WO2015100686A1 - 一种草甘膦胆碱原药、制剂及其制备方法 - Google Patents

一种草甘膦胆碱原药、制剂及其制备方法 Download PDF

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WO2015100686A1
WO2015100686A1 PCT/CN2014/000396 CN2014000396W WO2015100686A1 WO 2015100686 A1 WO2015100686 A1 WO 2015100686A1 CN 2014000396 W CN2014000396 W CN 2014000396W WO 2015100686 A1 WO2015100686 A1 WO 2015100686A1
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glyphosate
water
choline
weight
preparation
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PCT/CN2014/000396
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English (en)
French (fr)
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孙国庆
侯永生
吴勇
陈帅
姬广飞
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山东潍坊润丰化工股份有限公司
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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/12Powders or granules
    • A01N25/14Powders or granules wettable
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N57/00Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
    • A01N57/18Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
    • A01N57/20Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • C07C213/08Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions not involving the formation of amino groups, hydroxy groups or etherified or esterified hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/3804Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
    • C07F9/3808Acyclic saturated acids which can have further substituents on alkyl
    • C07F9/3813N-Phosphonomethylglycine; Salts or complexes thereof

Definitions

  • the present invention relates to a pesticide herbicide and a preparation method thereof, and in particular to a glyphosate choline drug, a water agent and a soluble granule Agents and their preparation methods.
  • Glyphosate is a non-selective, residue-free herbicide that is highly effective against perennial root weeds and is widely used in rubber, mulberry, tea, orchard and sugar cane fields. Glyphosate was originally used in rubber plantations to control thatch and other weeds.
  • Rubber trees are tapped 1 year earlier, and old rubber trees are increased. Now it is gradually used in forestry, orchards, mulberry gardens, tea gardens, rice, wheat, rice and rapeseed rotation sites. All kinds of weeds are sensitive to glyphosate, so the dosage is different, such as cockroach, foxtail, maiden, goosegrass, crabgrass, piglet and other annual weeds. The dosage is based on the active ingredient. 6 ⁇ 10.5 g/100m; The dosage of Psyllium chinensis, D. chinensis, and Eimeria gracilis is 11.4 ⁇ 15g/100m according to the active ingredient ; the dosage of D. chinensis, Dendrobium, Reed, etc. is 18 ⁇ 30g/ 100m. Glyphosate is generally used in water, and it can be evenly sprayed on the stems and leaves of the weeds.
  • the main dosage form of glyphosate is its water agent.
  • the water agent is an environmentally friendly dosage form, the general content is low, which increases the transportation and packaging costs.
  • market demand is becoming more and more abundant, and product competition is becoming more and more fierce. It is a must to develop a better dosage form.
  • the technology related to glyphosate choline and its preparation has not been reported yet.
  • the present invention provides a glyphosate choline drug which is more effective than glyphosate in terms of less deficiency of glyphosate preparations today, and is more environmentally friendly than glyphosate, has low volatility, and diffuses and drifts. Less, easy to operate and mix.
  • the invention also provides a preparation method of the glyphosate choline original drug, which has simple steps and is convenient for operation.
  • the present invention also provides a water-soluble granule and a water agent of the glyphosate choline.
  • the invention also provides a method for preparing a water-soluble granule and a water agent of glyphosate choline.
  • the preparation method of the glyphosate choline original drug of the invention comprises the steps of: reacting glyphosate and choline in an aqueous environment, and the reaction solution is concentrated under reduced pressure, cooled and crystallized, washed and dried to obtain glyphosate. medicine.
  • the reaction temperature is 45 to 55 Torr.
  • the molar ratio of glyphosate to choline is 1: 0.95 - 1.5, preferably 1 : 1.1 - 1.3, and further preferably 1: 1.0 - 1.05.
  • choline is added in the form of an aqueous solution of choline, and the mass percentage of choline in the aqueous solution of choline is 40-80%.
  • reaction time of glyphosate with choline is 15 to 65 min, preferably 15 to 45 min.
  • the aqueous solution when concentrated under reduced pressure, the aqueous solution is concentrated to a boiling point of 125-135 under a pressure of -0.08 to -0.09 MPa.
  • the temperature when the temperature is lowered and crystallized, the temperature is lowered to 40 to 50 ° C for crystallization.
  • the present invention also provides a preparation of the above glyphosate choline, which comprises a pharmaceutically active ingredient and an adjuvant in the preparation.
  • the glyphosate choline of the present invention is used as a pharmaceutical active ingredient in an amount of 5 to 95% by weight, preferably 15 to 90% by weight, further preferably 35 to 90% by weight, most preferably 55 to 90% by weight, most preferably 55. -80wt%.
  • the above-mentioned formulation of the present invention is preferably a water agent or a water-soluble granule.
  • the auxiliary materials used are auxiliary agents and water-soluble fillers
  • the auxiliary content is 2.0 to 15.0% by weight, preferably 5 to 10% by weight
  • the water-soluble filler is 100% by weight. According to the content of glyphosate choline, the appropriate amount of excipients can be selected.
  • the auxiliary material used is an auxiliary agent and water
  • the auxiliary content is 5.0 to 25.0% by weight, preferably 10 to 15% by weight, and water is 100% by weight.
  • the appropriate amount of excipients can be selected.
  • the water-soluble granule of the present invention is preferably composed of the following ratios of glyphosate choline and an auxiliary material: glyphosate choline 55 to 80% by weight, an auxiliary agent 5 to 10% by weight, and a water-soluble filler to make up 100% by weight.
