CN1448050A - Acetochlor microemulsion and prep.thereof - Google Patents
Acetochlor microemulsion and prep.thereof Download PDFInfo
- Publication number
- CN1448050A CN1448050A CN 02109437 CN02109437A CN1448050A CN 1448050 A CN1448050 A CN 1448050A CN 02109437 CN02109437 CN 02109437 CN 02109437 A CN02109437 A CN 02109437A CN 1448050 A CN1448050 A CN 1448050A
- Authority
- CN
- China
- Prior art keywords
- acetochlor
- solvent
- microemulsion
- emulsifier
- cosolvent
- 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
- VTNQPKFIQCLBDU-UHFFFAOYSA-N Acetochlor Chemical compound CCOCN(C(=O)CCl)C1=C(C)C=CC=C1CC VTNQPKFIQCLBDU-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000004530 micro-emulsion Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 12
- 239000006184 cosolvent Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 6
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical group CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 4
- 150000002576 ketones Chemical group 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 150000001298 alcohols Chemical group 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000002243 cyclohexanonyl group Chemical group *C1(*)C(=O)C(*)(*)C(*)(*)C(*)(*)C1(*)* 0.000 claims description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexyloxide Natural products O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 125000003944 tolyl group Chemical group 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 10
- 230000002363 herbicidal effect Effects 0.000 abstract description 8
- 239000004009 herbicide Substances 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 239000012263 liquid product Substances 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- 241000196324 Embryophyta Species 0.000 description 8
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- 239000002635 aromatic organic solvent Substances 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000000575 pesticide Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 4
- 230000003449 preventive effect Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 230000000857 drug effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 240000006995 Abutilon theophrasti Species 0.000 description 1
- 240000001592 Amaranthus caudatus Species 0.000 description 1
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 240000006122 Chenopodium album Species 0.000 description 1
- 235000009344 Chenopodium album Nutrition 0.000 description 1
- 208000035859 Drug effect increased Diseases 0.000 description 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- 206010067482 No adverse event Diseases 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 235000012735 amaranth Nutrition 0.000 description 1
- 239000004178 amaranth Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000593 microemulsion method Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001243 protein synthesis Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- YZHUMGUJCQRKBT-UHFFFAOYSA-M sodium chlorate Chemical compound [Na+].[O-]Cl(=O)=O YZHUMGUJCQRKBT-UHFFFAOYSA-M 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000014616 translation Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention belongs to herbicide, and relates to one micro emulsion of herbicide acetochlor and its preparation. The micro emulsion of herbicide acetochlor consists of acetochlor 10-70 wt%, solvent 5-20 wt%, cosolvent 5-20 wt%, emulsifier 5-35 wt% and water 10-70 wt%. The said components are mixed via stirring in a reactor to form homogeneous transparent liquid product. The present invention has the advantages of less environmental pollution and raised herbicidal effect.
Description
Technical field
The invention belongs to pesticide herbicide novel form field, what relate to is microemulsion of a kind of acetamide-group herbicides Acetochlor and preparation method thereof.
