Chlorohydrocarbon waste liquid treating method

A treatment method and waste liquid technology, applied in the direction of heating water/sewage treatment, neutralizing water/sewage treatment, etc., can solve problems such as resource waste, environmental pollution, and no good treatment methods, and achieve easy operation, simple process, Realize the effect of harmless treatment

Inactive Publication Date: 2007-09-19
JUHUA GROUP TECH CENT +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] 1,1,1,3,3-pentachloropropane (HCC-240), 1,1,1,3,3,3-hexachloropropane (HCC-230) is the production of freon substitute pentafluoropropane (HFC- 245fa) and hexafluoropropane (HFC-236fa), a certain amount of waste liquid will be produced during the rectification of HCC-230 and HCC-240. The main components are chlorinated hydrocarbons, which are slightly acidic and have strong Odor, HCC-230, HCC-240 and other waste liquids are very harmful to the human body and the environment. They cannot be discharged directly and must be treated. However, because the waste liquid contains a certain amount of solid impurities, the physical prop

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  • Chlorohydrocarbon waste liquid treating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 200ml of HCC-230 waste liquid and add it to a container equipped with a mechanical stirrer, a heating bath, and a reflux condenser, add 150g of calcium oxide, and connect the condensation receiver and tail gas absorption device, heat after stirring, and control the pressure at 0.090Mpa Carry out heating and dry distillation, and control the temperature of the dry distillation process not to exceed 260° C. until the waste liquid is burned to dryness to obtain 291 g of effluent and 193 g of slag.

[0018] The effluent is directly incinerated, and the slag is harmlessly landfilled.

Embodiment 2

[0020] Same as in Example 1, the pressure was controlled at 0.095Mpa to obtain 245g of effluent and 206g of slag.

Embodiment 3

[0022] Same as in Example 1, take 200ml of HCC-240 waste liquid, control the pressure at 0.092Mpa, change 150g of calcium oxide to 150g of carbide slag, and obtain effluent 194, the amount of slag is 287g.

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PUM

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Abstract

The present invention relates to a chloro hydrocarbon waste liquid treatment method, which comprises the procedures of distillation, incineration, etc,. By adopting a neutralizer to neutralize and a decompress dry distillation technology, the gas phase of the waste liquid breaks away by an organic matter fashion which can be directly incinerated, while the solid phase of the waste liquid is landfilled in a solid waste landfill. The technology of the present invention is capable of effectively solve the problem of waste liquor recovery and discharge, and realizing the innocent treatment of waste liquid; besides, the technology is adapted to the construction of industrialization apparatus and solves the domestic bottleneck problem of freon substitute.

Description

technical field [0001] The invention relates to a treatment method for chlorinated hydrocarbon waste liquid, in particular to a treatment method for waste liquid in the production of pentachloropropane and hexachloropropane. Background technique [0002] 1,1,1,3,3-pentachloropropane (HCC-240), 1,1,1,3,3,3-hexachloropropane (HCC-230) is the production of freon substitute pentafluoropropane (HFC- 245fa) and hexafluoropropane (HFC-236fa), a certain amount of waste liquid will be produced during the rectification of HCC-230 and HCC-240. The main components are chlorinated hydrocarbons, which are slightly acidic and have strong Odor, HCC-230, HCC-240 and other waste liquids are very harmful to the human body and the environment. They cannot be discharged directly and must be treated. However, because the waste liquid contains a certain amount of solid impurities, the physical properties are very viscous. Can not carry out conventional incineration treatment again. [0003] Ther...

Claims

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Application Information

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IPC IPC(8): C02F1/66C02F1/04
Inventor 郑林树郑苏云
Owner JUHUA GROUP TECH CENT
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