CN102007915A - Synergistic oil solvent-containing ethyl missible oil herbicide and preparation method and application thereof - Google Patents
Synergistic oil solvent-containing ethyl missible oil herbicide and preparation method and application thereof Download PDFInfo
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- CN102007915A CN102007915A CN2010105471898A CN201010547189A CN102007915A CN 102007915 A CN102007915 A CN 102007915A CN 2010105471898 A CN2010105471898 A CN 2010105471898A CN 201010547189 A CN201010547189 A CN 201010547189A CN 102007915 A CN102007915 A CN 102007915A
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Abstract
The invention discloses a synergistic oil solvent-containing ethyl missible oil herbicide, and a preparation method and application thereof. The ethyl missible oil herbicide is prepared from 1 to 20 parts of ethyl, 5 to 50 parts of synergistic oil solvent, 5 to 35 parts of emulsifier and 0 to 50 parts of cosolvent. The ethyl missible oil provided by the invention has scientific and reasonable proportion of each component. Particularly, the oil solvent, which has high biodegradability, low toxicity, good environment compatibility, high flash point and safe storage and transportation, serves as the solvent of ethyl. The ethyl has high solubility and stability in the oil solvent. Compared with the traditional solvent, the ethyl missible oil has a low surface tension and a small contact angle; the drying time of a liquid medicine is obviously prolonged; the deposition amount of the medicament is increased; and the weed controlling effect of the ethyl can be improved. Compared with the traditional ethyl missible oil preparation, the ethyl missible oil herbicide provided by the invention has the advantages of short weed controlling time, long prevention and control period and low harm to environment and has better social and economic effect.
Description
Technical field
The present invention relates to a kind of Agrotechnical formulation, be specifically related to a kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent and preparation method thereof and its application.
Background technology
Quizalotop-ethyl is a kind of aryl phenoxy propionic acid class weed killer herbicide, Quizalotop-ethyl is a selective post-emergence herbicide, the Quizalotop-ethyl herbicide action principle is: absorb conduction by leaf, accumulate in the top, careless internode meristematic tissue is destroyed, lose regeneration capacity, stop growing and wither, be usually used in the grassy weed 3-5 leaf leaf phase control of crop associations such as various crop such as soybean, beet, rape, potato, flax, pea, broad bean, tobacco, watermelon, cotton, peanut, broad-leaved vegetables and fruit tree, forestry nursery, tending [after young plantation, clover.Advantages such as Quizalotop-ethyl mainly is processed into the cream preparation use in the prior art, and missible oil is one of basic formulation of agricultural chemicals, compares with other formulations, and it is simple to have composition and processing technology, and the preparation stored good stability is easy to use, and control efficiency is good.But contain low, the volatile petroleum aromatic class of a large amount of flash-points organic solvent in traditional Quizalotop-ethyl missible oil, as dimethylbenzene, toluene etc., therefore very inconvenient at aspects such as production, storing and uses, especially use easily contaminated environment of back.In recent years, a large amount of uses of agricultural chemicals commodity, organic solvent is more serious to the damage ratio of environment, along with the concern of people to food and Environmental security, the side-effect problem of organic solvent is paid much attention in the agricultural chemicals commodity, and because organic solvent content height in the Quizalotop-ethyl high activity emulsifiable concentrates for agricultural chemicals, the soaring Quizalotop-ethyl missible oil cost that makes of oil price improves.Therefore under the pressure of the pressure of environmental protection, resource and cost, the use of tradition aromatic hydrocarbon solvent is restricted gradually, so necessary easy degraded, environmental protection, reproducible non-petroleum-type solvent on the prior art basis, developed, as the active solvent as the Quizalotop-ethyl pesticide original medicine, but different solvents all is to influence the critical limitation factor that can this kind solvent promotion and application to the solvability of various former medicines such as Quizalotop-ethyl, cost with to safety of crop etc.
Summary of the invention
Goal of the invention: the objective of the invention is in order to solve the deficiencies in the prior art, but provide that harmful organic solvent usage amounts such as a kind of environmental protection, aromatic hydrocarbons are few, efficient, low toxicity, the long term storage of active ingredient Quizalotop-ethyl good stability, herbicidal effect better contains the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent, and another object of the present invention provides the preparation method of this Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent and it is as the application in the weed killer herbicide.
