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2. 发明申请

WO2009050119A1 RECOVERY OF RESIDUES CONTAINING COPPER AND OTHER VALUABLE METALS 审中-公开
标题翻译：包含铜和其他有价值金属的残留物的恢复
公开(公告)号：WO2009050119A1
公开(公告)日：2009-04-23
申请号：PCT/EP2008/063628
申请日：2008-10-10
申请人： PAUL WURTH S.A. , ROTH, Jean-Luc , SOLVER, Christophe
发明人： ROTH, Jean-Luc , SOLVER, Christophe
IPC分类号： C22B7/04
CPC分类号： C22B7/003 , C22B4/005 , C22B5/10 , C22B7/04 , C22B9/05 , C22B15/0054 , C22B15/006 , Y02P10/212 , Y10S75/961
摘要： A process for recovering non-ferrous metals, in particular copper, nickel and cobalt, from metallurgical residues containing these non-ferrous metals at an oxidation state of greater than or equal to zero, in an alternating current type plasma arc electric furnace comprising a plurality of electrodes, containing a liquid copper heel covered by a fluid slag comprising at least one fusion- reduction phase, comprising charging of metallurgical residues comprising the non-ferrous metals onto the heel contained in the plasma arc electric furnace, fusion of the metallurgical residues in the fluid slag or at the slag-metal bath interface, reduction of at least the non-ferrous metals to oxidation state zero, and intense stirring of the copper heel by injection of inert gas, preferably nitrogen and/or argon, so as to avoid crust formation and to accelerate the reduction reaction and to cause the copper-miscible non-ferrous metals to pass into the copper heel.
摘要翻译：一种在含有大于或等于零的氧化态的含有这些有色金属的冶金残渣中回收有色金属，特别是铜，镍和钴的方法，包括多个等离子体电弧炉的电极，其包含由包含至少一个熔融还原相的流体渣覆盖的液体铜脚跟，包括将包含有色金属的冶金残渣装载到等离子体电弧电炉中所含的脚跟上，熔融金属残留物流体渣或渣 - 金属浴界面，至少将有色金属还原为氧化态为零，以及通过注入惰性气体，优选氮气和/或氩气强烈搅拌铜脚跟，以避免加速还原反应并使铜混溶的有色金属进入铜脚跟。

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