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1. 发明申请

WO2011015991A3 PROCESS FOR THE RECOVERY OF METALS SUCH AS NICKEL FROM AN IRON- CONTAINING ORE BY LEACHING WITH ACIDIC SULFATE SOLUTION 审中-公开
标题翻译：通过用酸性溶液浸出从含铁的金属中恢复金属的方法
公开(公告)号：WO2011015991A3
公开(公告)日：2011-05-19
申请号：PCT/IB2010053518
申请日：2010-08-03
申请人： ANGLO OPERATIONS LTD , SMIT JAN TJEERD , STEYL JOHANN DU TOIT , PELSER MAX
发明人： SMIT JAN TJEERD , STEYL JOHANN DU TOIT , PELSER MAX
IPC分类号： C22B3/08 , C22B3/44 , C22B23/00
CPC分类号： C22B23/0415 , C22B3/08 , C22B3/44 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： A process is described for leaching a value metal from an iron-containing ore, the process including the steps of leaching the ore in an acidic sulfate solution so as to form an iron-sulfate salt in a leach solution; adding sulfur dioxide to the leach solution during and/or after the leaching to regenerate acid; and recovering the iron-sulfate salt from the leach solution. The value metal is typically Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, Ag, Au or a platinum group metal. The leaching solution can also include chlorides. One or more value metals, such as nickel and/or cobalt, may be recovered with the iron sulfate salts and can subsequently be separated from the iron sulfate salts. The recovered iron sulfate salts can be decomposed to iron oxides without decomposing the sulfate salts of the other metals or whilst also decomposing the sulfate salts of the other metals, those other metals being recovered by posttreatment of the iron oxide calcine. The regenerated acid is typically recycled within the leach process.
摘要翻译：描述了一种从含铁矿石中浸出值金属的方法，该方法包括以下步骤：将矿石浸入酸性硫酸盐溶液中以在浸出溶液中形成硫酸铁盐; 在浸出期间和/或之后向浸出溶液中加入二氧化硫以再生酸; 并从浸出溶液中回收硫酸铁盐。值金属通常是Zn，Cu，Ti，Al，Cr，Ni，Co，Mn，Fe，Pb，Na，K，Ca，Ag，Au或铂族金属。浸出液也可以包括氯化物。可以用硫酸铁盐回收一种或多种有价值的金属，例如镍和/或钴，并随后可以与硫酸铁盐分离。回收的硫酸铁盐可以分解成铁的氧化物而不分解其它金属的硫酸盐，也可以分解其它金属的硫酸盐，通过后处理氧化铁煅烧而回收的其它金属。再生酸通常在浸出过程中循环使用。

2. 发明申请

WO2011015991A2 PROCESS FOR THE RECOVERY OF METALS FROM AN IRON-CONTAINING ORE 审中-公开
标题翻译：从含铁矿石中恢复金属的工艺
公开(公告)号：WO2011015991A2
公开(公告)日：2011-02-10
申请号：PCT/IB2010/053518
申请日：2010-08-03
申请人： ANGLO OPERATIONS LIMITED , SMIT, Jan Tjeerd , STEYL, Johann du Toit , PELSER, Max
发明人： SMIT, Jan Tjeerd , STEYL, Johann du Toit , PELSER, Max
IPC分类号： C22B3/08 , C22B23/00 , C22B3/44
CPC分类号： C22B23/0415 , C22B3/08 , C22B3/44 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： A process is described for leaching a value metal from an iron-containing ore, the process including the steps of leaching the ore in an acidic sulfate solution so as to form an iron-sulfate salt in a leach solution; adding sulfur dioxide to the leach solution during and/or after the leaching to regenerate acid; and recovering the iron-sulfate salt from the leach solution. The value metal is typically Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, Ag, Au or a platinum group metal. The leaching solution can also include chlorides. One or more value metals, such as nickel and/or cobalt, may be recovered with the iron sulfate salts and can subsequently be separated from the iron sulfate salts. The recovered iron sulfate salts can be decomposed to iron oxides without decomposing the sulfate salts of the other metals or whilst also decomposing the sulfate salts of the other metals, those other metals being recovered by posttreatment of the iron oxide calcine. The regenerated acid is typically recycled within the leach process.
摘要翻译：描述了一种用于从含铁矿石中浸出值金属的方法，该方法包括以下步骤：将矿石浸入酸性硫酸盐溶液中以在浸出溶液中形成硫酸铁盐; 在浸出期间和/或之后向浸出溶液中加入二氧化硫以再生酸; 并从浸出溶液中回收硫酸铁盐。值金属通常是Zn，Cu，Ti，Al，Cr，Ni，Co，Mn，Fe，Pb，Na，K，Ca，Ag，Au或铂族金属。浸出液也可以包括氯化物。可以用硫酸铁盐回收一种或多种有价值的金属，例如镍和/或钴，并且随后可以与硫酸铁盐分离。回收的硫酸铁盐可以分解成铁的氧化物而不分解其它金属的硫酸盐，同时也分解其它金属的硫酸盐，那些其它金属是通过后处理氧化铁煅烧而回收的。再生酸通常在浸出过程中循环使用。

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