Occurrence State of Carbon and Electrolyte in Anode Carbon Residue From Electrolytic Aluminum

Anode carbon residue is produced in the production of electrolytic aluminum. Its properties need to be studied for secondary utilization. In this paper, mineralogy anode from an aluminum plant Guizhou was studied. The chemical composition, structure, mineral occurrence state main elements, etc, investigated. results show that: mainly composed 14 minerals such as cryolite, cryolithionite, elpasolite and graphite. Among them, opaque are graphite transparent cryolite. Carbon form independent graphite; fluoride fluorite; elpasolite, aluminium oxide magnesium aluminate; sodium elpasolite. mineralogical characteristics electrolyte were studied, which provided a basis separation recovery residue.