  • aqueous preparation of the present invention is preferably composed of the following ratios of glyphosate choline and an auxiliary material: glyphosate choline 55 to 80% by weight, an auxiliary agent 10 to 15% by weight, and water to make up 100% by weight.
  • the auxiliary agents used are phthalamide-based taurates, polyoxyethylene fatty acid esters, fatty alcohol polyoxyethylene ethers, polyoxyethylene fatty amines, ethoxylated castor oil, fatty acids.
  • One or more of oxyethylene ether sulfate ammonium salt, decyl diphenyl ether disulfonate magnesium salt and triethanolamine salt are preferably fatty alcohol polyoxyethylene ethers.
  • the water-soluble fillers used are water-soluble inorganic salts including sulfates, nitrates, hydrochlorides, carbonates, hydrogencarbonates, phosphates, dihydrogen phosphates, dihydrogen phosphates, borates and silicates.
  • the preparation method of the glyphosate choline water-soluble granule of the invention is as follows: firstly, the glyphosate choline original drug is prepared according to the above method, and then the glyphosate choline original drug and the auxiliary material are thoroughly mixed in the kneader, and after mixing Adding the total mass of the mixture
  • the preparation method of the glyphosate choline water agent of the invention is as follows: Firstly, the glyphosate choline original drug is prepared according to the above method, and then the glyphosate choline original drug and the auxiliary material are mixed, added with water to 100%, and then at 50 Stir at -60 °C for 30-60 min, and cool down to obtain glyphosate choline water.
  • the herbicidal effect is better when a certain auxiliary agent is added as an auxiliary material. If the drug content is too high, for example, 95% or more, the amount of the auxiliary agent added is small, which may affect the herbicidal effect.
  • the water-soluble inorganic salt used may be mixed in any ratio.
  • the preparation method of the glyphosate choline original drug of the invention and the preparation thereof has the following advantages:
  • the method is simple, economical, safe, easy to obtain raw materials, no hazardous chemicals are used in the whole production process, no organic solvent is needed, no waste is discharged, environmental protection is good, easy to control and operate, high safety factor, high scale application value .
  • the glyphosate choline drug prepared by the method has the same efficacy and environmental advantages as glyphosate, but has other advantages, such as low volatility, less diffusion and drift, easy to operate and mix, The application time is more extensive.
  • the preparation of the original drug is high in purity and can be used to configure different types of preparations, and in particular, it can be formulated with a high drug content.
  • the glyphosate choline original drug prepared by the method and the preparation thereof are not only stable in physical and chemical properties, but also have high water solubility in the original drug and the preparation, and can be formulated with a drug with high drug content, and the preparation is subjected to heat and extrusion without deformation and stability. Strong.
  • the glyphosate choline drug and its preparation prepared by the method have no dust during processing, production and use, have less environmental pollution, and have less harm to producers and users.
  • the glyphosate choline original drug prepared by the method and the preparation thereof have good fluidity, no stick wall, reduce environmental pollution, good fluidity, and are easy to package and measure.
  • the glyphosate choline original drug prepared by the method and the preparation thereof have simple requirements on the packaging materials, and the water agent generally adopts the PE barrel which is more common in texture as the packaging material, and the original drug and the water-soluble granule only need to be compared.
  • aqueous choline solution 50% choline content
  • 1000 g of glyphosate 97% were added and stirred for reaction.
  • the heat is released, the reaction temperature is quickly raised to 45 ° C, stirring is continued and the reaction is carried out at 46 to 50 ° C for 30 min.
  • the obtained aqueous solution can be used as a glyphosate choline water agent, but because glyphosate choline is in the absence of additives.
  • the reaction solution is generally prepared to prepare glyphosate, and the reaction solution is: the reaction solution is concentrated under a pressure of -0.08 ⁇ -0.09Mpa, and concentrated to the boiling point. When it was 125 ⁇ , it was stopped, and then the temperature was lowered to 40 ⁇ for crystallization. After crystallization, filtration, washing, and 60 drying, 1591 g of glyphosate was obtained, and the content of glyphosate was 98.1%.
  • Example 1-2 the reaction solution is concentrated under a pressure of -0.08 ⁇ -0.09Mpa, and concentrated to the boiling point. When it was 125 ⁇ , it was stopped, and then the temperature was lowered to 40 ⁇ for crystallization. After crystallization, filtration, washing, and 60 drying, 1591 g of glyphosate was obtained, and the content of glyphosate was 98.1%.
  • Example 1-2 the reaction solution is concentrated under a pressure of -0.08 ⁇ -0.09Mpa, and concentrated to the
  • aqueous choline solution (60% choline content) and 1000 g of glyphosate (97%) were added and stirred for reaction.
  • the heat is released, the reaction temperature is quickly raised to 45 ° C, stirring is continued and the reaction is carried out at 47 to 51 ° C for 35 min.
  • the obtained aqueous solution can be used as a glyphosate choline water agent, since glyphosate choline is in the absence of additives.
  • the reaction solution is generally prepared to prepare glyphosate, and the reaction solution is: the reaction solution is concentrated under a pressure of -0.08 ⁇ -0.09Mpa, and concentrated to a boiling point of 130 ⁇ .
  • the temperature was lowered to 45 Torr for crystallization, and after crystallization, filtration, washing, and drying at 60 ° C, 1609 g of glyphosate was obtained, and the content of glyphosate was 98.0% in the original drug.
  • aqueous choline solution 70% choline content
  • 1000 g of glyphosate 97% were added and stirred for reaction.
  • the heat is released, the reaction temperature is quickly raised to 45 ⁇ , stirring is continued and the reaction is carried out at 48-52 ° C for 45 min.
