Oxadiargyl oil suspension agent and preparation method thereof
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A technology of oxadiazone and oil suspension agent, which is applied in the field of pesticides and can solve the problems of dust pollution, difficulty in weighing and the like
Inactive Publication Date: 2012-06-27
ANHUI RES INST OF CHEM IND +1
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[0003] At present, the main dosage form of propargyl oxadiazone is wettable powder, which will cause dust pollution during processing and is difficult to weigh during use.
Method used
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Embodiment 1
[0020] Weigh 200g propargyl oxadiazone technical material, 8g lignosulfonate dispersant, 13g thickener organic bentonite, white carbon black, magnesium aluminum silicate or a mixture of several, 15g stabilizer epoxy soybean oil , 190g of emulsifier styrene-based polyoxyethylene ether and alcohol ether mixture, 574g of soybean oil are mixed evenly and then put into the sand mill, sand milled until the particle size is below 5um, and the sand milled product is filtered out.
Embodiment 2
[0022] Take by weighing 200g propargyl oxadiazone former drug, 10g ethylenediamine polyoxyethylene polyoxyethylene ether dispersant, 16g thickener organic bentonite, white carbon black mixture, 20g stabilizer hydroquinone, 250g emulsifier benzene Vinyl polyoxyethylene ether and alcohol ether mixture, 504g of methyl esterified corn oil are evenly mixed and placed in a sand mill, sanded to a particle size below 5um, and the sanded product is filtered out.
[0028] 25% propargyl oxadiazone oil suspension concentrate, produced by Anhui National Pesticide Formulation Engineering Technology Center and Anhui Kelihua Chemical Co., Ltd.
[0029] 1.2 Experimental Design of Drugs to be Tested
[0030] Table 1 Test design for test agents
[0031]
[0032] 1.3 Cell area and repetition
[0033] Community area: 20m 2
[0034] Number of repetitions: 4 times
[0035] 2 Application method
[0036] 2.1 How to use
[0037] After inhaling the correct dose of medicine, first add water to the small beaker and shake it well, then pour it into the manual...
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Abstract
The invention discloses an oxadiargyl oil suspension agent and a preparation method thereof. The oxadiargyl oil suspension agent is prepared from oxadiargyl, a solvent, a thickener, a dispersant, an emulsifier and a stabilizer as raw materials by the following steps: pretreating oxadiargyl and the thickener, mixing all of the raw materials, stirring, feeding into a sanding machine, sanding to particles with particle size below 5mum, and filtering. The quality analysis results show that the decomposition rate of effective ingredients of the product is small than 3%, the suspension rate is over 90%, no sedimentation, caking or layering phenomenon occurs in case of low-temperature storage, the stability of the product is qualified, and no sedimentation, caking or layering phenomenon occurs in case of storage at 54 DEG below 2 DEC or above 2 DEG C for 14 days. The product of the invention is simple in formulation and production process, low in production cost and convenient in use, adopts domestic assistants, does not use organic solvent so as to greatly reduce the pressure on environmental protection, and has good a control effect on Lindernia procumbens, Jussiaea linifolia, Monochoria vaginalis, Lindernia antipoda, Eclipta prostrate, Cyperus iria and other weeds.
Description
technical field [0001] The invention relates to a propargyl oxadiazone oil suspension concentrate and a preparation method thereof, belonging to the field of pesticides. Background technique [0002] Proxadiazone (also known as Daostar) is a new type of diazolone selective herbicide at bud stage developed by Rhone-Planck company in France. It is mainly used in rice, potato, sunflower, vegetable, sugar beet, orchard Control broadleaf weeds before emergence. The pesticide residue limit of this product is low, so the development of propargyl oxadiazone will produce significant economic and social benefits. At present, only 80% wettable powder has been developed and used, but this kind of product produces a lot of dust in the process of processing, which pollutes the surrounding environment greatly, and the health of many operators is also unfavorable, so the present invention adopts wet grinding technology to develop Oil suspension to reduce environmental pollution and operat...
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Application Information
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