Technical scheme: in order to realize above purpose, the technical solution used in the present invention is:
A kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 1～20 part of Quizalotop-ethyl, 5～50 parts of synergy oil solvents, 5～35 parts of emulsifier, 0～50 part of cosolvent.
As preferred version, the above-described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 5～20 parts of Quizalotop-ethyls, 10～45 parts of synergy oil solvents, 20～35 parts of emulsifier, 10～45 parts of cosolvents.
As preferred scheme, the above-described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 10～20 parts of Quizalotop-ethyls, 25～45 parts of synergy oil solvents, 20～35 parts of emulsifier, 20～30 parts of cosolvents.
As preferred version, the above-described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, described synergy oil solvent is vegetable oil and/or mineral oil.As preferred scheme, above-described synergy oil solvent is methyl oleate, the different monooctyl ester of oleic acid, soybean oil, rapeseed oil, cottonseed oil, cocoa butter, a kind of in castor oil, turpentine oil, enriching vegetable oil, sunflower oil, peanut oil, olive oil, palm oil or the corn oil or their mixture, wherein further preferred methyl oleate, the different monooctyl ester of oleic acid and/or soybean oil.
Vegetable oil and mineral oil are big classes of grease, extensively be present in occurring in nature, resource is very abundant, and it has completely biodegradable, renewable, advantage such as toxicity is little, biological degradation is fast, Environmental compatibility is good, flash-point is high, storing is safe, has good social and ecological benefits.
The present invention is through the lot of experiments screening, preferably obtain partly or entirely to substitute the vegetable oil and the mineral oil of organic solvent in the Quizalotop-ethyl missible oil, the oil solvent that adopts the present invention preferably to obtain prepares cream preparation with the active component Quizalotop-ethyl, experimental result shows, has good materialization property, the every standard that meets cream preparation, and the higher solubility that adopts the preferred oil solvent of the present invention that the former medical instrument of active ingredient Quizalotop-ethyl is had, and compare with traditional organic solvent, oil solvent flash-point provided by the invention is higher, greater than 100 ℃, producing, compare safety in the storing, and a little less than the volatility, little to the producer and user's excitant, especially use the back very little to the pollution of environment.
As preferred version, the above-described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, wherein emulsifier is one or more the mixture in alkylphenol polyoxyethylene formaldehyde condensation products, PO-EO block polyether, polyoxyethylene laurel ether, polyoxyethylene nonylphenol ether, alkylaryl APEO, calcium dodecyl benzene sulfonate, neopelex or the Tween-80, as further preferred, emulsifier is selected for use wherein 2 to 3 kinds to be mixed with and is obtained.
The active component Quizalotop-ethyl is prepared cream preparation, the wherein bigger effect of emulsifier performance, suitable emulsifier can make oily medium be uniformly dispersed, and can increase the dissolubility and the stability of active component Quizalotop-ethyl, and the good emulsifying agent can increase the interior suction conduction in weeds of active component Quizalotop-ethyl, thereby increase herbicidal effect, the present invention is through lot of experiments, optimize the emulsifier that is fit to the Quizalotop-ethyl cream preparation, preferred alkyl phenol polyethenoxy ether formaldehyde condensation products, the PO-EO block polyether, polyoxyethylene laurel ether, polyoxyethylene nonylphenol ether, the alkylaryl APEO, calcium dodecyl benzene sulfonate, 2 to 3 kinds of mixed getting in neopelex or the Tween-80.
As preferred version, the above-described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, used cosolvent can be a kind of in cyclohexanone, acetone, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, dimethylbenzene or the toluene or their mixture, preferred dimethyl sulfoxide (DMSO), cyclohexanone or dimethylbenzene.
The preparation method who contains the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent provided by the invention, it may further comprise the steps:
Quizalotop-ethyl is dissolved in the mixed solvent of synergy oil solvent or synergy oil solvent and cosolvent at first in proportion, adds emulsifier then, stir, can make the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent.
The application of Quizalotop-ethyl emulsifiable solution herbicide in weeding that contains the synergy oil solvent of the present invention.
