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    SYSTEM AND METHOD FOR EXTRACTING BASE METAL VALUES FROM OXIDE ORES
    1.
    发明公开
    SYSTEM AND METHOD FOR EXTRACTING BASE METAL VALUES FROM OXIDE ORES 有权
    可用于提取物质的非贵金属价值的系统和方法氧化矿

    公开(公告)号：EP2195470A1

    公开(公告)日：2010-06-16

    申请号：EP08800241.5

    申请日：2008-08-27

    申请人： Vale Inco Limited

    发明人： PEREIRA, Antonio, Clareti ,  MENDES, Flavia, Dutra ,  BERNI, Tiago, Valentim ,  VAHED, Ahmed

    IPC分类号： C22B23/00 ,  C22B15/00

    CPC分类号： C22B1/08 ,  C22B3/10 ,  C22B23/005 ,  C22B23/04 ,  C22B23/0407 ,  C22B23/0453 ,  C22B23/0461 ,  Y02P10/234

    摘要： A method for recovering base metal values from oxide ore is provided by the present disclosure. The ore includes a first metal selected from the group consisting at least one of iron and aluminum and a second metal selected from the group consisting of at least one of nickel, cobalt and copper. The method includes the steps of: contacting the oxide ore with hydrogen chloride gas to obtain chlorides of the first and second metals and subjecting at least the first and second metals to pyrohydrolysis at a predetermined temperature to decompose the chlorides of the first metal into oxides. The method also includes the step of mixing the oxides of the first metal and the chlorides of the second metal in an aqueous solution to dissolve the chlorides of the second metal and recovering the dissolved ions of the second metal from the aqueous solution.