Cobalt Recovery by the Chlorination-Volatilization Method
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This communication presented the chlorination-volatilization of cobalt using calcium chloride. Effects of variables on the cobalt volatilization rate were investigated, including the flow rate, oxygen partial pressure, and water vapor content of the carrier gas, the roasting time, and the temperature. It was found that the chlorination of cobalt oxide was mainly in the form of indirect chlorination and cobalt volatilized in the form of gaseous CoCl2.
The authors gratefully acknowledge the research funding from the National Natural Science Foundation of China (Grant No. 51804292) and the Key Deployment Project of The Chinese Academy of Sciences (Grant No. ZDRW-ZS-2018-1-2).
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