Nitenpyram soluble granula and preparation method thereof

A nitenpyram and soluble technology, applied in the field of nitenpyram soluble granules and preparation thereof, can solve the problems of low melting point of nitenpyram original drug, inability to perform jet pulverization, poor flowability of the original drug, etc. Difficulty in granulation, no change in color, and low impurity content

Active Publication Date: 2014-08-13
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the melting point of nitenpyram technical substance is low, and the fluidity of the technical substance of most manufacturers is poor
When producing low-content nitenpyram soluble granules, the problem of poor fluidity is relatively easy to solve, but when high-content (more than 50%) nitenpyram soluble granules, granulation is difficult, and material blocking occurs easily. Perform jet milling, causing trouble to production
At present, some researchers use water-insoluble substances such as white carbon black to enhance the overall fluidity of the material and solve the problem of difficult granulation. However, the addition of water-insoluble substances such as white carbon black makes the prepared nitenpyram soluble granules The agent cannot be completely dissolved in water to form a true solution during use, and there are too many impurities in the liquid, which will easily cause the nozzle to be blocked and affect the use

Method used

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  • Nitenpyram soluble granula and preparation method thereof
  • Nitenpyram soluble granula and preparation method thereof
  • Nitenpyram soluble granula and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: 20% Nitenpyram Soluble Granules

[0030]Weigh 206.2 kg of 97% nitenpyram technical substance, sodium lauryl sulfate: 20 kg, tea saponin: 20 kg, ammonium sulfate to make up to 1000 kg. Mix the above-mentioned original drug, additives, and fillers uniformly, and after being pulverized by a jet mill, prepare 20% nitenpyram soluble powder, add an appropriate amount of water, mix evenly again, and granulate through a screw extrusion granulator , 50°C-65°C fluidized bed drying for 1h-2h, and sieving to obtain 20% nitenpyram soluble granules.

Embodiment 2

[0031] Example 2: 30% Nitenpyram Soluble Granules

[0032] Weigh 309.3 kg of 97% nitenpyram technical substance, LS-94 (wetting agent): 30 kg, organic silicon synergist: 30 kg, and make up to 1000 kg with sodium sulfate. Mix the above-mentioned original drug, additives, and fillers uniformly, and after being pulverized by a jet mill, prepare 30% nitenpyram soluble powder, add an appropriate amount of water, mix evenly again, and granulate through a screw extrusion granulator , 50°C-65°C fluidized bed drying for 1h-2h, and sieving to obtain 30% nitenpyram soluble granules.

Embodiment 3

[0033] Example 3: 40% Nitenpyram Soluble Granules

[0034] Weigh 412.4kg of 97% nitenpyram technical substance, WP-62: 40kg, fast penetrant T: 40kg, 200kg of sodium chloride, and make up to 1000kg of sodium sulfate. Mix the above-mentioned original medicine, additives and fillers uniformly, and after pulverization by a jet mill, prepare 40% nitenpyram soluble powder, add an appropriate amount of water, mix again uniformly, and granulate through a rotary granulator, 50 ℃-65℃ fluidized bed drying for 1h-2h, and sieving to obtain 40% nitenpyram soluble granules.

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Abstract

The invention relates to the field of pesticide preparations and discloses a nitenpyram soluble granula and a preparation method thereof. The nitenpyram soluble granula consists of the following components in percentage by mass: 1%-70% of nitenpyram, 1%-10% of a wetting agent, 1%-10% of a synergist and the balance of filler, wherein the filler is soluble inorganic salt, lactose or sugar alcohol. The nitenpyram soluble granula disclosed by the invention has the advantages of being quick in disintegration, good in dispersity, beneficial to storage and good in stability, is easy to pelletize, less in impurities, high in activity, good in efficiency, safe and free of harm on people and free of environmental pollution, has great economic benefits and wide development prospect. The preparation method of the nitenpyram soluble granula is simple in step, easy to operate, low in preparation cost and free of pollution on environment.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to a nitenpyram soluble granule and a preparation method thereof. Background technique [0002] Nitenpyram, chemical name (E)-N-(6-chloro-3-pyridylmethyl)-N-ethyl-N'-methyl-2-nitrovinylidenediamine, manufactured by Takeda, Japan A nicotinimide insecticide developed by the company is another new type of product developed in Japan after imidacloprid and acetamiprid. Nitenpyram has excellent systemic properties, penetration, wide insecticidal spectrum, safety and no phytotoxicity. It is a replacement product for the control of piercing-sucking mouthparts pests such as whitefly, aphids, pear psyllids, leafhoppers, and thrips. Its mechanism of action is similar to that of other neonicotinoid insecticides. It mainly acts on the nervous system of insects. It has a nerve blocking effect on the synaptic receptors of pests. After spontaneous discharge, it expands the diaphragm potential...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/14A01N43/40A01N25/30A01P7/04
Inventor 谢存明武金果任松巧路静
Owner LIANBAO CROP TECH
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