Status of research on resource utilization and harmless treatment of arsenic-alkali residue in antimony smelting
Arsenic-alkali residue from antimony smelting is the waste residue produced in the refining process of crude antimony refining,which contains highly toxic sodium arsenate,which is easily soluble in water and highly toxic hazardous.Because of the immaturity of resource utilization technology,a large amount of arsenic-alkali residue has been stockpiled in China,which greatly restricts the development of antimony smelting industry.This paper analyzes the current status of arsenic alkali residue solid waste treatment process,and discusses the major treatment methods of arsenic alkali residue.Through comparative analysis,it is suggested that further treatment of arsenic-alkali residue to obtain non-toxic metal arsenic which can be used as semiconductor raw material is a more environmentally friendly research direction.
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