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公开(公告)号：EP2288736A1
公开(公告)日：2011-03-02
申请号：EP09761186.7
申请日：2009-06-15
发明人： RODRIGUEZ, Michael
CPC分类号： C22B1/00 , C22B3/02 , C22B23/005 , C22B23/0407 , C22B23/043 , Y02P10/234
摘要： A hydrometallurgical method for leaching a base metal in a combined pressure acid leach comprises the steps of combining a sulphide ore (14) or concentrate with a laterite or other oxide ore (16) and mixing them together to form a slurry in a milling circuit (12). The combined slurry is leached in a pressure acid leach circuit (20) comprising a series of pressure Pachuca (tanks 22). An oxidant such as oxygen or air is provided to the pressure acid leach circuit such that the oxidant allows for the conversion of substantially all of the sulphide to transition through to sulphate.
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2.发明公开RHEOLOGICAL METHOD FOR THE HYDROMETALLURGICAL RECOVERY OF BASE METALS FROM ORES 审中-公开流变方法HYDRO冶金生产非贵金属从矿石中的
公开(公告)号：EP2288735A1
公开(公告)日：2011-03-02
申请号：EP09761187.5
申请日：2009-06-15
发明人： RODRIGUEZ, Michael
CPC分类号： C22B1/00 , C01G53/00 , C01G53/11 , C01P2006/22 , C22B3/02 , C22B3/22 , C22B23/005 , C22B23/0415 , C22B23/043 , Y02P10/234
摘要： A rheological method for the hydrometallurgical recovery of base metals such as nickel from ores comprises the steps of combining a sulphide ore or concentrate (10) with a laterite or other oxide ore (12) and milling them together in a milling circuit (14) to form a combined slurry with improved rheological characteristics. The milled combined ore from the milling circuit (14) is subjected to a screening step in the screening circuit (18). Undersize ore is fed from the screening circuit (18) to a slurry tank (19), and the combined slurry is then pumped to a pressure acid leach circuit.
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