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2. 发明申请

WO2004005556A1 PROCESS FOR LEACHING PRECIOUS METALS 审中-公开
标题翻译：浸出重金属的方法
公开(公告)号：WO2004005556A1
公开(公告)日：2004-01-15
申请号：PCT/AU2003/000855
申请日：2003-07-02
申请人： COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION , AYLMORE, Mark, Graham
发明人： AYLMORE, Mark, Graham
IPC分类号： C22B3/04
CPC分类号： C22B11/04 , C22B3/12 , C22B3/14 , Y02P10/234
摘要： A process for leaching precious metals such as gold from an ore such as a sulphide ore, the process including the steps of milling an ore containing a precious metal to produce a milled ore, contacting the milled ore with water, an alkaline reagent, a suitable source of oxygen and a suitable source of sulfur (which may be the ore itself) in amounts sufficient to generate at least 0.02 mol/L thiosulfate in situ, and leaching the milled ore into a thiosulfate containing aqueous phase. The thiosulfate generated in situ may constitute at least 30% of the thiosulfate required to effect precious metal extraction into the aqueous phase. The process enables a significant proportion or all of the thiosulfate required to effect leaching of the precious metal to be generated in situ, thus reducing or avoiding the cost and potential difficulties associated with the separate addition of thiosulfate solution.
摘要翻译：一种从诸如硫化矿石的矿石中浸出贵金属如金的方法，该方法包括以下步骤：研磨含有贵金属的矿石，以生产研磨的矿石，使研磨的矿石与水接触，碱性试剂，合适的来源的氧气和合适的硫源（其可以是矿石本身）的量足以在原位产生至少0.02mol / L的硫代硫酸盐，并将研磨的矿石浸入含硫代硫酸盐的水相中。原位产生的硫代硫酸盐可能构成至少30％的硫代硫酸盐，用于将贵金属萃取到水相中。该方法使得所需的大部分或全部硫代硫酸盐能够实现原位产生的贵金属的浸出，从而减少或避免与单独加入硫代硫酸盐溶液相关的成本和潜在困难。

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