CN1717993A - Quizalotop-ethyl herbicide microemulsion, and its prepn. method - Google Patents

Quizalotop-ethyl herbicide microemulsion, and its prepn. method Download PDF

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Publication number
CN1717993A
CN1717993A CN 200510041142 CN200510041142A CN1717993A CN 1717993 A CN1717993 A CN 1717993A CN 200510041142 CN200510041142 CN 200510041142 CN 200510041142 A CN200510041142 A CN 200510041142A CN 1717993 A CN1717993 A CN 1717993A
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China
Prior art keywords
quizalotop
ethyl
microemulsion
solvent
cosolvent
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CN 200510041142
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Chinese (zh)
Inventor
吴永虎
赵国平
赵邦斌
程小虎
王毅
王玉平
张帮林
陈克付
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赵邦斌
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Priority to CN 200510041142 priority Critical patent/CN1717993A/en
Publication of CN1717993A publication Critical patent/CN1717993A/en
Pending legal-status Critical Current

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Abstract

A herbiciding microemulsion of quizalofop-P-ethyl is prepared from quizalofop-P-ethyl (1-20 wt.%), solvent (1-20), cosolvent (1-10), surfactant (0.5-30), antifreezing agent (0.5-10) and water (rest). Its advantages are high effect and basically no environmental pollution.

