|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||8th International Symposium on High Temperature Metallurgical Processing
||The Recovery of Cobalt from Copper Converter Slag by Reduction-sulfurization Smelting at High Temperature
||Shi Sun, Hongxu Li, Jiaqi Fan, Chao Li, Qi Liu, Zhaobo Liu
|On-Site Speaker (Planned)
With the great demand of consumer electronics (CE) and electric vehicles (EV), cobalt become one of the more scarce energy metals. The recovery of cobalt from a copper converter slag, which contained over 2.4% Co and were piled up as Industrial waste, by reduction-sulfurization smelting was explored. Quantitative analysis of treated slag showed that activated carbon and ferrous sulfide can be used to settle cobalt into matte as Co-Fe alloy. The experiment was carried on at 1673K with a reducing atmosphere of burning electrode graphite crucible. It was found that increasing the amount of activated carbon could get obvious growth trend of recovery rate of Co and ferrous sulfide got horizontal trend. Over 95% Co, 99%Cu and 62% Fe were settled into matte and phases of Co-Fe and Cu were different. Preliminary separation of Co from converter slag by pyrometallurgical smelting is proposed.
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