Beneficial effect: the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent provided by the invention is compared with prior art and is had the following advantages:
1. the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent provided by the invention, through a large amount of experiments the each component proportioning is screened, the gained Quizalotop-ethyl, the synergy oil solvent, each composition proportion of emulsifier and/or cosolvent is scientific and reasonable, especially the present invention adopts biological degradability good, renewable, toxicity is little, Environmental compatibility is good, the flash-point height, the oil solvent of storing safety is as the solvent of active component Quizalotop-ethyl, the solvability height of Quizalotop-ethyl in oil solvent, and the Quizalotop-ethyl cream preparation for preparing, every physicochemical character all meets standard, and show by experiment, oil solvent preferred for this invention is lower than the surface tension and the contact angle of the missible oil of conventional organic solvents preparation, significant prolongation drying time of soup, the deposition of medicament improves, can increase the herbicidal effect of active component Quizalotop-ethyl, the two is used and can plays certain synergy; Compare with conventional Quizalotop-ethyl cream preparation, Quizalotop-ethyl emulsifiable solution herbicide provided by the invention has that weeding is fast, and the control cycle is long, the advantage light to the harm of environment; And make the stability that can increase Quizalotop-ethyl behind the cream preparation, its degradation rate is lower, but long term storage, and more environmental protection, have good social and economic benefits.
2, the present invention screens and assembly the kinds of surface activating agent, optimize and be fit to the emulsifier that preparation contains the Quizalotop-ethyl cream preparation of synergy oil solvent, the every physicochemical character of preparation-obtained cream preparation all meets standard, and the structural stability height of active component Quizalotop-ethyl, resolution ratio is low, but long term storage, the convenient use, and after Quizalotop-ethyl is prepared into cream preparation, can improve Quizalotop-ethyl sees through the crop epidermis and enters plant inside, improve the systemic action and the permeability of Quizalotop-ethyl, thereby further play the effect of synergy.
Embodiment
According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand that the described concrete material proportion of embodiment, process conditions and result thereof only are used to illustrate the present invention, and should also can not limit the present invention described in detail in claims.
Embodiment 1
1, a kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 5 parts of Quizalotop-ethyls, 30 parts of methyl oleate synergy oil solvents, 45 parts of cosolvent dimethylbenzene, 20 parts of emulsifier, wherein emulsifier is by 4 parts of polyoxyethylene laurel ethers, and 9 parts of alkylaryl APEOs and 7 parts of calcium dodecyl benzene sulfonates mix to be formed.
2, contain the preparation of the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent: get in the dimethylbenzene that 5 parts of former medicines of Quizalotop-ethyl are dissolved in 30 parts methyl oleate solvent and 45 parts, fully after the dissolving, drop into again by 4 parts of polyoxyethylene laurel ethers, 9 parts of alkylaryl APEOs and 7 parts of emulsifier that calcium dodecyl benzene sulfonate is formed, stir, promptly obtaining outward appearance is the limpid transparent 5% Quizalotop-ethyl missible oil that contains the synergy oil solvent, Quizalotop-ethyl missible oil provided by the invention storage stability at low temperatures is good, preparation heat storage back outward appearance does not change, and former medicine resolution ratio only is about 2.0%.
Embodiment 2
1, a kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 10 parts of Quizalotop-ethyls, 45 parts of the different monooctyl ester synergy of oleic acid oil solvents, 25 parts of cosolvent cyclohexanone, 20 parts of emulsifier, wherein emulsifier is by 4 parts of PO-EO block polyethers, and 9 parts of alkylaryl APEOs and 7 parts of calcium dodecyl benzene sulfonates mix to be formed.
2, contain the preparation of the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent: get in the cyclohexanone that 10 parts of former medicines of Quizalotop-ethyl are dissolved in 45 parts the different monooctyl ester solvent of oleic acid and 25 parts, fully after the dissolving, drop into again by 4 parts of PO-EO block polyethers, 9 parts of alkylaryl APEOs and 7 parts of emulsifier that calcium dodecyl benzene sulfonate is formed, stir, promptly obtaining outward appearance is the limpid transparent 10% Quizalotop-ethyl missible oil that contains the synergy oil solvent, Quizalotop-ethyl missible oil provided by the invention storage stability at low temperatures is good, preparation heat storage back outward appearance does not change, and former medicine resolution ratio only is about 2.0%.
Embodiment 3
1, a kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 15 parts of Quizalotop-ethyls, 10 parts of soybean oil synergy oil solvents, 45 parts of cosolvent toluene, 30 parts of emulsifier, wherein emulsifier is by 10 parts of alkylphenol polyoxyethylene formaldehyde condensation products, and 14 parts of alkylaryl APEOs and 6 parts of neopelexes mix to be formed.