  • the obtained aqueous solution can be used as a glyphosate choline water agent, because the glyphosate choline is weeded without additives.
  • the reaction solution is generally prepared to prepare glyphosate
  • the reaction solution is: the reaction solution is concentrated under the pressure of -0.08 ⁇ -0.09Mpa, and concentrated to a boiling point of 130 ⁇ After stopping, the temperature was lowered to 50 ° C for crystallization, and after crystallization, filtration, washing, and drying at 60 ° C, 1625 g of glyphosate was obtained, and the content of glyphosate in the original drug was 97.8%.
  • the glyphosate choline drug was prepared according to the method of Example 1-2, and the reaction parameters were added according to the following table.
  • the obtained glyphosate drug was as follows:
  • the water-soluble granule formulation is (wt%): glyphosate 80%, fatty alcohol polyoxyethylene ether 5%, and the sulphate preparation method is as follows: 815 g of the glyphosate choline prepared in Example 1-1 is taken. The original drug (content is 98.1%), the fatty alcohol polyoxyethylene ether is added according to the ratio, and the sulfate is added to 100%. After the components are sufficiently uniformly mixed in the kneader, 20% of the total mass of the mixture is added.
  • the water-soluble granule formulation is (wt%): 55% glyphosate, 10% fatty alcohol polyoxyethylene ether, and the preparation method of the sulfate is: 561 g of glyphosate prepared in Example 1-1
  • the original drug content is 98.1%
  • the fatty alcohol polyoxyethylene ether is added according to the ratio, and the sulfate is added to 100%. After the components are sufficiently uniformly mixed in the kneader, 30% of the total mass of the mixture is added.
  • the water-soluble granule formula is (wt%): 65% glyphosate, 7.5% fatty alcohol polyoxyethylene ether, sulfate residue
  • the preparation method is as follows: 663 g of the original glyphosate prepared by the method of Example 1-1 (content: 98.1%), the fatty alcohol polyoxyethylene ether is added according to the ratio, and the sulfate is added to 100%, and each group is prepared. After fully mixing uniformly in the kneading, the mixture is kneaded by adding 1% of the total mass of the mixture, kneaded at 95 ° C, and dried under 55 , to obtain 65% glyphosate choline water-soluble. Granules, the obtained water-soluble granules have a high granulation rate, above 99%, and the granules are round, full and not easy to loose.
  • the formulation of the water agent is (wt%): 80% glyphosate, 12.5% fatty alcohol polyoxyethylene ether, water balance.
  • the preparation method comprises the following steps: taking 815 g of the glyphosate choline original drug of Example 1-1 (content: 98.1%), and adding according to the ratio The fatty alcohol polyoxyethylene ether was made up to 100% with water, and the components were stirred at 52-58 Torr for 45 min. After cooling, the 80% glyphosate choline aqueous solution was prepared.
  • the formulation of the water agent is (wt%): 55% glyphosate, 10.0% fatty alcohol polyoxyethylene ether, water balance.
  • the preparation method comprises the following steps: taking 561 g of the glyphosate choline original drug of Example 1-1 (content: 98.1%), adding fatty alcohol polyoxyethylene ether according to the ratio, supplementing with water to 100%, and each component at 53-57 ⁇ The mixture was stirred for 20 minutes, and after cooling, 55% glyphosate choline water was prepared.
  • the formulation of the water agent is (wt%): 60% glyphosate, 15% fatty alcohol polyoxyethylene ether, water balance.
  • the preparation method comprises the following steps: taking 612 g of the glyphosate choline original drug of Example 1-1 (content: 98.1%), adding fatty alcohol polyoxyethylene ether according to the ratio, supplementing with water to 100%, and each component at 54-58 ⁇ The mixture was kept warm for 40 minutes, and after cooling, 60% glyphosate choline water was prepared.
  • a water preparation was prepared in accordance with the method of Example 3-1, and the reaction parameters were added according to the following table:
  • Example 2-1 23 38 8.0 0.05 0 0
  • Example 2-2 21 37 7.9 0.06 0 0
  • Example 2-3 22 38 8.1 0.08 0 0
  • Example 2-4 25 41 7.9 0.21 0.005 0
  • Example 2 -5 28
  • 42 8.0 0.15 0.01 0
  • Example 2-6 26
  • 42 7.6 0.20 0.006 0
  • Example 2-7 26
  • 40 8.1 0.18 0.005 0
  • Example 2-8 27 41 8.0 0.17 0.004 0
  • Example 2-9 26
  • Example 2-10 27 41 7.9 0.15 0.007 0
  • Example 2-11 22 38 8.0 0.07 0 0 3.
  • the aqueous agents obtained in Examples 3-1 to 3-10 were subjected to performance tests, and the results are shown in Table 3.
  • Example 2 Using the 80% glyphosate choline water-soluble granule obtained in Example 2-1 as an example, the herbicidal effect of the product of the present invention was studied.
  • Test Agent 80% glyphosate choline water-soluble granules obtained in Examples 2-1 of the present invention.
  • Control agent 74.7% glyphosate ammonium salt soluble granules, registration number PD20097137, Shandong Weifang Runfeng Chemical Co., Ltd. production.
  • the experimental citrus orchard in Yunlong Town, Haikou City, Hainan province was selected as the experimental area.
  • the citrus orchard was planted for four years and has been put into operation.
  • the variety is Hongjiang Orange, the weed coverage is about 65%, the grass height is 4-6cm, and the growth is strong. Young and tender.
