This invention relates to a method of removing iron and manganese values and recovering cobalt values from a solution containing iron values, manganese values, cobalt values, and optionally other metal values. The method includes the step of introducing into the solution a gas mixture of sulphur dioxide and air or sulphur dioxide and oxygen so as in a single step to oxidise the iron values from the ferrous to the ferric state and to oxidise the manganese values from the manganous to the manganic state and then to precipitate the iron values as ferric oxide/hydroxide and to precipitate the manganese values as manganic oxide, leaving the cobalt values in solution.
申请公布号
CA2471179(A1)
申请公布日期
2003.07.03
申请号
CA20022471179
申请日期
2002.12.20
申请人
CONGO MINERAL DEVELOPMENTS LTD;ANGLO OPERATIONS LIMITED
发明人
MANN, JEREMY WILSON;COLETTE, FRANCOIS FERDINAND JOSEPH;LUNT, DAVID JOHN;ALEXANDER, DOUGLAS;PRYOR, BERNARD ROBERT;RAMSAY, ALLEN GRAHAM;CORTES, GUSTAVO ADOLFO TAPIA;WHYTE, RODNEY MURISON