专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明申请

WO2007045034A1 PROCESS FOR RECOVERY OF METAL VALUES FROM MATERIALS CONTAINING ARSENIC AND/OR ANTIMONY 审中-公开
标题翻译：从含有ARSENIC和/或ANTIMONY的材料中回收金属值的方法
公开(公告)号：WO2007045034A1
公开(公告)日：2007-04-26
申请号：PCT/AU2006/001549
申请日：2006-10-19
申请人： DUNDEE PRECIOUS METALS INC , RITCHIE, Ian, Christopher , KETCHAM, Victor, John
发明人： RITCHIE, Ian, Christopher , KETCHAM, Victor, John
IPC分类号： C22B3/06 , C22B11/00 , C22B11/08 , C22B15/00
CPC分类号： C22B3/08 , C22B3/44 , C22B11/08 , C22B15/0071 , C22B15/0089 , C22B30/00 , Y02P10/234 , Y02P10/236
摘要： A method for the recovery of metal values from a metal value-bearing material containing arsenic and/or antimony and a source of sulphate ions such as sulphide ore or concentrate is disclosed. In one form the method comprises the steps of: (a) providing a feed stream comprising a metal value-bearing material containing arsenic and/or antimony and a source of sulphate ions; (b) subjecting the feed stream to oxidative conditions under elevated temperature and pressure conditions in the presence of at least one component selected to decrease the effective concentration of free acid generated during the pressure oxidation step and promote the formation of pH-stable iron (III) sulphate products, thereby forming a slurry comprising a metal value-containing leach solution and a solid leach residue containing pH-stable iron (III) sulphate products and environmentally stable iron-arsenic and/or iron-antimony products; (c) separating the metal value-containing leach solution from the solid leach residue; (d) recovering the metal value (s) from the metal value-containing leach solution; and (e) recovering precious metal values, if present, in the solid leach residue by cyanide leaching.
摘要翻译：公开了一种从含有砷和/或锑的金属含量材料和硫酸根离子源如硫化矿石或浓缩物中回收金属值的方法。在一种形式中，该方法包括以下步骤：（a）提供包含含有砷和/或锑的金属含量材料和硫酸根离子源的进料流; （b）在升高的温度和压力条件下，在至少一种选择降低在压力氧化步骤期间产生的游离酸的有效浓度并促进形成pH稳定的铁（III ）硫酸盐产品，从而形成包含含金属含量的浸出溶液和含有pH稳定的硫酸铁（III）产物和环境稳定的铁 - 砷和/或铁 - 锑产物的固体浸出残渣的浆料; （c）将含金属含量的浸出溶液与固体浸出残渣分离; （d）从含金属含量的浸出溶液中回收金属值; 和（e）通过氰化物浸出回收固体浸出残渣中的贵金属值（如果存在）。

IPRDB

热门服务

关于我们

友情链接

联系方式