  • the main weeds are: Digitavia dscenders, E leusine indicacc L., Ageratam conyzoides L., Solanum nigrum L., Marmot (Echinochloacrusgalli (L.) Beau v. Var.) o
  • test area was divided into 20 test plots according to the following table. The area of each test plot was '40 m 2 . Each test plot was applied with the medicaments described in Table 4 above according to the marker group. The test area is shown in Table 5. Table 5
  • the test site is red loam soil, with a pH of about 5.8.
  • the number of weeds was investigated once every 15 days and 30 days after the drug, and the fresh weight of weeds was measured 30 days after the drug.
  • the formula for calculating the efficacy is as follows:
  • the difference saliency was analyzed by Duncan's new complex range (DM T ) method.
  • the agent 1 represents 80% glyphosate choline water-soluble granules 600 g / ha
  • the agent 2 represents 80% glyphosate choline water-soluble granules 1200 g / ha
  • the agent 3 represents 80% Glyphosate choline water-soluble granules 1800 g / ha
  • Pharmacy 4 means 80% glyphosate choline water-soluble granules 2000 g / ha
  • Pharmacy 5 means 74.7% glyphosate ammonium salt soluble granules 2241 g / ha .
  • Table 6 Control effect on weed plant number (%) - 15 days after application
  • each preparation can effectively control all kinds of weeds in the field according to the effective ingredient of 2000 g / ha.
  • the present invention is excellent in the effect of the water-soluble granules obtained by the selection of the auxiliary agent.

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Abstract

公开了一种草甘膦胆碱原药、制剂及其制备方法,剂型可以为水剂和水溶性粒剂,制剂中草甘膦胆碱的含量为5-95wt%,优选为15-90wt%,进一步优选为35-90wt%,最优选为55-90wt%,最最优选为55-80wt%。所述草甘膦胆碱原药和制剂物化性质稳定,水溶性高,制剂受热和挤压不变质变形,稳定性强。所述草甘膦胆碱原药的制备方法简单、环保。

Description

一种草甘膦胆碱原药、 制剂及其制备方法 技术领域 本发明涉及一种农药除草剂及其制备方法, 具体地说是涉及一种草甘膦胆碱原药、 水剂和可溶性粒剂以及它们的制说备方法。 背景技术 草甘磷是一种非选择性、 无残留灭生性除草剂, 对多年生根杂草非常有效, 广泛用 于橡胶、 桑、 茶、 果园及甘蔗地。 草甘膦最初应用于橡胶园防除茅草及其他杂草, 可使 书
橡胶树提早 1年割胶, 老橡胶树增产, 现逐步推广用于林业、果园、 桑园、茶园, 稻麦、 水稻和油菜轮作地等地方。 各种杂草对草甘膦的敏感程度不同, 因而用药量也不同, 如 稗、狗尾草、看麦娘、牛筋草、马唐、猪殃殃等一年生杂草,用药量以有效成分计为 6〜 10.5 g/100m; 车前子、小飞蓬、鸭跖草等用药量以有效成分计为 11.4〜15g/100m; 白茅、 硬骨草、 芦苇等用药量以有效成分计则需 18〜30g/100m。 草甘膦一般兑水使用, 施药 时对杂草茎叶均匀定向喷雾即可。
