Method for preparing microemulsion by mixing pesticide, liquid fertilizer and bioemulsifier

A technology of biological emulsifier and liquid fertilizer, applied in fertilizer mixtures, botanical equipment and methods, biocides, etc., can solve the problems of poor stability over time, large dosage of microemulsion, and phytotoxicity of surfactants to plants, etc. To achieve the effect of good adhesion and dispersion, strong penetration, and little environmental pollution

Inactive Publication Date: 2012-12-19
HEILONGJIANG HETIANFENGZE AGRI SCI ANDTECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems that the microemulsion prepared by the existing method has poor stability over time, and the surfactant used is phytoto

Method used

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Experimental program
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specific Embodiment approach 1

[0015] Specific embodiment one: the preparation method that a kind of pesticide and liquid fertilizer and biological emulsifier are blended into microemulsion in the present embodiment is carried out according to the following steps:

[0016] 1. Weigh 0.1% to 5% of pesticides, 1% to 10% of organic solvents, 0.1% to 3% of co-solvents, 10% of biosurfactants, 5% to 30% of liquid fertilizers and remaining water;

[0017] 2. Add pesticides, organic solvents, co-solvents and biosurfactants into mixing kettle A, and stir for 20-40 minutes at a speed of 50-80 r / min to obtain a uniform transparent solution.

[0018] 3. Add liquid fertilizer and water in sequence to the mixing kettle B, and mechanically stir at 20-40r / min for 50-80min to obtain a mixed solution.

[0019] 4. Add the uniform transparent solution in mixing kettle A into mixing kettle B, stir at 60-80r / min for 30-50min, filter out impurities, and obtain a microemulsion blended with pesticides, liquid fertilizers and biolog...

specific Embodiment approach 2

[0026] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the pesticide in step two is one of abamectin, kauthrin, beta-cypermethrin, ethephon, chlormequat, tebuconazole and uniconazole One or two are mixed in any proportion. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0027] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the organic solvent in step 1 is N, N-dimethylformamide, xylene, cyclohexanone or dimethyl sulfoxide. Others are the same as those in the first or second embodiment.

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Abstract

The invention discloses a method for preparing microemulsion by mixing a pesticide, a liquid fertilizer and bioemulsifier, which relates to a preparation method of microemulsion combining medicines and fertilizers, and mainly aims at solving the technical problems that microemulsion prepared by the existing method is poor in ageing stability, adopts a surfactant which causes phytotoxicity on plants, and is large in dosage. The method comprises the following steps of: weighing raw materials; preparing a uniform and transparent solution from the weighed raw materials; preparing a uniform and mixedly-dissolved solution; and mixing the pesticide, the liquid fertilizer and the bioemulsifier to prepare the microemulsion. The microemulsion prepared by the method overcomes the defect that the microemulsion is sensitive to temperatures and pH values, is good in aging stability, can be applied to disinsection, mite prevention and sterilization of the plants, and can promote growth regulation of the plants and supply nutrition and microelements to the plants.

Description

technical field [0001] The invention relates to a preparation method of a microemulsion combining medicine and fertilizer. Background technique [0002] In pesticide formulations, the research on water-based formulations is changing with each passing day. The state has introduced relevant policies to encourage the development of water-based formulations that are compatible with the environment and easy to use, so as to realize the water-based pesticides, the integration of medicine and fertilizer, and the greening of biology. In 1984, the Japanese patented the use of anionic and nonionic surfactants to achieve success. At the same time, the application of emulsifiers and polydielectrics by Hrton in the United States also formed a manufacturing method. In my country, microemulsions of abamectin and beta-cypermethrin have been registered and invented (such as CN130783A; 99107713X; 99116869.0, etc.). Usually the production method of microemulsion is to use organic solvent, sol...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01N25/30A01N25/04
Inventor 任伟东于海清董志强于涛
Owner HEILONGJIANG HETIANFENGZE AGRI SCI ANDTECH DEV
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