Treatment method of waste anhydrous aluminum chloride

A technology of anhydrous aluminum chloride and treatment method, which is applied in the direction of solid waste removal, etc., can solve problems such as deliquescence and explosion of aluminum chloride, and achieve the effect of safe and stable operation and simple operation of the treatment process

Active Publication Date: 2021-06-11
云南大地丰源环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum chloride is prone to deliquescent, exothermic due to hydration, may explode when exposed to water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Under normal temperature conditions, use an electronic balance to weigh 150g of a concentrated sulfuric acid solution with a waste concentration of about 90% into a beaker, then weigh 100g of waste anhydrous aluminum chloride, and slowly add the waste anhydrous aluminum chloride to the beaker of the pre-weighed concentrated sulfuric acid. , stir evenly to make it fully react. After the reaction is complete (no white mist will be generated during the reaction process, use a hydrogen chloride gas detector to detect, the hydrogen chloride content is low, and the value of the hydrogen chloride gas detector shows a maximum of 4ppm), the reaction mixture Slowly pour it into waste alkali water to adjust the pH to 6.5-7.5 (the added amount of waste alkali water is about 200-250g). After pH adjustment, pour the waste liquid into the solidified mold, and add incineration fly ash to absorb water (incineration fly ash). The addition amount is determined according to the water absorp...

Embodiment 2

[0021] Under normal temperature conditions, use an electronic scale to weigh 15kg of a waste concentrated sulfuric acid solution with a concentration of about 87% into a plastic bucket, weigh 10kg of waste anhydrous aluminum chloride, and slowly add the waste anhydrous aluminum chloride to the plastic pre-weighed with concentrated sulfuric acid. In the barrel, stir evenly to make it fully react. After the reaction is complete (there will be no white mist during the reaction process, use a hydrogen chloride gas detector to detect, the hydrogen chloride content is low, and the value of the hydrogen chloride gas detector shows a maximum of 12ppm), the reaction The mixture is slowly poured into waste alkali water to adjust the pH to 6.5-7.5 (the added amount of waste alkali water is about 20kg-25kg). The amount of fly ash added is determined according to the water absorption, and the addition amount is 20-22kg). After water absorption, 2-2.5kg of cement is added for curing. After c...

Embodiment 3

[0023] Under normal temperature conditions, use an electronic scale to weigh 3t of the concentrated sulfuric acid solution with a waste concentration of about 85% into the comprehensive reaction tank, then use an electronic scale to weigh 2t of waste anhydrous aluminum chloride, and slowly add the waste anhydrous aluminum chloride. In the comprehensive reaction tank of concentrated sulfuric acid, stir evenly to make it fully react. After the reaction is complete (no white fog will be generated during the reaction process, use a hydrogen chloride gas detector to detect it. The hydrogen chloride content is low. 20ppm), slowly pour the reaction mixture into waste alkali water to adjust the pH to 6.5-7.5 (the amount of waste alkali water added is about 4t-5t), after pH adjustment, pump the waste liquid into the solidification pit, add incineration fly ash Carry out water absorption (the amount of incineration fly ash is determined according to the water absorption, and the amount o...

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PUM

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Abstract

The invention discloses a treatment method of waste anhydrous aluminum chloride. The method comprises the following steps of at room temperature, adding the waste anhydrous aluminum chloride into waste concentrated sulfuric acid, uniformly stirring, after the reaction is finished, adding a reaction mixture into waste alkali liquor, adjusting the pH value of the reaction liquor to 6.5-7.5, then adding incineration fly ash, uniformly stirring, filtering, finally, adding cement for solidifying and curing for 3-7 days, and then performing safe landfill. The method has the advantages that the purposes of co-processing waste and treating waste with waste are achieved, the waste anhydrous aluminum chloride can be safely processed, secondary pollution to the environment is avoided, and the economic and social benefits are remarkable.

Description

technical field [0001] The invention belongs to the technical field of harmless treatment of hazardous wastes, and particularly relates to a treatment method of waste anhydrous aluminum chloride. Background technique [0002] Anhydrous aluminum trichloride, white granules or powder, strong hydrochloric acid odor, light yellow industrial product. Soluble in water, alcohol, chloroform, carbon tetrachloride, slightly soluble in benzene. Molten aluminum chloride does not conduct electricity easily, unlike most salts that contain halide ions, such as sodium chloride. The aqueous solution of aluminum chloride is completely dissociated and is a good electrical conductor. Aluminum chloride is colorless transparent crystal or white and slightly yellowish crystalline powder. Aluminum chloride is prone to deliquescence and may explode when exposed to water due to exothermic hydration. It will partially hydrolyze, releasing hydrogen chloride or hydrochloric acid with a large amount ...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00
Inventor 李行德罗朝东字银翠赵卫武李超
Owner 云南大地丰源环保有限公司
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