目前草甘磷主要剂型为其水剂,水剂虽然属于环境友好型剂型,但是普遍含量偏低, 增加了运输、 包装成本。 如今市场需求日益丰富, 产品竞争日益剧烈, 开发出其更好的 剂型势在必得。 据了解, 有关草甘膦胆碱原药及其制剂的技术目前还未见报道。 发明内容 本发明针对现今草甘膦制剂较少的不足, 提供一种草甘膦胆碱原药, 该原药与草甘 膦药效相当, 比草甘膦更加环保, 挥发性低, 扩散飘移较少, 易于操作和混配。
本发明还提供了该草甘膦胆碱原药的制备方法, 该方法步骤简单, 便于操作。 本发明还提供了该草甘膦胆碱的水溶性粒剂和水剂。
本发明还提供了草甘膦胆碱的水溶性粒剂和水剂的制备方法。
本发明是通过以下技术方案实现:
一种草甘膦胆碱, 其特征是结构式为:
Figure imgf000003_0001
本发明草甘膦胆碱原药的制备方法, 步骤为: 将草甘膦和胆碱在水环境下反应, 反 应液经过减压浓缩、 降温结晶、 洗涤烘干, 得草甘磷胆碱原药。
上述方法中, 反应温度为 45〜55Ό。
上述方法中, 草甘膦与胆碱的摩尔比为 1 : 0.95-1.5, 优选为 1 : 1.1-1.3, 进一步优 选为 1: 1.0-1.05。
上述方法中, 胆碱以胆碱水溶液的形式加入, 胆碱水溶液中胆碱的质量百分含量为 40-80%。
上述方法中, 草甘膦与胆碱的反应时间为 15~65min, 优选为 15~45min。
上述方法中,减压浓缩时,在 -0.08〜- 0.09Mpa的压力下将水剂浓缩至沸点为 125-135
。C。
上述方法中, 降温结晶时, 温度降至 40— 50°C进行结晶。
本发明还提供了上述草甘膦胆碱的制剂, 在制剂中, 包括药物有效成分和辅料。 其 中, 本发明草甘膦胆碱作为药物有效成分, 其含量为 5~95wt%, 优选为 15~90wt%, 进 一步优选为 35~90wt%, 最优选为 55~90wt%, 最最优选为 55-80wt%。
本发明上述所指制剂, 优选为水剂或水溶性粒剂。
水溶性粒剂时, 所用辅料为助剂和水溶性填料, 助剂含量 2.0~15.0wt%, 优选为 5-10wt%,水溶性填料补足 100wt%。可以根据草甘膦胆碱的含量,选择合适的辅料用量。
水剂时, 所用辅料为助剂和水, 助剂含量 5.0~25.0wt%, 优选为 10-15wt%, 水补足 100wt%。 可以根据草甘膦胆碱的含量, 选择合适的辅料用量。
本发明水溶性粒剂中, 优选由以下配比的草甘膦胆碱和辅料组成: 草甘磷胆碱 55~80wt%, 助剂 5-10wt%, 水溶性填料补足 100wt%。
本发明水剂中,优选由以下配比的草甘膦胆碱和辅料组成: 草甘磷胆碱 55~80wt%, 助剂 10-15wt%, 水补足 100wt%。
本发明水溶性粒剂和水剂中, 所用助剂为垸酰胺基牛磺酸盐、 聚氧乙烯脂肪酸酯、 脂肪醇聚氧乙烯醚、 聚氧乙烯脂肪胺、 乙氧基蓖麻油、 脂肪酸聚乙二醇酯、 垸基酚聚氧 乙烯醚、聚氧乙烯聚氧丙烯醚 (PO-EO)、脂肪胺聚氧乙烯醚、 聚氧乙烯聚氧丙烯羧酸盐、 壬基酚聚氧乙烯醚、 环氧乙烷-环氧丙烷嵌段共聚物、 十二垸基硫酸钠、 十二垸基苯磺 酸钠、 壬基酚聚氧乙烯醚硫酸盐、 苯乙烯聚氧乙烯醚硫酸铵盐、 垸基联苯醚二磺酸镁盐 和三乙醇胺盐中的一种或多种, 优选为脂肪醇聚氧乙烯醚。
所用的水溶性填料为水溶性无机盐, 包括硫酸盐、 硝酸盐、 盐酸盐、 碳酸盐、 碳酸 氢盐、 磷酸盐、 磷酸氢二盐、 磷酸二氢盐、 硼酸盐和硅酸盐中一种或多种, 优选为硫酸 ±S
本发明草甘膦胆碱水溶性粒剂的制备方法为:首先按照上述方法制得草甘磷胆碱原 药, 然后将草甘膦胆碱原药和辅料在捏合机中充分混合, 混合后加入混合物总质量的
0-30%的水进行捏合, 捏合完毕后在 40-110Ό下造粒、 20-90Ό下烘干, 即得草甘膦胆碱 水溶性粒剂;
本发明草甘膦胆碱水剂的制备方法为: 首先按照上述方法制得草甘磷胆碱原药, 然 后将草甘膦胆碱原药和辅料混合, 加水补至 100%, 然后在 50-60 °C下搅拌 30-60min, 降温即得草甘膦胆碱水剂。
本发明草甘膦胆碱制成制剂时, 加入一定的助剂作为辅料除草效果更好, 如果药物 含量过高例如 95%以上, 助剂加入量很少, 会影响除草效果。
上述草甘膦胆碱制剂的制备方法中, 所用的水溶性无机盐可以按照任意比例混合。 与现有技术相比, 本发明的草甘膦胆碱原药及其制剂的制备方法具有如下优点:
1、 该方法工艺简易、 经济、 安全, 原料易得, 整个生产过程不使用危化品, 无需 有机溶剂, 无三废排放, 环保性好, 易于控制和操作, 安全系数高, 规模化应用价值高。
2、 本方法制备出的草甘膦胆碱原药具有与草甘膦相同的效力和环保优势, 但是还 具有更多其它优势, 比如低挥发性,扩散飘移较少, 易于操作和混配,应用时机更广泛。 制备原药纯度高, 可用于配置不同类型的制剂, 尤其可以配置高药物含量的制剂。
3、 本方法制备出的草甘膦胆碱原药及其制剂不仅物化性质稳定, 原药和制剂水溶 性高, 可以配置药物高药物含量的制剂, 制剂受热和挤压不变质变形, 稳定性强。
4、 本方法制备出的草甘膦胆碱原药及其制剂在加工、 生产和使用过程中无粉尘, 对环境污染较小, 对生产者和使用者的危害也较小。
5、 本方法制备出的草甘膦胆碱原药及其制剂流动性好, 不粘壁, 减小了环境污染, 流动性好, 易于包装和计量。
