Preparation method and application of 1,3-dichloropropene solid slow-release preparation

A technology of dichloropropene and slow-release agent, which is applied in the field of preparation of 1,3-dichloropropene solid slow-release agent, can solve the problems of serious groundwater pollution, easy misuse, and inability to use, and achieves no three-waste discharge and method. Simple and low cost effect

Inactive Publication Date: 2013-05-22
韩景良 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although 1,3-dichloropropene is effective in preventing and controlling crop diseases in farmland, the use of liquid agent has the following disadvantages: if the ground temperature is lower than 15°C, the treatment time will take more than three weeks, and it is easy to miss the farming time in most cold climate areas, and cannot use
In addition, because it is insoluble in water, it seriously pollutes groundwater.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of 20wt% content preparation: 80g of adsorbent dry granular activated carbon is loaded into the glass adsorption tower, the upper port of the glass adsorption tower is the tail gas outlet, and the tail gas outlet is connected to the decomposition liquid bottle. The lower port of the glass adsorption tower is the air inlet, which is connected with the vaporization bottle. The raw material of 1,3-dichloropropene is filled in the vaporization bottle. When the 1,3-dichloropropene in the vaporization bottle is heated to 80℃~ At the boiling point, keep it for 3-4 hours. With the continuous vaporization and reduction of 1,3-dichloropropene, the adsorption temperature of the glass adsorption tower is 4~10°C. When the reduction reaches 20g, take out the activated carbon loaded in the glass adsorption tower , weighed as 100g to obtain the finished product.

[0024] Wherein, the particle weight of the adsorbent is 0.5-10 g.

Embodiment 2

[0026] Preparation of preparation with 40wt% content: the device is as in Example 1, 60g of activated clay particles are loaded into the adsorption tower, when the 1,3-dichloropropene in the vaporization bottle is heated to 80°C~boiling point, keep it for 4h, with 1, 3-Dichloropropene is continuously vaporized and reduced. The adsorption temperature of the glass adsorption tower is 4~10°C. When the reduction reaches 40g, take out the adsorption product in the glass adsorption tower and weigh it to 100g to obtain the finished product.

[0027] Among them, the commercially available activated clay is a powder with a fineness of about 100-200 mesh, which needs to be granulated and dried before use. The particle size is 0.3~0.5cm, and the particle weight is 0.5~10g.

Embodiment 3

[0029] Preparation of preparation with 40wt% content: the device is as in Example 1, 60g of adsorbent dry granular activated carbon is loaded in the adsorption tower, when the 1,3-dichloropropene in the vaporization bottle is heated to 80°C~boiling point, keep it for 4h, with 1,3-Dichloropropene is continuously vaporized and reduced. The adsorption temperature of the glass adsorption tower is 4~10°C. When the reduction reaches 40g, take out the adsorption product in the glass adsorption tower and weigh it to 100g to obtain the finished product.

[0030] Wherein, the particle weight of the adsorbent-dried granular activated carbon is 0.5-10 g.

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PUM

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Abstract

The invention discloses a preparation method and application of a 1, 3-dichloropropene solid slow-release preparation. The preparation process is specifically as follows: the slow-release preparation is prepared by using an adsorption method of separation, that is, an absorbent carrier which has high absorption performance and desorption performance is adopted and used for absorbing the gasified 1,3-dichloropropene for 3 to 4 hours, thus obtaining different soil sanitizers with the content of 1,3-dichloropropene ranging from 5 to 40wt%, wherein the absorbent carrier comprises at least one of activated carbon, activated clay and a polymeric absorbent, and preferably, the absorbent carrier is the activated carbon; and the grain weight of the absorbent carrier is 0.5 to 10g. By adopting the product prepared by the method disclosed by the invention, the control effect the same as that of the stock solution can be gained, and the product is even wider in broad spectrum; specific experimental conditions can be saved; and the operation process is simple, the repeatability is great, and the effect of the soil sanitizer can be efficiently realized along with high quality. The method is wide in applicable scope and application prospect.

Description

technical field [0001] The invention belongs to the technical field of solid dosage form pesticide manufacture, and in particular relates to a preparation method and application of 1,3-dichloropropene solid slow-release agent. Background technique [0002] Soil-borne diseases are a kind of diseases caused by the infection of pathogens surviving in the soil. They develop seriously on vegetables, melons and fruits, ornamental plants and forest trees, especially on protected crops. The situation in my country in recent years is: with the development of agricultural production and economy, the area of ​​greenhouse crops is increasing day by day, which has become an important means for farmers to increase their income, and is also an important measure for the transformation of traditional agriculture to modern agriculture. The development of greenhouses also provides a suitable environment for the occurrence and development of soil-borne diseases. Usually after 3-5 years of cult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/18A01N29/02A01P1/00A01P3/00A01P5/00
Inventor 韩景良伊长君
Owner 韩景良
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