Description

Quizalotop-ethyl herbicide microemulsion and preparation method thereof
Technical field: the present invention relates to a kind of annual and perennial grassy weed pesticidal preparations that is used to prevent and kill off, a kind of Herbicidal microemulsion that contains Quizalotop-ethyl and preparation method thereof of more specifically saying so.
Background technology: present Quizalotop-ethyl preparation is missible oil.Because cream preparation mainly adopts aromatic organic solvent to prepare, and in the aromatic organic solvent as toluene, dimethylbenzene, mixed toluene etc. because of environment being had certain pollution, therefore, environmental administration controls this kind solvent.Need not or lack the directionality technical policy that has become development missible oil class agricultural chemicals with aromatic organic solvent as far as possible; In addition, after the water distribution of missible oil class preparation is prepared into spray liquor, promptly become emulsion, pesticide active ingredient is dissolved in the organic solvent, in emulsion process, be emulsified into diameter usually at the thin oil droplet of 0.1-1.0 micron, and the oil droplet in this diameter range makes Quizalotop-ethyl can not give full play to its drug effect, causes its effective rate of utilization low.
Summary of the invention: technical problem to be solved by this invention is: provide a kind of and can give full play to its drug effect, and can effectively reduce environmental pollution or to free of contamination substantially Quizalotop-ethyl herbicide microemulsion of environment and preparation method thereof.Its technical scheme is: a kind of Quizalotop-ethyl herbicide microemulsion is characterized in that its raw material components and percentage by weight thereof:
Quizalotop-ethyl 1~20
Solvent 1~20
Cosolvent 1~10
Surfactant 0.5~30
Antifreezing agent 0.5~10
Water complements to 100;
Described Quizalotop-ethyl is the former medicine of Quizalotop-ethyl;
Described solvent is a kind of in toluene, dimethylbenzene, methyl alcohol, ethanol, isopropyl alcohol, acetone, cyclohexane, the dimethyl sulfoxide (DMSO) cyclohexanone or several;
Described cosolvent is that the youngster in isobutanol, n-butanol, ethylene glycol, glycerine, the poly-ethanol plants or a kind of;
Described surfactant is one or more in polyoxyethylene poly-oxygen propylene aether block copolymer, rope uncle SOPA, phenethyl phenol polyethenoxy ether formaldehyde condensation products, alkylphenol polyoxyethylene formaldehyde condensation products, neopelex, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, sorbitan fatty acid ester, polysorbate60, the basic phenol polyethenoxy base of suffering (ninth of the ten Heavenly Stems) ether.
Described antifreezing agent is one or more in ethylene glycol, glycerine, propane diols, polyethylene glycol, the sorbierite.
Its preparation method carries out as follows successively:
The active ingredient Quizalotop-ethyl is dissolved in solvent and the cosolvent;
Surfactant put in the above-mentioned solution that makes stir;
The above-mentioned solution that makes is put into again and mixed strongly in the homogenizer that dispersion medium water and antifreezing agent are housed and homogenize, obtaining outward appearance at last is limpid transparent Quizalotop-ethyl microemulsion.
Good effect of the present invention is:
Improved drug effect.It is the 0.1-1.0 micron that conventional cream preparation is mixed with its oil droplet fineness of sprinkling emulsion, and its oil droplet fineness of the sprinkling emulsion that microemulsion is joined is the 0.005-0.01 micron.Because the oil droplet that is narrower than 0.005 micron has approached true solution, so improved the dispersity of pesticide active ingredient Quizalotop-ethyl in emulsion, make emulsion approach true solution, thereby strengthened the penetrating ability of Quizalotop-ethyl, improved the effective rate of utilization of control efficiency and host plant.Through in the soybean field, herbicidal effect is carried out in the rape field and safety testing shows: its 5% smart Kui microemulsion 50,70,90,140ml/667m 2To soybean Tanaka's grassy weed, 10d behind medicine, its total strain preventive effect is respectively 89.2%, 92.2%, 93.7%, 95.9%; 30d behind the medicine, its total strain preventive effect is respectively 90.5%, 96.5%, 99.1%, 100% (asking for an interview smart Kui microemulsion soybean field herbicidal effect of annex 1-and safety testing).It is to rape Tanaka's grassy weed, 10d behind medicine, and its total strain preventive effect is respectively 57.0%, 62.5%, 65.6%, 70.3%; 40d behind the medicine, its total strain preventive effect is respectively 90.3%, 97.1%, 100%, 100% (asking for an interview smart Kui microemulsion rape field weeding effect of annex 2-5% and safety testing); And a drug is the harm of controlled soybean field and rape field annual gramineous weed.
Reduced environmental pollution.Aromatic organic solvent content is up to 65-80 in the conventional cream preparation, and only contains 0-30% in the microemulsion of the present invention, thereby reduced the aromatic organic solvent usage amount, reduced environmental pollution.Test shows: its 2-3 compound leaf phase cauline leaf and rape behind big bean seedlings are transplanted the back cauline leaf of turning green and are handled, and to soybean and growth of rape and bear pods and all have no adverse effects, safety is good.
Embodiment:
Embodiment 1.Get the former medicine 5kg of Quizalotop-ethyl, place the toluene solvant of 7kg and the isobutanol cosolvent of 5kg, the polyoxyethylene poly-oxygen propylene aether block copolymer surfactant of 15kg is dropped in the dissolving back, after stirring, solvent is put into again and mixed strongly in the homogenizer that 64kg dispersion medium water and 4kg ethylene glycol antifreeze are housed and homogenize, getting outward appearance is limpid 5% transparent Quizalotop-ethyl microemulsion.
Embodiment 2.Get the former medicine 10kg of Quizalotop-ethyl, place the methyl alcohol of 5kg and alcohol solvent and the n-butanol second of 3kg and the glycol cosolvent of 3kg of 5k g, the rope uncle SOPA of 10kg and the phenethyl phenol polyethenoxy ether formaldehyde condensation products surfactant of 7kg are dropped in the dissolving back, after stirring, again solvent is put in the homogenizer that 53kg dispersion medium water and 2kg glycerine and 2kg propane diols antifreezing agent are housed and is mixed strongly and homogenize, outward appearance be limpid 10% transparent Quizalotop-ethyl microemulsion.
Embodiment 3.Get the former medicine 15kg of Quizalotop-ethyl, place the isopropyl alcohol of 4kg, in the poly-ethanol cosolvent of the glycerine of the acetone of 4kg and the cyclohexane solvent of 4kg and 3kg and 2kg, the alkylphenol polyoxyethylene formaldehyde condensation products of 5kg is dropped in the dissolving back, the lauryl alcohol polyethylene glycol oxide base ether sodium sulfate surfactant of the neopelex of 5kg and 7kg, after stirring, again solvent is put in the homogenizer that 47kg dispersion medium water and 2kg polyethylene glycol and 2kg sorbierite antifreezing agent are housed and is mixed strongly and homogenize, outward appearance be limpid 15% transparent Quizalotop-ethyl microemulsion.
Embodiment 4.Get the former medicine 20kg of Quizalotop-ethyl, place the dimethyl sulfoxide (DMSO) ring solvent of 16kg and the n-butanol cosolvent of 6kg, the basic phenol polyethenoxy base of suffering (ninth of the ten Heavenly Stems) ether surface active agent of 17kg is dropped in the dissolving back, after stirring, solvent is put into again and mixed strongly in the homogenizer that 37kg dispersion medium water and 4kg propane diols antifreezing agent are housed and homogenize, getting outward appearance is limpid 20% transparent Quizalotop-ethyl microemulsion.

