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Solid-liquid treatment method of waste smoke agent containing hexachloroethane

A technology containing hexachloroethane and hexachloroethane, applied in chemical instruments and methods, preparation of halogenated hydrocarbons, organic chemistry, etc., can solve the problem of easy clogging of dust filters and flues, affecting the use effect and use of incineration and destruction systems Life expectancy, environmental pollution and other issues, to achieve the effect of easy control of the operation process, sustainable development, and simple and easy process

Inactive Publication Date: 2011-09-14
CHINESE PEOPLES LIBERATION ARMY NO 63976
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the hexachloroethane contained in the waste fuming agent, a large amount of hydrogen chloride will be produced during the incineration process, and hydrogen chloride will form hydrochloric acid when it meets water, which will cause corrosion to metal fireplaces and chimneys, and will eventually affect the use of the incineration and destruction system Effect and service life
Because the fuming agent will produce fuming reaction at high temperature and produce high concentration of zinc chloride fume, it is easy to block the dust filter and flue, causing accidents
It can be seen that the incineration of waste fuming agents containing hexachloroethane has the following defects: 1. The loss of equipment is huge
2. Accident prone
3. Serious environmental pollution
4. The waste disposal process is cumbersome and costly
5. The zinc chloride produced is very harmful to the human body

Method used

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  • Solid-liquid treatment method of waste smoke agent containing hexachloroethane
  • Solid-liquid treatment method of waste smoke agent containing hexachloroethane
  • Solid-liquid treatment method of waste smoke agent containing hexachloroethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Remove the fuze from the out-of-store smoke bombs or cans containing the waste smoke agent containing hexachloroethane, and try to scrape off the black powder next to the fuze; Try to prevent iron filings and paint skins from falling into the fuming agent, and crush the poured fuming agent into a powder of more than 40 meshes; pour 100kg of the crushed fuming agent into the dissolving tank, and press solid-liquid Add 1m of analytically pure acetone with a purity of more than 99% at a ratio of 1:20 3 ; The fuming agent after adding acetone is stirred and slurried at normal temperature, the stirring speed is 450r / min, and the stirring time is 2h; The pore size is 260 mesh to 300 mesh, and the filtrate containing hexachloroethane is obtained, and the residue containing ZnO and Al is obtained; the filtrate containing hexachloroethane is distilled under reduced pressure in an evaporator, and the heating temperature is 40°C , the pressure is 150mmHg, the evaporated acetone i...

Embodiment 2

[0024] In this example, the stirring rate is 300r / min, the solid-to-liquid ratio is 1:20, and the other conditions and steps are the same as those in Example 1.

Embodiment 3

[0026] In this example, the stirring rate is 300r / min, the solid-liquid ratio is 1:30, and the other conditions and steps are the same as those in Example 1.

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PUM

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Abstract

The invention discloses a solid-liquid treatment method of a waste smoke agent containing hexachloroethane. The method comprises the following steps: firstly, pouring the pre-treated waste smoke agent containing the hexachloroethane in a dissolution tank, and adding a solvent capable of dissolving the hexachloroethane in a set solid-liquid ratio; next, stirring and slurrying the smoke agent with the solvent; then transferring a smoke agent suspension liquid subjected to sluurying to a filtering tank for filtration so as to obtain filtrate containing the hexachloroethane, and distilling the filtrate; and finally, treating the hexachloroethane solid obtained after distillation and then detecting, and feeding the products qualified by detection to a finished product cabin, wherein reduced pressure distillation is used in the distillation process, and the solvent after the reduced pressure distillation can be used as the solvent in the invention to be recycled. The main component hexachloroethane in the smoke agent in the invention can be recycled again, thereby saving economic cost and reducing environment cost; and process is simple and recovery rate is high.

Description

technical field [0001] The invention relates to a treatment method for waste fuming agents, in particular to a solid-liquid treatment method for waste fuming agents containing hexachloroethane. Background technique [0002] The main component of the smoker contained in most fuming canisters is hexachloroethane. Due to various reasons, there are often some scrap fume pots that need to be disposed of in time. At present, the treatment method for the waste fuming agent in the discarded fuming pot is mainly to carry out incineration and destruction. The main process is to disintegrate the waste ammunition, feed the material into the incinerator through the feeder, then perform pretreatment, and burn at different temperatures in the first combustion chamber and the second combustion chamber, and finally spray and burn the burned gas. Degradation, dust removal and other treatment, after passing the test, it is discharged into the atmosphere. Due to the hexachloroethane containe...

Claims

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Application Information

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IPC IPC(8): C07C19/043C07C17/383
Inventor 汪海涛牟瑛琳郑卫平刘斐高润利邓轶宿世春盖希强邓锋光
Owner CHINESE PEOPLES LIBERATION ARMY NO 63976
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