6、 本方法制备出的草甘膦胆碱原药及其制剂对包装物要求简单, 水剂一般都采用 质地较为普通的 PE桶作为包装材料即可, 原药及水溶性粒剂只需较普通的铝箔袋或二 合一塑编袋包装, 然后封口就可以, 包装袋价格相对便宜, 同时包装袋易于处理, 只需 集中收集到有资质单位处理即可, 所以在包装物成本相对较低。 具体实施方式
下面结合具体实施例对本发明作进一步说明, 但不限制本发明。 如无特别说 明, 下述实施例中的百分含量均为重量百分数。 原药制备 实施例 1-1
在装有搅拌、 冷却和减压蒸馏装置的 5L反应器中加入 1389g胆碱水溶液 (胆 碱含量为 50%)和 1000g草甘膦原药 (含量 97%),搅拌使其反应,反应过程中放出热量, 反应温度很快升至 45°C, 继续搅拌并 46~50°C恒温反应 30min, 所得水溶液可作为草甘 膦胆碱水剂, 但因为草甘膦胆碱在不加助剂的情况下除草效果不佳, 所以一般将此反应 液经过处理制备草甘磷胆碱原药,反应液处理过程为:将反应液在 -0.08〜- 0.09Mpa的压 力下进行浓缩, 浓縮至沸点为 125Ό时停止, 然后将温度降至 40Ό进行结晶, 结晶后过 滤、 洗涤、 60 烘干, 得草甘磷胆碱原药 1591g, 原药中草甘磷胆碱含量为 98.1%。 实施例 1-2
在装有搅拌、冷却和减压蒸馏装置的 5L反应器中加入 1192g胆碱水溶液 (胆碱 含量为 60%)和 1000g草甘膦原药 (含量 97%), 搅拌使其反应, 反应过程中放出热量, 反应温度很快升至 45°C, 继续搅拌并 47~51 °C恒温反应 35min, 所得水溶液可作为草甘 膦胆碱水剂, 由于草甘膦胆碱在不加助剂的情况下除草效果不佳, 所以一般将此反应液 经过处理制备草甘磷胆碱原药,反应液处理过程为:将反应液在 -0.08〜- 0.09Mpa的压力 下进行浓缩,浓缩至沸点为 130Ό时停止,然后将温度降至 45Ό进行结晶,结晶后过滤、 洗涤、 60°C烘干, 得草甘磷胆碱原药 1609g, 原药中草甘磷胆碱含量为 98.0%。 实施例 1-3
在装有搅拌、 冷却和减压蒸馏装置的 5L反应器中加入 1041g胆碱水溶液 (胆 碱含量为 70%)和 1000g草甘膦原药 (含量 97%),搅拌使其反应,反应过程中放出热量, 反应温度很快升至 45Ό, 继续搅拌并 48~52°C恒温反应 45min, 所得水溶液可作为草甘 膦胆碱水剂, 由于草甘膦胆碱在不加助剂的情况下除草效果不佳, 所以一般将此反应液 经过处理制备草甘磷胆碱原药,反应液处理过程为:将反应液在 -0.08〜- 0.09Mpa的压力 下进行浓缩,浓縮至沸点为 130Ό时停止,然后将温度降至 50°C进行结晶,结晶后过滤、 洗涤、 60°C烘干, 得草甘磷胆碱原药 1625g, 原药中草甘磷胆碱含量为 97.8%。 实施例
按照实施例 1-2的方法进行处理制备草甘膦胆碱原药,各反应参数按照下表进 行添加, 所得草甘膦原药情况见下表:
Figure imgf000006_0001
水溶性粒剂制备 实施例 2-1
水溶性粒剂配方为 (wt%): 草甘磷胆碱 80%, 脂肪醇聚氧乙烯醚 5%, 硫酸盐余 制备方法为: 取 815g实施例 1-1制得的草甘磷胆碱原药 (含量为 98.1%), 按照配 比加入脂肪醇聚氧乙烯醚, 用硫酸盐补足至 100%, 将各组分在捏合机中充分均匀混合 后, 加入混合物总和质量的 20%的水进行捏合, 捏合完毕在 80°C下造粒, 6(TC条件下 洪干, 即得到 80%草甘膦胆碱水溶性粒剂, 所得水溶性粒剂成粒率高, 在 99%以上, 颗 粒圆整、 饱满、 不易松散。 实施例 2-2
水溶性粒剂配方为 (wt%): 草甘磷胆碱 55%, 脂肪醇聚氧乙烯醚 10%, 硫酸盐余 制备方法为: 取 561g实施例 1-1制得的草甘磷胆碱原药 (含量为 98.1%), 按照配 比加入脂肪醇聚氧乙烯醚, 用硫酸盐补足至 100%, 将各组分在捏合机中充分均匀混合 后, 加入混合物总和质量的 30%的水进行捏合, 捏合完毕在 60°C下造粒, 75Ό条件下 烘干, 即得到 55%草甘膦胆碱水溶性粒剂, 所得水溶性粒剂成粒率高, 在 99%以上, 颗 粒圆整、 饱满、 不易松散。 实施例 2-3
水溶性粒剂配方为 (wt%): 草甘磷胆碱 65%, 脂肪醇聚氧乙烯醚 7.5%, 硫酸盐余 制备方法为: 取 663g实施例 1-1制得的草甘磷胆碱原药 (含量为 98.1%), 按照配 比加入脂肪醇聚氧乙烯醚, 用硫酸盐补足至 100%, 将各组分在捏合 ίΙ中充分均匀混合 后, 加入混合物总和质量的 1%的水进行捏合, 捏合完毕在 95 °C下造粒, 55 Ό条件下烘 干, 即得到 65%草甘膦胆碱水溶性粒剂, 所得水溶性粒剂成粒率高, 在 99%以上, 颗粒 圆整、 饱满、 不易松散。 实施例
按照实施例 2-1的方法制备水溶性粒剂, 各反应参数按照下表进行添加:
Figure imgf000007_0001
水剂的制备 实施例 3-1
水剂配方为 (wt%) : 草甘磷胆碱 80%, 脂肪醇聚氧乙烯醚 12.5%, 水余量。 制备方法为: 取 815g实施例 1-1的草甘磷胆碱原药 (含量为 98.1%), 按配比加入 脂肪醇聚氧乙烯醚, 用水补足至 100%, 将各组分在 52-58Ό保温搅拌 45min, 降温后放 料制得 80%草甘膦胆碱水剂。 实施例 3-2
