Mixed solid preparation of chloropicrin and 1.3-dichloropropylene and manufacturing technology thereof

A technology of dichloropropene and solid dosage form, which is applied in the direction of biocide, bactericide, biocide, etc., can solve the problems of increasing pesticide application costs, wasting drugs, environmental pollution, etc., and achieves the use of less raw medicine and lower cost Reduced, easy-to-use effect

Active Publication Date: 2013-11-13
韩景良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the toxic gas that cannot be decomposed enters the atmosphere in large quantities, it not only wastes drugs and increases the cost of drug application, but also causes serious pollution to the environment
Therefore, the use of chloropicrin and 1.3-dichloropropene is neither safe nor economical

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 Granular activated carbon adsorption 1.3 - dichloropropene and chloropicrin test

[0015] The glass adsorption tower is filled with 16g of activated and dried granular activated carbon, and the upper port is the tail gas exhaust port, which is connected to the adsorption tank with activated carbon inside. The lower port is a ventilation port, installed with a mixed liquid (1.3--dichloropropene original drug and chloropicrin original drug), heated and evaporated into gas, heated to 70°C--boiling point, stopped ventilation after 3 hours, and took out the adsorption activated carbon. Weigh and gain 4g. There is no chloride in the tail gas test.

Embodiment 2

[0016] Example 2 Activated clay adsorption 1.3 - dichloropropene and chloropicrin test

[0017] The device is as in Example 1, and the activated and dried clay particles are loaded into the adsorption tower. The particle size is 200g of 0.5mm particles, and 40g of the mixed gas of 1.3-dichloropropene and chloropicrin is adsorbed.

Embodiment 3

[0018] Example 3 Activated alumina adsorption 1.3 - dichloropropene and chloropicrin test

[0019] Put 100g of activated alumina with a particle size of 0.35-0.84mm in the adsorption tower (the particles between 20-45 standard sieves were sieved), and the mixture was heated to 70°C~boiling point, and the gas was stopped for 4 hours, and the adsorption weight increased by 20%. , 40% weight gain in 6 hours.

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PUM

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Abstract

The invention relates to a method for compounding technical material liquid of chloropicrin and 1.3-dichloropropylene and manufacturing a solid preparation and a use method. The method for compounding technical material liquid of chloropicrin and 1.3-dichloropropylene and manufacturing a solid preparation comprises the following steps: compounding the technical material liquid of the chloropicrin and the 1.3-dichloropropylene with a certain weight percentage; heating and vaporizing; vaporizing and absorbing by using active carbon and other adsorbents, and preparing the required compound mixed solid preparation according to the required content of technical material. The mixed solid preparation is used for soil fumigation and pest control and can adopt various methods such as hole application, furrow application, broadcast seeder overturning and the like.

Description

technical field [0001] The invention relates to a dosage form of an insecticide and a soil fumigant, in particular a dosage form containing 1.3-dichloropropene and chloropicrin. technical background [0002] 1.3--dichloropropene, English name: 1.3--1,3-dichloropropene; 1,3-dichloropropylene, international number: 33528 CAS: 542-75-6, alias: 1.3--D or 3-chloropropenyl Chlorine, molecular formula: C3H4Cl2; ClCH=CHCH2Cl. Molecular weight: 111.00, melting point -84°C, boiling point: 112°C (cis), 104°C (trans), relative density 1.2170 (cis), 1.2240 (trans), gas density 3.8g / L (20°C). It is a colorless volatile liquid with a chloroform-like smell. Hazard mark: 7 (flammable liquid), used as soil fumigant and preservative in agriculture, mixed with dichloropropane as soil fumigant. It has a certain control effect on fungi and underground pests. [0003] Chloropicrin, chemical name is trichloropicrin, international common name: chloropicrin, its mp-64°C, bp112.4°C, d204 1.656, al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/08A01N25/18A01N59/00A01N29/02A01P3/00A01P7/00
Inventor 韩景良
Owner 韩景良
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