Background technology
The Acetochlor general formula is as follows: 2-ethyl-6-methyl-N-ethoxymethyl-2-chloro acetanilide:
Acetochlor acetochlor is the selectivity preemergence herbicide by the Monsanto.co of U.S. Monsanto Company research and development.Can be absorbed by the young shoot of weeds and young root, suppress the protein synthesis of weeds and make weeds death.Lasting period can reach about 2 months in soil.The existing how tame plant produced acetochlor oil of China, its product is cream preparation, the part moisture powder preparation.Cream preparation is main at present at home and abroad to adopt aromatic organic solvent to prepare.Because aromatic organic solvent, as toluene, dimethylbenzene, benzene etc., to the pollution problem of environment, environment department has monitored this kind solvent, using no or little aromatic organic solvent has become the direction that the formulations of pesticide are developed, and part developed country has forbidden missible oil class agricultural chemicals.And Acetochlor is the big output kind in the present weed killer herbicide agricultural chemicals, has every year ten thousand tons of acetochlor ec preparations of 8-10 to be employed approximately, and ten thousand tons of aromatic organic solvent benzene,toluene,xylenes of 4-5 etc. are wherein arranged approximately, spills to the soil.Increase on the ground the residual of noxious material in the crops, the ground pollution rivers,lakes and seas, the organic matter in the underground dnapl soil has polluted underground water source.And the water in the microemulsion will replace most aromatic organic solvent, and environmental pollution reduces greatly.In addition, missible oil class preparation is equipped with an amount of water and is prepared into spray liquor when using after, promptly become emulsion, the effective ingredient of agricultural chemicals is dissolved in the organic solvent, and emulsified process disperses to become very thin oil droplet, and its diameter is usually at 0.1～1.0 micron.And make the formulations of pesticide behind the microemulsion, spray liquor is made in water distribution when using, and forms true solution.Outward appearance is transparent or semitransparent shape, and pesticide active ingredient is emulsified to be separated into thinner particulate.Its diameter improves pesticide efficacy usually at 0.001～0.01 micron, and drug effect increases.
Summary of the invention
The objective of the invention is for provide a kind of with water substitute aromatic organic solvent, improve the fineness of Acetochlor in emulsion, to improve its herbicidal effect, to improve a kind of Acetochlor microemulsion of Acetochlor effective rate of utilization and preparation method thereof.
Technical solution of the present invention is that a kind of Acetochlor microemulsion by weight percentage, contains Acetochlor 10-70%, emulsifier 5-35%, solvent 5-20%, cosolvent 5-20%, water 10～70%;
Solvent is the fragrant same clan;
The aromatic series kind solvent is toluene, dimethylbenzene;
Solvent is a ketone;
Ketones solvent is a cyclohexanone;
Cosolvent is an alcohols;
Co-solvent is n-octyl alcohol, n-butanol, isobutanol, ethanol, methyl alcohol, ethylene glycol, polyethylene glycol;
Emulsifier is a non-ionic surface active agent;
Emulsifier is the surfactant of anionic;
A kind of preparation method of Acetochlor microemulsion, at first acetochlor oil and solvent and cosolvent with stirring and evenly mixing under the 60-80 rev/min of rotating speed, drop into the emulsifier for mixing mixing then, add water at last, stirred again 1-2 hour, become the product of homogeneous phase transparent.
Advantage of the present invention and good effect are:
1. reduced environmental pollution.Aromatic organic solvent content is generally 40～60% in the missible oil of conventional Acetochlor formulation, and only contains 5-20% in the microemulsion, reduced the usage amount of aromatic organic solvent, thereby reduced environmental pollution.
2. improved drug effect.The soup oil droplet fineness that conventional Acetochlor formulation missible oil is mixed with when spraying emulsion is the 0.1-1.0 micron, and the oil droplet fineness of the sprinkling emulsion that microemulsion is joined is the 0.001-0.01 micron.The emulsion of this moment has been transparent or semitransparent true solution.Thereby improved the degree of scatter of Acetochlor effective ingredient in emulsion, thus strengthened weeds to the Acetochlor absorbing capacity, increased drug effect.As follows through result of the test:
Annotate 1: microemulsion and missible oil are all with 300 times of water dilutions, and spray-on process is broadcast the preceding soil treatment of back seedling.Annotate 2: the experiment weeds are barnyard grass grass, three-coloured amaranth, lamb's-quarters, piemarker.
| 40% microemulsion | 50% missible oil | |||||
| Dosage/mu | ??200ml | ??300ml | ??400ml | ??200ml | ??300ml | ??400ml |
| The total preventive effect of strain number (%) | ??83.5 | ??90.2 | ??95.8 | ??77.9 | ??85.8 | ??92.5 |
| The total preventive effect of fresh weight (%) | ??85.2 | ??91.8 | ??96 | ??78.9 | ??89.1 | ??94.0 |
Experimental result shows: Acetochlor 40% microemulsion obviously is better than Acetochlor 50% missible oil to total preventive effect of weeds strain and the total preventive effect of fresh weight under the same amount condition, a drug can effectively be prevented and kill off corn field interior weeds breeding time, and corn growth is had no adverse effects, do not see poisoning.Because consumption reduces, substitute the part organic solvent with water again, factory cost also has reduction.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Example 1
With acetochlor oil 30kg, toluene 5kg, ethanol 8kg, in reactor, under normal temperature, mix jointly, add emulsifier 10kg then, complement to the 100kg stirring after 1.5 hours with water again, make it to become the solution product of homogeneous transparent.
