|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Leaching of Sb from TROF Furnace Doré Slag
||Petteri Halli, Simon Jolivet, Andreas Klöfverskjöld, Petri Latostenmaa, Benjamin Paul Wilson, Mari Lundström
|On-Site Speaker (Planned)
Doré slag is secondary product of copper electrorefining anode slime treatment. The slag consists mainly of different slag formers, such as borax and silica based minerals together with soda and traces of sealing materi-als. However, Doré slag also contains metals present in the anode slime, such as Ag, Cu, Bi, Sb and Te. At some plants, slag cleaning has been con-ducted utilizing conventional grinding and flotation circuits in order to en-rich the content of precious metals in the slag. Nevertheless, the routine consideration of the slag as a secondary raw material has so far not been adopted on an industrial scale. The current study presents the preliminary results of the nitric acid and chloride leaching of antimony from Doré slag. Chemical and mineralogical analyses (SEM-EDS, AAS, XRD) were performed for the raw material, leaching residue, and leaching solution in order to as-certain the metal recovery and kinetics during leaching.
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