发明名称 PROCESS FOR RECOVERY OF NICKEL AND COBALT FROM LATERITE ORES USING ION EXCHANGE RESIN
摘要 The process, according to the invention, comprises the following stages: (a) processing (1) of the laterite ore (O) by crushing, scrubbing, attrition, separation, and high-intensity magnetic separation; (b) Leaching (2) of the non-magnetic fraction (CN) obtained form the previous stage (a); (c) optionally, neutralization (3) of the effluent from the leaching and/or solid-liquid separation stages (4); (d) treatment of the effluents from stages (b) or (c) using an ion-exchange hybrid system (5) comprising at least one circuit for removal of impurities and at least one circuit for recovery of nickel and cobalt; (e) elution (6) of the ion-exchange resin used; (f) separation, purification, and recovery (7) of the nickel and cobalt.
申请公布号 US2010196190(A1) 申请公布日期 2010.08.05
申请号 US20070514305 申请日期 2007.11.12
申请人 COMPANHIA VALE DO RIO DOCE 发明人 MENDES FLAVIA DUTRA
分类号 C22C19/07;C22B23/00;C22C19/03;C25C1/08 主分类号 C22C19/07
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