Example 2
With acetochlor oil 40kg, dimethylbenzene 10kg, ethanol 5kg, isobutanol 5kg, the reactor that coexists is interior to mix under normal temperature, adds emulsifier 12kg then, complements to 100kg with water again, stirred again 1.5 hours, and made it to become the solution product of homogeneous transparent.
Example 3
With acetochlor oil 45kg, dimethylbenzene 10kg, ethanol 10kg, ethylene glycol 5kg, the reactor that coexists is interior to mix under normal temperature, adds emulsifier 12kg then, complements to 100kg with water again, stirred again 1.5 hours, and made it to become the solution product of homogeneous transparent.
Claims (10)
1. Acetochlor microemulsion, it is characterized in that, by weight percentage, contains Acetochlor 10-70%, emulsifier 5-35%, solvent 5-20%, cosolvent 5-20%, water 10～70%.
2. a kind of Acetochlor microemulsion according to claim 1 is characterized in that solvent is the fragrant same clan.
3. according to claim 1,2 described a kind of Acetochlor microemulsions, it is characterized in that the aromatic series kind solvent is a toluene.
4. a kind of Acetochlor microemulsion according to claim 1 is characterized in that solvent is a ketone.
5. according to claim 1,4 described a kind of Acetochlor microemulsions, it is characterized in that ketones solvent is a cyclohexanone.
6. a kind of Acetochlor microemulsion according to claim 1 is characterized in that cosolvent is an alcohols.
7. a kind of Acetochlor microemulsion according to claim 1 is characterized in that co-solvent is a n-octyl alcohol.
8. a kind of Acetochlor microemulsion according to claim 1 is characterized in that emulsifier is a non-ionic surface active agent.
9. a kind of Acetochlor microemulsion according to claim 1 is characterized in that emulsifier is the surfactant of anionic.
10. the method for preparing the described a kind of Acetochlor microemulsion of claim 1, it is characterized in that, at first acetochlor oil and solvent and cosolvent with stirring and evenly mixing under the 60-80 rev/min of rotating speed, drop into the emulsifier for mixing mixing then, add water at last, stirred again 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109437 CN1448050A (en) | 2002-04-04 | 2002-04-04 | Acetochlor microemulsion and prep.thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109437 CN1448050A (en) | 2002-04-04 | 2002-04-04 | Acetochlor microemulsion and prep.thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1448050A true CN1448050A (en) | 2003-10-15 |
Family
ID=28680433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02109437 Pending CN1448050A (en) | 2002-04-04 | 2002-04-04 | Acetochlor microemulsion and prep.thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1448050A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1886560A1 (en) * | 2006-08-05 | 2008-02-13 | Bayer CropScience AG | New microemulsifiable concentrates |
| CN116832684A (en) * | 2023-08-11 | 2023-10-03 | 江苏莱科作物保护有限公司 | Preparation system and preparation process of amide herbicide microemulsion |
-
2002
- 2002-04-04 CN CN 02109437 patent/CN1448050A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1886560A1 (en) * | 2006-08-05 | 2008-02-13 | Bayer CropScience AG | New microemulsifiable concentrates |
| WO2008017378A3 (en) * | 2006-08-05 | 2009-02-19 | Bayer Cropscience Ag | New microemulsifiable concentrates |
| CN116832684A (en) * | 2023-08-11 | 2023-10-03 | 江苏莱科作物保护有限公司 | Preparation system and preparation process of amide herbicide microemulsion |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |