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Preparation method of phoxime pellets

A technology of phoxim granules and phoxim, which is applied in the field of preparation of phoxim granules, can solve the problems of easy decomposition and failure of phoxim, failure to reach the action target, influence on the use effect, and the like, and achieve rich sand sources. , low price, excellent effect

Inactive Publication Date: 2006-05-17
SICHUAN BEIER CHEM GROUP
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  • Claims
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Problems solved by technology

However, phoxim is easily decomposed and invalidated when exposed to light, heat, water, and alkaline substances.
In the past, the preparation of phoxim was mainly emulsifiable concentrate, which must be sprayed with water when used, and it is easy to decompose phoxim in the presence of light and water, which will cause the drift and loss of the medicine, fail to reach the target of action, and affect the use effect ; At the same time, the organic solvent in the emulsifiable concentrate will pollute the environment

Method used

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  • Preparation method of phoxime pellets
  • Preparation method of phoxime pellets

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Embodiment Construction

[0024] The following introduces specific embodiments as the foregoing content of the present invention, and further clarifies the foregoing content of the present invention through examples. Of course, it should not be understood that the scope of the aforementioned subject matter of the present invention is limited to the following examples.

[0025] Preparation method of phoxim granules (see figure 1 ), including the following steps:

[0026] 1. The preparation of binder:

[0027] In a reactor with stirring, add a certain amount of water, add a certain amount of polyvinyl alcohol when heated to 85°C with steam under stirring, keep the temperature at 90°C~95°C and stir for 2 hours to dissolve the polyvinyl alcohol, and add a quantitative amount of polyvinyl alcohol after cooling. Coloring agent, mixed with adhesive for later use.

[0028] 2. Preparation of phoxim granules

[0029] Under rolling and stirring at room temperature, a certain amount of clear sand, phoxim technical age...

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Abstract

The invention discloses a preparation method of phoxim granules. The composition and mass percentage of the granule are: phoxim 1%-5%, carrier 85%-94%, binder 0.95%-3%, adsorbent 4%-8%, coloring agent 0.05% ~0.1%; the particle size of the granule is 370μm~991μm. The advantages of the present invention are that the granule not only retains the broad-spectrum, high-efficiency, and low-toxicity characteristics of the insecticide phoxim, but also has the advantages of long-lasting effect, safe and convenient use, and good compatibility with the environment; its manufacture The process is simple, the equipment investment is small, the output is high, and the energy consumption is low.

Description

Technical field: [0001] The invention relates to an insecticide used in agriculture and horticulture, in particular to a preparation method of phoxim granules. Background technique: [0002] Underground pests are important agricultural pests in my country. They spread across the plains, hills, mountains, grasslands, paddy fields and drylands throughout the country. They damage crops such as grain, cotton, oil, vegetables, fruits, tobacco, flowers, Chinese, and herbal medicines. Long time, often resulting in lack of seedlings and broken ridges, which seriously affects yield and quality. In the past, the prevention and control of underground pests in my country mainly used highly toxic or highly toxic pesticides such as carbofuran and phorate, which caused poisoning of humans and animals and affected the ecological environment. Phoxim is an excellent broad-spectrum, low-toxic insecticide, especially effective for controlling underground pests of various crops. However, phoxim can e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/14A01N25/12A01P7/04
Inventor 王国成梁晓禽
Owner SICHUAN BEIER CHEM GROUP