Method for preparing elemental arsenic through diaphragm electrolysis

The invention provides a method for preparing elemental arsenic through diaphragm electrolysis, and relates to the field of solid waste disposal. The method for preparing the elementary substance arsenic through diaphragm electrolysis comprises the following steps: dissolving an arsenic-containing raw material with tin salt, acid and water to obtain a pre-electrolysis solution, then carrying out diaphragm electrolysis to obtain slurry containing the elementary substance arsenic, and carrying out solid-liquid separation to obtain the elementary substance arsenic and a post-electrolysis solution. According to the method for preparing the elemental arsenic through diaphragm electrolysis, the technological process is short, the conversion efficiency is high, equipment is simple, operation is easy to control, compared with the prior art, the arsenic conversion cost and the environmental risk are greatly reduced, and remarkable economic and environmental benefits are achieved. 本申请提供一种隔膜电解制备单质砷的方法，涉及固体废弃物处置领域。隔膜电解制备