水剂配方为 (wt%): 草甘磷胆碱 55%, 脂肪醇聚氧乙烯醚 10.0%, 水余量。 制备方法为: 取 561g实施例 1-1的草甘磷胆碱原药 (含量为 98.1%), 按配比加入 脂肪醇聚氧乙烯醚, 用水补足至 100%, 将各组分在 53-57Ό保温搅拌 20min, 降温后放 料制得 55%草甘膦胆碱水剂。 实施例 3-3
水剂配方为 (wt%): 草甘磷胆碱 60%, 脂肪醇聚氧乙烯醚 15%, 水余量。
制备方法为: 取 612g 实施例 1-1 的草甘磷胆碱原药 (含量为 98.1%), 按配比加 入脂肪醇聚氧乙烯醚, 用水补足至 100%, 将各组分在 54-58Ό保温搅拌 40min, 降温后 放料制得 60%草甘膦胆碱水剂。 实施例
按照实施例 3-1的方法制备水剂, 各反应参数按照下表进行添加:
Figure imgf000008_0001
、 以上实施例所得产品性能检测结果见下表。
1、 将实施例 1-1至 1-9所得的草甘磷胆碱原药进行性能测试, 结果见表 1。
Figure imgf000009_0001
、 将实施例 2-1至 2- 1所得的水溶性粒剂进行性能测试, 结果见表 2< 表 2 产品性能测试结果
水不溶物, 水不溶物,
%
\ 口 起泡 溶解
\广 口口 水分, %
性, 速 PH (通过 指标 \ % (通过 75μηι
ml 度 , s 75μηι筛, 蹄, 5min后)
18h后) 实施例 2-1 23 38 8.0 0.05 0 0 实施例 2-2 21 37 7.9 0.06 0 0 实施例 2-3 22 38 8.1 0.08 0 0 实施例 2-4 25 41 7.9 0.21 0.005 0 实施例 2-5 28 42 8.0 0.15 0.01 0 实施例 2-6 26 42 7.6 0.20 0.006 0 实施例 2-7 26 40 8.1 0.18 0.005 0 实施例 2-8 27 41 8.0 0.17 0.004 0 实施例 2-9 26 42 8.1 0.16 0.009 0 实施例 2-10 27 41 7.9 0.15 0.007 0 实施例 2-11 22 38 8.0 0.07 0 0 3、 将实施例 3-1至 3-10所得的水剂进行性能测试, 结果见表 3。
Figure imgf000010_0001
二、 以实施例 2-1所得 80%草甘膦胆碱水溶性粒剂为例, 研究本发明产品的除草效果
1、 所用药物
试验药剂: 本发明实施例 2-1所得 80%草甘膦胆碱水溶性粒剂。
对照药剂: 74.7%草甘膦铵盐可溶性粒剂, 登记号 PD20097137, 山东潍坊润 丰化工股份有限公司生产。
2、 试验场地
选择海南省海口市云龙镇试验柑桔园为试验区, 该柑桔园种植四年, 已投产, 品种为红江橙, 杂草覆盖度 65%左右, 草高为 4-6cm, 生长旺盛, 幼嫩。 杂草主要 有: 马唐 (Digitavia dscenders)、 牛筋草 (E leusine indicacc L.)、 胜红莉 (Ageratam conyzoides L.)、 龙葵 (Solanam nigrum L.)、 旱稗 (Echinochloacrusgalli (L.) Beau v. Var.) o
3、 实验方法 .1药物用:
表 4药剂及药物用
Figure imgf000011_0001
Figure imgf000011_0002
3.2试验区域的划分 将试验区按照下表划分为 20个试验小区, 每个试验小区 '的面积为 40m2, 每个试验 小区按标记组别分别施用上述表 4中所述的药剂。 试验区情况见表 5。 表 5
Figure imgf000011_0003
3.3施药当天天气状况
施药当日少云, 平均气温 29.9Ό , 相对湿度 72%, 无降水过程, 施药后 2-10天, 以多云天气为主, 其中 2天有降水过程, 总降雨量 46.9mm, 气温 29.8-31.1 °C, 相对湿 度 66-72%。 试验地为红壤土, pH5.8左右。
3.4施药方法 杂草叶面喷雾法施药, 使用新加坡 Jacto HD400型手动背负喷雾器, 每公顷兌药液 675升。
4、 药效计算方法
分别于药后 15天、 30天各调查一次杂草株数, 药后 30天加测杂草鲜重。药效计算 公式如下:
, β 对照区杂萆株数(或鲜重) 一处理区杂草株数 (或鲜重) 1 Λη 欢果 ( ) = ^~^^^¾¥杂草株数 (或鲜重) x 100
并用邓肯氏新复极差( DM T )法分析差异显著性。
5、 结果 每天对试验区内的杂草进行定点观察, 药后 4-5天有的杂草心叶开始失绿, 6-7天 停止生长, 之后开始萎蔫、 枯黄直至死亡, 施药后致杂草枯死为 7-20天。 药后 15天、 30天后杂草防除情况见下表 6-8。 下表 6-8中, 药剂 1表示 80%草甘膦胆碱水溶性粒剂 600克 /公顷, 药剂 2表示 80%草甘膦胆碱水溶性粒剂 1200克 /公顷, 药剂 3表示 80%草 甘膦胆碱水溶性粒剂 1800克 /公顷, 药剂 4表示 80%草甘膦胆碱水溶性粒剂 2000克 /公 顷, 药剂 5表示 74.7%草甘膦铵盐可溶性粒剂 2241克 /公顷。 表 6对杂草株数防除效果(%)—施药后 15天