Claims (2)

1, a kind of Quizalotop-ethyl herbicide microemulsion is characterized in that its raw material components and percentage by weight thereof:
Quizalotop-ethyl 1~20
Solvent 1~20
Cosolvent 1~10
Surfactant 0.5~30
Antifreezing agent 0.5~10
Water complements to 100;
Described Quizalotop-ethyl is the former medicine of Quizalotop-ethyl;
Described solvent is a kind of in toluene, dimethylbenzene, methyl alcohol, ethanol, isopropyl alcohol, acetone, cyclohexane, the dimethyl sulfoxide (DMSO) cyclohexanone or several;
Described cosolvent is several or a kind of in isobutanol, n-butanol, ethylene glycol, glycerine, the poly-ethanol;
Described surfactant is one or more in polyoxyethylene poly-oxygen propylene aether block copolymer, rope uncle SOPA, phenethyl phenol polyethenoxy ether formaldehyde condensation products, alkylphenol polyoxyethylene formaldehyde condensation products, neopelex, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, sorbitan fatty acid ester, polysorbate60, the basic phenol polyethenoxy base of suffering (ninth of the ten Heavenly Stems) ether.
Described antifreezing agent is one or more in ethylene glycol, glycerine, propane diols, polyethylene glycol, the sorbierite.
2, the preparation method of a kind of Quizalotop-ethyl herbicide microemulsion according to claim 1 is characterized in that carrying out successively as follows:
The active ingredient Quizalotop-ethyl is dissolved in solvent and the cosolvent;
Surfactant put in the above-mentioned solution that makes stir; The above-mentioned solution that makes is put into again and mixed strongly in the homogenizer that dispersion medium water and antifreezing agent are housed and homogenize, obtaining outward appearance at last is limpid transparent Quizalotop-ethyl microemulsion.
CN 200510041142 2005-07-19 2005-07-19 Quizalotop-ethyl herbicide microemulsion, and its prepn. method Pending CN1717993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200510041142 CN1717993A (en) 2005-07-19 2005-07-19 Quizalotop-ethyl herbicide microemulsion, and its prepn. method

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Application Number Priority Date Filing Date Title
CN 200510041142 CN1717993A (en) 2005-07-19 2005-07-19 Quizalotop-ethyl herbicide microemulsion, and its prepn. method

Publications (1)

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CN1717993A true CN1717993A (en) 2006-01-11

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102125030A (en) * 2011-03-15 2011-07-20 广东中迅农科股份有限公司 Quizalofop-p-ethyl emulsion in water and preparation method thereof
CN102726414A (en) * 2012-06-29 2012-10-17 四川贝尔化工集团有限公司 Microemulsion containing fomesafen and quizalofop-p-ethyl, and preparation method thereof
CN101632353B (en) * 2009-08-18 2013-06-26 青岛星牌作物科学有限公司 Sodium dodecyl benzene sulfonate aqueous solution and preparation method thereof and application thereof
CN113016453A (en) * 2021-03-03 2021-06-25 浙江东郁广陈果业有限公司 Apple nursery weeding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101632353B (en) * 2009-08-18 2013-06-26 青岛星牌作物科学有限公司 Sodium dodecyl benzene sulfonate aqueous solution and preparation method thereof and application thereof
CN102125030A (en) * 2011-03-15 2011-07-20 广东中迅农科股份有限公司 Quizalofop-p-ethyl emulsion in water and preparation method thereof
CN102726414A (en) * 2012-06-29 2012-10-17 四川贝尔化工集团有限公司 Microemulsion containing fomesafen and quizalofop-p-ethyl, and preparation method thereof
CN113016453A (en) * 2021-03-03 2021-06-25 浙江东郁广陈果业有限公司 Apple nursery weeding method

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