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Water-dispersible granule and clean production method thereof

A technology of dispersing granules and dispersing agents, which is applied in the field of pesticides and can solve problems such as high energy consumption, complicated processing technology, and difficult operation control

Inactive Publication Date: 2016-08-10
GUANGDONG ZHONGXUN AGRI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a processing method for the clean production of water-dispersible granules in order to solve the defects of high processing cost and complicated processing technology of the current traditional water-dispersion manufacturing process
The water-dispersible granule processing method of the present invention heats the powder into a paste, granulates the material through high shear, and obtains a water-dispersed production process through fluidized bed cold air drying, thereby solving the energy consumption in the current water-dispersed production process. High consumption, difficult operation and other problems make water dispersible granules meet the requirements of clean production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: 40% acetamiprid water-dispersible granules.

[0020] Accurately weigh 40 parts of acetamiprid technical material, 5 parts of sodium lauryl sulfate, 5 parts of polycarboxylate, 5 parts of naphthalene sulfonate, 30 parts of urea, and the balance of light calcium, add to a double-helix mixer and mix evenly , transferred to the airflow mill to crush to the required fineness, the drug powder is transferred to the heating equipment and heated at a high speed to make the drug powder melted into granules, and then transferred to the fluidized bed and blown with cold wind until the particles are cooled and granulated, that is, 40% Acetamiprid Water Dispersible Granules

Embodiment 2

[0021] Example 2: 10% difenoconazole water-dispersible granule.

[0022] Weigh 10 parts of difenoconazole, 4 parts of sodium lauryl sulfate, 5 parts of polycarboxylate, 4 parts of naphthalene sulfonate, 20 parts of urea, 10 parts of white sugar, 10 parts of diatomaceous earth, light calcium Add it into the mixer and stir evenly, crush it to the required fineness by airflow, transfer it to the heating shearer, and after the material is melted and sheared into granules, transfer it to the fluidized bed for cold air drying to obtain 10% phenyl ether A Cycloconazole water dispersible granules.

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PUM

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Abstract

The invention relates to a water-dispersible granule and a processing method for clean production thereof. A certain amount of urea is added to the formula of the water-dispersible granule, and after air-flow crushing, the medicinal powder is heated to make the medicinal powder in a hot-melt state. After being granulated, it can be transferred to the vibrating fluidized bed for cooling by cold air; the invention saves the process of drying and drying the fluidized bed in the traditional water-dispersible granule preparation process, which greatly saves energy consumption , better environmental protection. The invention can prepare water-dispersible granules containing epoxiconazole, dimethomorph, pymetrozine, azoxystrobin, imidacloprid and other active ingredients.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a water-dispersible granule and a processing method for clean production thereof. Background technique [0002] Pesticide water-dispersible granules are a new dosage form developed in the 1980s, also known as dry suspension, which is defined by the International Federation of Pesticide Industry Associations (GIFAR) as: granules used after disintegration and dispersion in water, Because of its good safety and no pollution to the environment, it is considered to be an important direction for the development of pesticide formulations. Water-dispersible granules are mainly composed of active ingredients of pesticides, dispersants, wetting agents, binders, disintegrants and fillers. The particle size is 200μm-5mm. After entering water, they can quickly disintegrate and disperse to form a high-suspension dispersion system. [0003] The advantages of water dispersible granules are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/14A01N47/40A01N43/653
CPCA01N25/14A01N43/653A01N47/40
Inventor 吴吉龙陈军彭述明周斌王敏
Owner GUANGDONG ZHONGXUN AGRI TECH
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