New Technology of Efficient Disposal of Aluminum Ash in Aluminum Industry
Aiming at the prominent problems of high energy consumption and low efficiency in the dispos-al of hazardous waste aluminum ash in the aluminum industry,through process and technological innova-tion,based on thermodynamic analysis,new disposal technologies such as grinding,microwave field and inert large particle assisted strengthening were proposed.Chlorine,silicon chloride and chlorine-silicon chloride were used as chlorinating agents,respectively.Five new processes for efficient chlorination of a-luminum ash were developed(a method for efficient utilization of aluminum ash with chlorine as chlori-nating agent,a method for high-value utilization of secondary aluminum ash with chlorine as chlorinating agent,a method for efficient preparation of aluminum nitride with aluminum ash with chlorine as chlorina-ting agent,a method for efficient preparation of aluminum fluoride with aluminum ash with silicon chlo-ride as chlorinating agent,a method for preparation of aluminum fluoride with aluminum ash with chlo-rine-silicon chloride as chlorinating agent).These five processes can effectively improve the resource uti-lization rate and disposal efficiency of aluminum ash,and realize the deep high-value utilization of alumi-num ash(preparation of aluminum nitride and aluminum fluoride),which has significant economic and social benefits.
万方数据
维普