Figure imgf000012_0001
表 7对杂草株数防除效果(%)—施药后 30天
Figure imgf000013_0001
表 8对杂草鲜重防除效果(%)—施药后 30天
Figure imgf000013_0002
用邓肯氏新复极差(DMRT )法进行统计分析防效的差异显著性。 从试验结果看, 本 发明 80%草甘膦胆碱水溶性粒剂对马唐、 牛筋草、 胜红蓟、 龙葵、 旱稗等杂草比较敏 感, 随着用药剂量的增加, 对杂草的防除效果提高。
对药后 30天的株数总防效进行分析可知, 低剂量与中剂量、 高剂量防效之间两两 比较差异极显著; 对药后 30天的鲜重总防效进行分析可知, 低剂量、 中剂量、 高剂量 防效之间两两比较差异极显著。 三、按照上述二中所述方法,对上述实施例 2-1至 2-11和 3-1至 3-10的制剂进行药效研 究, 有效成分用量均为 2000克 /公顷, 具体如下表 9: 表 9对杂草株数防除效果(%)—施药后 30天
Figure imgf000014_0001
从上述数据可以看出, 各个制剂按照有效成分 2000克 /公顷用量可以有效防除田间 各类杂草。 本发明通过助剂的选择, 所得的水溶性粒剂药物效果优异。

Claims

权 利 要 求 书
1. 一种草甘膦胆碱, 其特征是结构式为:
Figure imgf000015_0001
一种草甘膦胆碱制剂, 其特征是: 包括药物有效成分和辅料, 药物有效成分为权利 要求 1中所述的草甘磷胆碱, 草甘磷胆碱的含量为 5~95wt%, 优选为 15~90wt%, 进一步优选为 35~90wt%, 最优选为 55~90wt%, 最最优选为 55-80%。 根据权利要求 2所述的草甘膦胆碱制剂, 其特征是: 剂型为水剂或水溶性粒剂。 根据权利要求 3所述的草甘膦胆碱制剂, 其特征是: 水溶性粒剂时, 所用辅料为助 剂和水溶性填料,助剂含量 2.0~15.0wt%,优选为 5-10wt%,水溶性填料补足 100wt%; 水剂时, 所用辅料为助剂和水, 助剂含量 5.0~25.0wt%, 优选为 10-15wt%, 水补足 100wt 根据权利要求 3所述的草甘膦胆碱制剂, 其特征是: 水溶性粒剂时, 各组分含量如 下: 草甘磷胆碱 55~80wt%, 助剂 5-10wt%, 水溶性填料补足 100wt%; 水剂时, 各 组分含量如下: 草甘磷胆碱 55~80wt%, 助剂 10-15wt%, 水补足 100wt%。 根据权利要求 4或 5所述的草甘膦胆碱制剂, 其特征是: 所述助剂为垸酰胺基牛磺 酸盐、 聚氧乙烯脂肪酸酯、 脂肪醇聚氧乙烯醚、 聚氧乙烯脂肪胺、 乙氧基蓖麻油、 脂肪酸聚乙二醇酯、垸基酚聚氧乙烯醚、聚氧乙烯聚氧丙烯醚、脂肪胺聚氧乙烯醚、 聚氧乙烯聚氧丙烯羧酸盐、 壬基酚聚氧乙烯醚、 环氧乙垸-环氧丙烷嵌段共聚物、十 二垸基硫酸钠、 十二垸基苯磺酸钠、 壬基酚聚氧乙烯醚硫酸盐、 苯乙烯聚氧乙烯醚 硫酸铵盐、 垸基联苯醚二磺酸镁盐和三乙醇胺盐中的一种或多种, 优选为脂肪醇聚 氧乙烯醚; 所述的水溶性填料为水溶性无机盐, 包括硫酸盐、 硝酸盐、 盐酸盐、 碳 酸盐、 碳酸氢盐、 磷酸盐、 磷酸氢二盐、 磷酸二氢盐、 硼酸盐和硅酸盐中一种或多 种, 优选为硫酸盐。
权 利 要 求 书
7. 一种权利要求 1所述的草甘膦胆碱原药的制备方法, 其特征是: 将草甘膦和胆碱在 水环境下反应, 反应液经过减压浓縮、 降温结晶、 洗涤烘干, 得草甘磷胆碱原药。
8. 根据权利要求 7所述的制备方法, 其特征是: 反应温度为 45〜55°C。
9. 根据权利要求 7所述的制备方法,其特征是:草甘膦与胆碱的摩尔比为 1 : 0.95-1.5, 优选为 1 : 1.0-1.3, 进一步优选为 1 : 1.0-1.05。
10. 根据权利要求 7或 8所述的制备方法, 其特征是: 胆碱以胆碱水溶液的形式加入, 胆碱水溶液中胆碱的质量百分含量为 40-80% ; 草甘膦与胆碱的反应时间为 15〜65min, 优选为 15~45min。
11. 根据权利要求 7所述的制备方法, 其特征是: 减压浓缩时, 在 -0.08〜- 0.09Mpa的压 力下将水剂浓缩至沸点为 125-135Ό ; 降温结晶时, 温度降至 40— 50°C进行结晶。
12. 一种草甘膦胆碱水溶性粒剂或水剂的制备方法, 其特征是:
水溶性粒剂的制备步骤包括: 按照权利要求 7-11中任一项所述的方法制得草甘磷胆 碱原药, 然后将草甘膦胆碱原药和辅料在捏合机中充分混合, 混合后加入混合物总 质量的 0-30%的水进行捏合, 捏合完毕后在 40-110Ό下造粒、 20-90°C下烘干, 即得 草甘膦胆碱水溶性粒剂;
水剂的制备步骤包括:按照权利要求 7-11中任一项所述的方法制得草甘磷胆碱原药, 然后将草甘膦胆碱原药和辅料混合, 加水补至 100%, 然后在 50-6CTC下搅拌 30-60min, 降温即得草甘膦胆碱水剂。
PCT/CN2014/000396 2013-12-30 2014-04-14 一种草甘膦胆碱原药、制剂及其制备方法 WO2015100686A1 (zh)

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