2, contain the preparation of the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent: get in the toluene that 15 parts of former medicines of Quizalotop-ethyl are dissolved in 10 parts soybean oil and 45 parts, fully after the dissolving, drop into again by 10 parts of alkylphenol polyoxyethylene formaldehyde condensation products, 14 parts of alkylaryl APEOs and 6 parts of emulsifier that neopelex is formed, stir, promptly obtaining outward appearance is the limpid transparent 15% Quizalotop-ethyl missible oil that contains the synergy oil solvent, Quizalotop-ethyl missible oil provided by the invention storage stability at low temperatures is good, preparation heat storage back outward appearance does not change, and former medicine resolution ratio only is about 2.0%.
Embodiment 4
1, a kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 18 parts of Quizalotop-ethyls, 25 parts of castor oil synergy oil solvents, 30 parts of cosolvent dimethyl formamides, 27 parts of emulsifier, wherein emulsifier is by 12 parts of Tween-80s, and 7 parts of calcium dodecyl benzene sulfonates and 8 parts of PO-EO block polyethers mix to be formed.
2, contain the preparation of the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent: get in the dimethyl formamide that 18 parts of former medicines of Quizalotop-ethyl are dissolved in 25 parts castor oil and 30 parts, fully after the dissolving, drop into again by 12 parts of Tween-80s, 7 parts of calcium dodecyl benzene sulfonates and 8 parts of emulsifier that the PO-EO block polyether is formed, stir, promptly obtaining outward appearance is the limpid transparent 18% Quizalotop-ethyl missible oil that contains the synergy oil solvent, Quizalotop-ethyl missible oil provided by the invention storage stability at low temperatures is good, preparation heat storage back outward appearance does not change, and former medicine resolution ratio only is about 2.0%.
Embodiment 5
1, a kind of Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent, it is to be made by the raw material of following parts by weight: 20 parts of Quizalotop-ethyls, 30 parts of rapeseed oils, 20 parts of cottonseed oils, 30 parts of emulsifier, wherein emulsifier is by 12 parts of polyoxyethylene laurel ethers, and 18 parts of calcium dodecyl benzene sulfonates mix to be formed.
2, contain the preparation of the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent: get in the cottonseed oil that 20 parts of former medicines of Quizalotop-ethyl are dissolved in 30 parts rapeseed oil and 20 parts, fully after the dissolving, drop into again by 12 parts of polyoxyethylene laurel ethers, 18 parts of emulsifier that calcium dodecyl benzene sulfonate is formed, stir, promptly obtaining outward appearance is the limpid transparent 20% Quizalotop-ethyl missible oil that contains the synergy oil solvent, Quizalotop-ethyl missible oil provided by the invention storage stability at low temperatures is good, preparation heat storage back outward appearance does not change, and former medicine resolution ratio only is about 2.0%.
Embodiment 6 prevents and kill off the grassy weed experiment of soybean field
Dispenser during the most of annual gramineous weed 3-4 in spring soybean field leaves, weeds in field is carried out the cauline leaf spraying, spray medicine after at 3 in afternoon, 5 processing are established in test altogether, per hectare is with Quizalotop-ethyl emulsifiable solution herbicide (embodiment 1 prepares) 600ml, 900ml, the 1200ml that contains the synergy oil solvent provided by the invention, commodity Quizalotop-ethyl missible oil per hectare 900ml; Other establishes clear water contrast, and above-mentionedly respectively handle equal four times and repeat, 20 square metres of sub-district areas, district's group is arranged at random.Concrete experimental result is as shown in table 1:
Table 1 Quizalotop-ethyl missible oil various dose group is prevented and kill off soybean field grassy weed result of the test
Result of the test by table 1 shows, the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent provided by the invention has good preventive effect to multiple grassy weeds such as soybean field green foxtail, lady's-grass, eleusine indica, dried gold, non-irrigated barnyard grasses, preventive effect is higher than the commodity Quizalotop-ethyl under equal consumption, and fool proof to soybeans they grow, tangible effect of increasing production is arranged.
Embodiment 7 prevents and kill off the experiment of rape Tanaka grassy weed
Dispenser during the most of annual gramineous weed 3-4 in rape field leaves, weeds in field is carried out the cauline leaf spraying, spray medicine after at 3 in afternoon, 5 processing are established in test altogether, per hectare is with Quizalotop-ethyl emulsifiable solution herbicide (embodiment 2 prepares) 600ml, 900ml, the 1200ml that contains the synergy oil solvent provided by the invention, commodity Quizalotop-ethyl missible oil per hectare 900ml; Other establishes clear water contrast, and above-mentionedly respectively handle equal four times and repeat, 20 square metres of sub-district areas, district's group is arranged at random.Concrete experimental result is as shown in table 2:
Table 2 Quizalotop-ethyl missible oil various dose group is prevented and kill off rape field grassy weed result of the test
Experimental result by table 2 shows, the Quizalotop-ethyl missible oil that contains the synergy oil solvent of various dose provided by the invention has good preventive effect to multiple grassy weeds such as rape Tanaka's green foxtail, lady's-grass, eleusine indica, dried gold, non-irrigated barnyard grasses, and preventive effect is better than the commodity Quizalotop-ethyl under equal consumption, and the rape seedling development is not had bad influence, have tangible effect of increasing production.
By above experimental result surface, the weed killer herbicide Quizalotop-ethyl missible oil that contains the synergy oil solvent provided by the invention, herbicidal effect is good, and faster than the weeding of conventional Quizalotop-ethyl missible oil, the control cycle is long, particularly select for use the little oil solvent of the harm of environment is partly or entirely substituted the active solvent of former organic solvent as the active component Quizalotop-ethyl, the environmental protection practicality, and the stability of active component Quizalotop-ethyl is better, and herbicidal effect is more superior, the scope of application is extensive, has good society and economic benefits.
Claims (9)
1. a Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent is characterized in that, it is to be made by the raw material of following parts by weight: 1 ~ 20 part of Quizalotop-ethyl, 5 ~ 50 parts of synergy oil solvents, 5 ~ 35 parts of emulsifier, 0 ~ 50 part of cosolvent.
2. the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent according to claim 1 is characterized in that, it is to be made by the raw material of following parts by weight: 5 ~ 20 parts of Quizalotop-ethyls, 10 ~ 45 parts of synergy oil solvents, 20 ~ 35 parts of emulsifier, 10 ~ 45 parts of cosolvents.
3. the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent according to claim 1, it is characterized in that it is to be made by the raw material of following parts by weight: 10 ~ 20 parts of Quizalotop-ethyls, 25 ~ 45 parts of synergy oil solvents, 20 ~ 35 parts of emulsifier, 20 ~ 30 parts of cosolvents.
4. according to each described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent of claim 1 to 3, it is characterized in that described synergy oil solvent is vegetable oil and/or mineral oil.
5. the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent according to claim 4, it is characterized in that, described synergy oil solvent is methyl oleate, the different monooctyl ester of oleic acid, soybean oil, rapeseed oil, cottonseed oil, cocoa butter, a kind of in castor oil, turpentine oil, enriching vegetable oil, sunflower oil, peanut oil, olive oil, palm oil or the corn oil or their mixture.
6. according to each described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent of claim 1 to 3, it is characterized in that described emulsifier is one or more the mixture in alkylphenol polyoxyethylene formaldehyde condensation products, PO-EO block polyether, polyoxyethylene laurel ether, polyoxyethylene nonylphenol ether, alkylaryl APEO, calcium dodecyl benzene sulfonate, neopelex or the tween-80.
7. according to each described Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent of claim 1 to 3, it is characterized in that described cosolvent is a kind of in cyclohexanone, acetone, dimethyl formamide, dimethyl sulfoxide (DMSO), N-methyl pyrrolidone, dimethylbenzene or the toluene or their mixture.
8. each described preparation method who contains the Quizalotop-ethyl emulsifiable solution herbicide of synergy oil solvent of claim 1 to 3 is characterized in that may further comprise the steps:
Quizalotop-ethyl is dissolved in the mixed solvent of synergy oil solvent or synergy oil solvent and cosolvent at first in proportion, adds emulsifier then, stir, can make the Quizalotop-ethyl emulsifiable solution herbicide that contains the synergy oil solvent.
9. each described Quizalotop-ethyl emulsifiable solution herbicide application in weeding that contains the synergy oil solvent of claim 1 to 3.
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| CN105360111A (en) * | 2015-11-27 | 2016-03-02 | 沧州大洋化工有限责任公司 | Environment-friendly emulsifiable concentrate and preparation method therefor |
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Application publication date: 20110413 |