Preparation method of isoprothiolane suspending agent by employing water as solvent

A technology of rice blast spirit and suspending agent, which is applied in the field of preparation of rice blast spirit suspension agent, can solve the problems of serious environmental pollution, air pollution, harm to operators and environmental safety, etc., and achieves convenient use, safe storage, transportation and use, cost low effect

Inactive Publication Date: 2015-05-20
天津市施普乐农药技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pesticides have made outstanding contributions to increasing agricultural production and farmers' income for a long time, but due to the irrational use of pesticides by humans, the environment has been seriously polluted and at the same time endangered human health and life safety
The organic solvent in the emulsifiable concentrate formulation volatilizes into the air, seriously polluting the air, and the dust flying and drifting in the wettable powder also seriously endangers the safety of operators and the environment

Method used

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  • Preparation method of isoprothiolane suspending agent by employing water as solvent
  • Preparation method of isoprothiolane suspending agent by employing water as solvent
  • Preparation method of isoprothiolane suspending agent by employing water as solvent

Examples

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preparation example Construction

[0011] The preparation method of the rice blasting suspension using water as the solvent of the present invention includes the following steps:

[0012] (1) Heat the deionized water to 30~80℃, add it into the high shear kettle and stir, add the dispersant until it is completely dissolved;

[0013] (2) According to rice blasting agent 10-60%, wetting agent 0.1-10%, thickening agent 0.1-10%, antifreeze 0.1-8%, defoaming agent 0.1-5%, dispersing agent 0.1-10%, Deionized water and make up the percentage, put the above raw materials into the high-shear kettle to make slurry, and the high-speed shear time is 0.5-10h to cool down;

[0014] (3) The above-mentioned slurry is pumped into the sand mill through the pipeline and diaphragm pump for high-speed grinding, and the temperature of the circulating fluid of the sand mill is maintained at -25℃~25℃;

[0015] (4) The sand mill is a series of multiple sand mills to make a suspending agent, so that the particle diameter of the suspending agent ...

Embodiment 1

[0021] Example 1 40% rice blast spirit suspension

[0022]

[0023] The preparation method of 40% rice blasting suspension agent: Weigh various raw materials according to the above ratio, then heat the deionized water to 35℃, add the deionized water into the high shear kettle, and mix the dispersant methylene Add the bis-naphthalene sulfonate, and after it is completely dissolved, put the rice blasting agent, wetting agent, thickener, antifreeze, and defoamer into the high-shear kettle, and high-speed shear for 30-40 minutes. The temperature is reduced to 15°C, and then the slurry is pumped into the sander through a pipeline and a diaphragm pump for high-speed grinding, and the circulating water temperature of the sand mill is maintained at 15°C. Three sanders are operated in series. Make the particle diameter of the suspending agent below 4μm and adjust the PH value to 6.5 to obtain a 40% rice blasting suspension.

Embodiment 2

[0024] Example 2 10% rice blast spirit suspension

[0025]

[0026] The specific operation steps are the same as in Example 1

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Abstract

The invention provides a preparation method of an isoprothiolane suspending agent by employing water as a solvent. The method comprises the following steps: heating deionized water to 30-80 DEG C, adding the deionized water to a high-shear kettle, stirring, and adding a dispersing agent until the dispersing agent is completely dissolved; feeding the following raw materials in percentage by weight: 10%-60% of isoprothiolane, 0.1%-10% of a wetting agent, 0.1%-10% of a thickening agent, 0.1%-8% of an antifreezing agent, 0.1%-5% of a defoaming agent, 0.1%-10% of a dispersing agent and the balance being the deionized water to the high-shear kettle, pulping, carrying out high-speed shearing, and cooling; pumping pulp into a sand mill through a pipeline and a diaphragm pump, and grinding at a high speed; and adjusting the particle sizes of suspending agent particles to be 0.1-4 microns, and adjusting the pH to be 6.5, so as to obtain a qualified isoprothiolane suspending agent product. Compared with missible oil, the isoprothiolane suspending agent has the beneficial effects that use of a lot of organic solvents and the problems of combustion and pesticide hazards generated by the organic solvents are avoided; the effects on environment, caused by the organic solvents, are completely eradicated; and compared with wettable powder, the isoprothiolane suspending agent is free of dust flying and drifting, safe to an operator and the environment, low in cost, and safe to produce, store, transport and use.

Description

Technical field [0001] The invention is a preparation method of a rice blastic suspension using water as a solvent, and specifically relates to the selection and dosage of the original medicine and auxiliary agents; the range of shearing temperature and grinding temperature, the range of shearing time and grinding time. Background technique [0002] Pesticides have made outstanding contributions to increasing agricultural production and farmers' incomes for a long time. However, due to the unreasonable use of pesticides by humans, environmental pollution is serious, and human health and life safety are endangered. The organic solvents in the emulsifiable concentrates volatilize into the air, causing serious pollution to the air, and the flying and drifting of dust in the wettable powder also seriously endangers the safety of operators and the environment. In this way, it is very important to develop a new pesticide formulation that can effectively prevent pests and diseases, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/28A01N25/04A01P3/00
Inventor 鲁伶兰马颖李凯崔跃穆称杨寿月
Owner 天津市施普乐农药技术发展有限公司
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