Aluminum electrolysis dangerous solid waste comprehensive treatment method and resource utilization

Abstract

The invention provides an aluminum electrolysis dangerous solid waste comprehensive treatment method and resource utilization. According to the aluminum electrolysis dangerous solid waste comprehensive treatment method, other solid waste, except for waste anodes and waste aluminum dust, of aluminum electrolysis can be recycled, treatment processing is carried out through multiple procedures of primary election impurity removal, magnetic separation iron removal, flotation carbon removal, smelting reduction and the like, all aluminum electrolysis solid waste is effectively treated, renewable resources are all comprehensively utilized, and finally aluminum-silicon alloy products, electrolyte products for aluminum electrolysis, fuel powdered carbon products and the like are produced; and solidwaste treatment of the aluminum electrolysis industry is achieved, valuable resources containing aluminum, silicon, fluorine and the like are recycled and reutilized, and the good aims of protectingthe environment, saving resources and creating benefits are achieved.

Description

technical field [0001] The invention belongs to the fields of aluminum electrolysis solid waste treatment and resource utilization and aluminum metallurgy, and in particular relates to a comprehensive treatment method and resource utilization of aluminum electrolysis hazardous solid waste. Background technique [0002] Electrolytic aluminum solid waste treatment and comprehensive utilization of resources to produce cast silicon-aluminum alloys and electrolytes for aluminum electrolysis is an effective way to control the pollution of electrolytic aluminum solid waste and improve the environment in terms of environmental protection; for the metallurgical industry, it has opened up A new low-cost source of aluminum alloys and electrolytes; in terms of mineral resources, the use of aluminum electrolysis solid waste to extract silicon aluminum alloys and electrolytes is undoubtedly equivalent to adding a lot of aluminum, silicon, and fluorite (fluorine) mines, alleviating the need...

AI Technical Summary

Problems solved by technology

Due to the influence of various factors, carbon slag, waste alumina mixture containing alumina, silicon oxide, and fluoride (electrolyte) will inevitably be produced during the production process of aluminum electrolysis, planing charge and waste lining of the electrolytic cell after overhaul (Slag), according to the classification regulations of the "National List of Hazardous Wastes", these are solid hazardous wastes, direct discharge will cause serious pollution to the environment, and have great harm to animals and plants

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