfonic acid alkali metal salt and amido, dialkyl group succinate sodium sulfonate salt, alkylphenol polyoxyethylene formaldehyde condensation products sulfonate, sodium sulfate of polyethenoxy ether of fatty alcohol alkyl polyoxyethylene ether sulfate, alkylnaphthalene sulfonate, fatty acid or fatty acid ester sulphate, alkylphenol polyoxyethylene and fatty alcohol-polyoxyethylene ether etc.That can give an example has farming newborn 2000 series, lignosulfonates, NNO, a dispersing agent MF etc.
The preparation method of cyhalofop-butyl microemulsion of the present invention be according to weight ratio solvent, cosolvent, and cyhalofop-butyl under 50-200 rev/min rotating speed, mix, drop into the emulsifier of metering then, stir again, the water that adds metering at last, continue to stir 1-2 hour, can obtain cyhalofop-butyl microemulsion.
Alkynes grass ester provided by the invention has following beneficial effect:
1, reduced resource consumption, used organic solvent is more in the conventional missible oil formulation, and is bigger to the wasting of resources.
2, reduced environmental pollution, the missible oil formulation is used a large amount of organic solvents aborning, has in use caused the pollution of big gauging machine solvent to environment.And microemulsion adopts in process with the organic solvent in the water replacement missible oil, has reduced the pollution to environment.
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 cyhalofop-butyl microemulsion and preparation method thereof, it prepares earlier 2 kilograms of former medicines of cyhalofop-butyl, 5 kilograms of dimethyl formamides, 2 kilograms of n-butanols, 4 kilograms of non-ionic surface active agents, anion surfactant are as raw material.Then dimethyl formamide, n-butanol are mixed whole the adding in the reactor that has stirring, added the former medicine mixing of cyhalofop-butyl stir about again 1 hour, rotating speed is controlled at 50 rev/mins.Add non-ionic surface active agent again, anion surfactant continues to stir, and adds entry at last and complements to 20 kilograms, continue to stir 1 hour, makes it to become the homogeneous transparent solution product.
Embodiment 2:
A kind of cyhalofop-butyl microemulsion and preparation method thereof, it prepares earlier 1 kilogram of former medicine of cyhalofop-butyl, 3 kilograms of dimethyl formamides, 3 kilograms of isobutanols, 3 kilograms of non-ionic surface active agents, anion surfactant are as raw material.Then dimethyl formamide, n-butanol are mixed whole the adding in the reactor that has stirring, added the former medicine mixing of cyhalofop-butyl stir about again 1 hour, rotating speed is controlled at 100 rev/mins.Add non-ionic surface active agent again, anion surfactant continues to stir, and adds entry at last and complements to 20 kilograms, continue to stir 2 hours, makes it to become the homogeneous transparent solution product.
Claims (5)
1. cyhalofop-butyl microemulsion and preparation method thereof is characterized in that containing cyhalofop-butyl 1-50% according to percentage by weight, solvent 1-20%, cosolvent 1-20%, emulsifier 5-30%, water 50%-90%.
2. according to described a kind of cyhalofop-butyl microemulsion of claim 1 and preparation method thereof, it is characterized in that solvent is acetone, cyclohexanone, dimethyl formamide, toluene and composition thereof.
3. according to described a kind of cyhalofop-butyl microemulsion of claim 1 and preparation method thereof, it is characterized in that cosolvent is the low-molecular-weight alcohols, is methyl alcohol, ethanol, propyl alcohol, butanols, isobutanol, ethylene glycol, propane diols, octanol and composition thereof.
4. according to described a kind of cyhalofop-butyl microemulsion of claim 1 and preparation method thereof, it is characterized in that emulsifier is anion surfactant and non-ionic surface active agent.
5. the preparation method of cyhalofop-butyl microemulsion according to claim 1, it is characterized in that at first solvent, cosolvent and alkynes grass ester being mixed under 50-200 rev/min rotating speed, drop into emulsifier then, stir again, add entry at last and continue to stir 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102821387A CN101911933A (en) | 2010-09-15 | 2010-09-15 | Cyhalofop-butyl microemulsion and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102821387A CN101911933A (en) | 2010-09-15 | 2010-09-15 | Cyhalofop-butyl microemulsion and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101911933A true CN101911933A (en) | 2010-12-15 |
Family
ID=43319728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102821387A Pending CN101911933A (en) | 2010-09-15 | 2010-09-15 | Cyhalofop-butyl microemulsion and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101911933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265821A (en) * | 2011-06-16 | 2011-12-07 | 江苏维尤纳特精细化工有限公司 | Chlorthal-dimethyl micron emulsion and preparation method thereof |
| CN107787964A (en) * | 2017-04-25 | 2018-03-13 | 惠州市银农科技股份有限公司 | It is a kind of using cyhalofop-butyl as microemulsion of active ingredient and preparation method thereof |
-
2010
- 2010-09-15 CN CN2010102821387A patent/CN101911933A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265821A (en) * | 2011-06-16 | 2011-12-07 | 江苏维尤纳特精细化工有限公司 | Chlorthal-dimethyl micron emulsion and preparation method thereof |
| CN107787964A (en) * | 2017-04-25 | 2018-03-13 | 惠州市银农科技股份有限公司 | It is a kind of using cyhalofop-butyl as microemulsion of active ingredient and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102326549B (en) | Herbicidal composition containing mesotrione | |
| CN101965838A (en) | Herbicide composition and application thereof | |
| CN102318632A (en) | Synergistic weeding composition containing fluroxypyr | |
| CN102326574B (en) | Weeding composition containing florasulam and sulfonylurea | |
| CN102283203A (en) | Weeding composition containing mesotrione and fluroxypyr | |
| CN104255729A (en) | Pesticide composition containing propanil and cyhalofop-butyl and application of pesticide composition | |
| CN102428935A (en) | Oxadiargyl and butachlor aqueous emulsion and preparation method thereof | |
| CN103250722B (en) | A kind of composition pesticide containing bromoxynil octanoate | |
| CN101278683A (en) | Pollution-free plant source pesticide rotenone emulsifiable solution formulation and method of preparing the same | |
| CN101803598B (en) | Low-concentration fipronil bisamide suspension agent | |
| CN101965837B (en) | Herbicide composition and application thereof | |
| CN109197878A (en) | A kind of herbicidal composition and its preparation method and application containing paclobutrazol | |
| CN104904728A (en) | Pesticide combination containing flufenacet and pendimethalin and appliance thereof | |
| CN102265888A (en) | Weeding compound containing mesotrione and thifensulfuron methyl | |
| CN102273476B (en) | Pesticide composition containing bispyribac-sodium | |
| CN102258045A (en) | Weedicide composition containing rimsulfuron and bromoxynil octanoate | |
| CN101911933A (en) | Cyhalofop-butyl microemulsion and preparation method thereof | |
| CN103518755B (en) | Herbicide for paddy field isoproturon and manufacture method | |
| CN109938030A (en) | A kind of fluridone complex weedicide and preparation method thereof | |
| CN107306970A (en) | A kind of Herbicidal combinations comprising cyhalofop-butyl, metamifops and propanil | |
| CN101480187A (en) | Disinsection/miticide pharmaceutical composition | |
| CN106973957A (en) | A kind of dispersible oil-suspending agent containing the careless amine of fluorine ketone sulphur and cyhalofop-butyl | |
| CN107361066A (en) | A kind of Herbicidal combinations of Han You metamifops | |
| CN103688972A (en) | Herbicidal composition containing cyhalofop-butyl and cafenstrole | |
| CN101803601A (en) | Clodinafop-propargyl microemulsion and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |