CN105325405B - A kind of highly effective pesticide solvent and preparation method thereof - Google Patents

A kind of highly effective pesticide solvent and preparation method thereof Download PDF

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Publication number
CN105325405B
CN105325405B CN201510840470.3A CN201510840470A CN105325405B CN 105325405 B CN105325405 B CN 105325405B CN 201510840470 A CN201510840470 A CN 201510840470A CN 105325405 B CN105325405 B CN 105325405B
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parts
soybean oil
weight
epoxidized soybean
solvent
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CN105325405A (en
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张家滔
崔新政
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Cangzhou Dayang Chemical Co ltd
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CANGZHOU DAYANG CHEMICAL Co Ltd
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Abstract

The present invention relates to a kind of highly effective pesticide solvents comprising the component of following parts by weight:2 ~ 5 parts of methyl oleate, 2 ~ 5 parts of methyl linolenate, 6 ~ 8 parts of epoxidized soybean oil, 1 ~ 2 part of chiral pyrrolidine -2,5- diketone, 1 ~ 3 part of surfactant.The invention further relates to the methods for preparing above-mentioned highly effective pesticide solvent.The solvent environment of the present invention is friendly, synergistic effect is good.

Description

A kind of highly effective pesticide solvent and preparation method thereof
Technical field
The present invention relates to pesticide solvent technical fields, and in particular to a kind of highly effective pesticide solvent.
Background technology
Usually, the formulations of pesticide include mainly missible oil, aqueous emulsion, microemulsion and soluble liquid, in production process A large amount of such as toluene, dimethylbenzene organic solvent will be used.These organic solvents can dissolve pesticide original medicine, after adding water emulsification It sprays, but it is also only limited to dissolve, not only without generating better effect, brings pollution to environment instead.
Invention content
The object of the present invention is to provide the good highly effective pesticide solvents of a kind of environmental-friendly and synergistic effect.
The present invention adopts the following technical scheme that:
A kind of highly effective pesticide solvent comprising the component of following parts by weight:2 ~ 5 parts of methyl oleate, methyl linolenate 2 ~ 5 Part, 6 ~ 8 parts of epoxidized soybean oil, 1 ~ 2 part of chiral pyrrolidine -2,5- diketone, 1 ~ 3 part of surfactant.
Further, the surfactant is Tween-80.
Further, chiral pyrrolidine -2,5- diketone is maleimide and/or tartrimide.
Preferably, chiral pyrrolidine -2,5- diketone is maleimide and tartrimide, mass ratio 1: 1.
Further, the epoxidized soybean oil is made by enzyme process.
Further, the preparation method of the epoxidized soybean oil is:By soybean oil, lipase according to 100 parts by weight: 4 weights Part mixing is measured, stirring is warming up to 28 DEG C, keeps the temperature and instills 15 weight of hydrogenperoxide steam generator that mass fraction is 5% into mixture Part, continue after keeping the temperature and stirring 4 hours, centrifugation, alkali cleaning, washing are finally dried to obtain epoxidized soybean oil.
Preferably, the methyl oleate is 4 parts by weight, methyl linolenate is 4 parts by weight, epoxidized soybean oil is 7 weight Part, 0.5 parts by weight of maleimide, 0.5 parts by weight of tartrimide, Tween-80 are 2 parts by weight.
A method of the above-mentioned highly effective pesticide solvent of power being prepared, method is as follows:The each component for weighing the parts by weight, in 35 Stirring is to be sufficiently mixed at ~ 50 DEG C, after natural cooling to obtain the final product.
In preparation method, preferably 37 DEG C of mixing temperature.
The beneficial effects of the present invention are:
(1)Using the methyl esters of epoxidized soybean oil and pure natural vegetable oil as main component, avoid directly using pure The problem of oxidative rancidity, easily occurs for crude vegetal, is not only advantageous to dissolving pesticide, is also prevented from the organic solvents such as benzene to ring The injury in border and operator.
(2)Surfactant selects nonionic surfactant Tween-80, since Tween-80 is oleate, It is similar to methyl oleate, methyl linolenate, epoxidized soybean oil to mix, while the table of epoxidized soybean oil and vegetable oil solvent can be reduced Face tension increases emulsifying effectiveness, solubilization is played to pesticide.
(3)Chiral pyrrolidine -2,5- diketone and natural plants oil component and surfactant are synergistic, are more advantageous to agriculture The dispersion of medicine in a solvent improves pesticide efficacy.
(4)Each component is stirred mixing under thermal condition, is not only able to improve each component and dissolve each other effect, also help Improve the emulsifying effectiveness of surfactant.
(5)Epoxidized soybean oil is prepared using enzyme process, and local oxygen content can effectively be improved by instilling hydrogen peroxide, be improved Reaction rate.The too fast rate of release of oxygen caused by avoiding the instantaneous addition of a large amount of hydrogen peroxide simultaneously, and thus bring Hydrogen peroxide easily lead to enzyme inactivation and reaction be difficult to control the problems such as.
Specific implementation mode
The following describes the present invention in detail with reference to examples.The scope of the present invention is not limited to embodiment, this field Technical staff makes any change in the range of claim limits and also belongs to the scope of protection of the invention.
In the following example, used epoxidized soybean oil is prepared using enzyme process, and specific method is:Take soybean oil 100kg, lipase 4kg mixing, stirring are warming up to 28 DEG C, keep the temperature and instill matter into the mixture of above-mentioned soybean oil and lipase The hydrogenperoxide steam generator 15kg that score is 5% is measured, flow control needs to be stirred continuously, peroxidating in 7.5kg/h during instilling Hydrogen drips off subsequent continuation of insurance temperature and stirs 2 hours, and finally centrifugation, alkali cleaning, washing, drying, obtain epoxidized soybean oil.The lipase For Candida 99-125 lipase.
Embodiment 1
Methyl oleate 2kg, methyl linolenate 2kg, epoxidized soybean oil 6kg, maleimide 1.5kg, the Tween-80 is taken to be 1kg.Above-mentioned each component is stirred to be sufficiently mixed, after natural cooling at 35 DEG C to obtain the final product.
Embodiment 2
Take methyl oleate 5kg, methyl linolenate 5kg, epoxidized soybean oil 8kg, tartrimide 2kg, Tween-80 3kg. Above-mentioned each component is stirred to be sufficiently mixed, after natural cooling at 50 DEG C to obtain the final product.
Embodiment 3
To take methyl oleate be 4kg, methyl linolenate 4kg, epoxidized soybean oil 7kg, maleimide 0.5kg, winestone Acid imide 0.5kg, Tween-80 2kg.Above-mentioned each component is stirred to be sufficiently mixed, after natural cooling at 37 DEG C to obtain the final product.
Comparative example 1
To take methyl oleate be 4kg, methyl linolenate 4kg, epoxidized soybean oil 7kg.By above-mentioned each component at 37 DEG C Stirring is to be sufficiently mixed, after natural cooling to obtain the final product.
Comparative example 2
To take methyl oleate be 4kg, methyl linolenate 4kg, epoxidized soybean oil 7kg, Tween-80 2kg.It will be above-mentioned each Component is stirred to be sufficiently mixed, after natural cooling at 37 DEG C to obtain the final product.
Comparative example 3
To take methyl oleate be 4kg, methyl linolenate 4kg, epoxidized soybean oil 7kg, maleimide 0.5kg, winestone Acid imide 0.5kg, Tween-80 2kg.By above-mentioned each component in room temperature(20℃)Under be stirred to get.
1 product physical and chemical index of effect example(Table 1)
Table 1
As shown in table 1, each physical and chemical index of 1 ~ 3 products obtained therefrom of embodiment is superior to standard value, and epoxidized soybean oil is utilized Methyl esters with crude vegetal is as main component, in the control of acid value, is even measured again after 6 months, The acid value value of embodiment 1 ~ 3 remains unchanged up to standard and color also below 7, and therefore, the product of embodiment 1 ~ 3 passes through combination formula, association With the phenomenon that playing a role, effectively inhibiting oxidative rancidity.
2 preventive effect of effect example is tested
Reagent agent:4% nicosulfuron OF.
Trial crops:198 corn field of Henan.
Test process:Totally 3 processing, each processing are repeated 4 times, totally 12 cells(Random alignment)30 squares of plot area Rice, in the corn 3-5 leaf phases, the weeds 2-4 leaf phases carry out cauline leaf process, 80 milliliter/mu of pharmaceutical quantities, 30 kgs/acre of the amount of being watered.
2 effect research of table(It estimates within 15 days, claims fresh weight within 30 days)
As can be seen from Table 2, when making solvent with embodiment 1 ~ 3, drug effect significantly improves, and total preventive effect is not less than 96%.
Effect example 3
Select decis for reagent agent, the quality proportioning of solvent and medicament is 2: 1, and medicament is 0.02950 by dose Microgram/head.The result shows that embodiment 1 ~ 3 any one as solvent when, Mortality of insect be not less than 58%, and with comparative example 1 ~ 3 any one as solvent when, Mortality of insect not more than 35%, in contrast, the solvent of embodiment 1 ~ 3 is for pesticide Synergistic effect it is apparent.
In short, in conjunction with effect example 2 and effect example 3, makees solvent relative to corn oil or when comparative example 1 ~ 3 makees solvent, implement The drug effect of pesticide greatly improved in example 1 ~ 3, and synergistic is with obvious effects.
Effect example 4
Solvent described in embodiment 1 ~ 3 is subjected to volatility experiment, is compared with common light aromatic solvent, as a result such as table Shown in 3.
3 flash-point of table and volatility compare
As shown in Table 3, the more typical light aromatic solvent of the flash-point and volatility of embodiment 1 ~ 3 wants excellent, thus its It produces, in use, endangering performance small, conducive to pesticide efficacy to human body.
The present invention is described in detail according to the above embodiments.It should be noted that above embodiment is only for act Example illustrates invention.Under the premise of without departing from spirit and substance of the present invention, those skilled in the art can be designed that this The a variety of alternatives and improvement project of invention, should be understood within protection scope of the present invention.

Claims (1)

1. a kind of pesticide solvent, which is characterized in that it includes the component of following parts by weight:2 ~ 5 parts of methyl oleate, methyl linolenate 2 ~ 5 parts, 6 ~ 8 parts of epoxidized soybean oil, 1 ~ 2 part of chiral pyrrolidine -2,5- diketone, 1 ~ 3 part of surfactant;
The surfactant is Tween-80;Chiral pyrrolidine -2,5- the diketone is that maleimide and/or winestone acyl are sub- Amine;
The preparation method of the epoxidized soybean oil is:By soybean oil, lipase according to 100 parts by weight: the mixing of 4 parts by weight, stirring 28 DEG C are warming up to, keeps the temperature and is instilled into mixture 15 parts by weight of hydrogenperoxide steam generator that mass fraction is 5%, continue heat preservation simultaneously After stirring 4 hours, centrifugation, alkali cleaning, washing are finally dried to obtain epoxidized soybean oil;
The preparation method of the pesticide solvent is as follows:The each component for weighing the parts by weight is stirred at 35 ~ 50 DEG C with fully mixed It closes, after natural cooling to obtain the final product.
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CN1379068A (en) * 2001-03-29 2002-11-13 气体产品与化学公司 Low foaming N-alkyl-tartraimine and N-alkyl melicimine wetting agent
CN101755790A (en) * 2009-11-03 2010-06-30 深圳诺普信农化股份有限公司 Dispersible agent containing abamectin
CN102007915A (en) * 2010-11-17 2011-04-13 南京扬子鸿利源化学品有限责任公司 Synergistic oil solvent-containing ethyl missible oil herbicide and preparation method and application thereof
CN102132698A (en) * 2010-01-21 2011-07-27 中化化工科学技术研究总院 Green solvent for pesticide and application of green solvent
CN102239828A (en) * 2011-07-07 2011-11-16 湖北蕲农化工有限公司 Azadirachtin insecticide and preparation method thereof
CN104247722A (en) * 2014-05-30 2014-12-31 馥稷生物科技发展(上海)有限公司 Insecticide mate and preparation method thereof
CN105076132A (en) * 2015-06-11 2015-11-25 中国农业大学 Oil-based type pesticide synergistic auxiliary and preparation method therefor

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CN1379068A (en) * 2001-03-29 2002-11-13 气体产品与化学公司 Low foaming N-alkyl-tartraimine and N-alkyl melicimine wetting agent
CN101755790A (en) * 2009-11-03 2010-06-30 深圳诺普信农化股份有限公司 Dispersible agent containing abamectin
CN102132698A (en) * 2010-01-21 2011-07-27 中化化工科学技术研究总院 Green solvent for pesticide and application of green solvent
CN102007915A (en) * 2010-11-17 2011-04-13 南京扬子鸿利源化学品有限责任公司 Synergistic oil solvent-containing ethyl missible oil herbicide and preparation method and application thereof
CN102239828A (en) * 2011-07-07 2011-11-16 湖北蕲农化工有限公司 Azadirachtin insecticide and preparation method thereof
CN104247722A (en) * 2014-05-30 2014-12-31 馥稷生物科技发展(上海)有限公司 Insecticide mate and preparation method thereof
CN105076132A (en) * 2015-06-11 2015-11-25 中国农业大学 Oil-based type pesticide synergistic auxiliary and preparation method therefor

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