发明授权
- 专利标题： Oxidation process for releasing metal values in which nitric acid is regenerated in situ
- 专利标题（中）： 用于释放原位再生硝酸的金属值的氧化工艺
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申请号： US14815申请日： 1987-02-13
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公开(公告)号： US4834793A公开(公告)日： 1989-05-30
- 发明人: John C. Schneider , Gezinus Van Weert , Kenneth J. Fair
- 申请人： John C. Schneider , Gezinus Van Weert , Kenneth J. Fair
- 申请人地址： CAX Brampton
- 专利权人： Hydrochem Developments Ltd.
- 当前专利权人： Hydrochem Developments Ltd.
- 当前专利权人地址： CAX Brampton
- 主分类号： C22B3/00
- IPC分类号： C22B3/00 ; C22B3/06 ; C22B15/00 ; C22B34/34 ; C22B34/36 ; C22B60/02
摘要：
An oxidation process for releasing a metal of interest in an ore is described. The process is especially useful for releasing a metal of interest entrapped in a refractory ore. The process comprises reacting the ore with nitric acid until sufficient oxidation has occurred to release the metal of interest so that it may be recovered by conventional techniques. Nitric acid is regenerated in situ by aerating the liquid medium and contacting it with the off gases generated by the oxidation. The process is continuous and the nitric acid is recycled to the reactor preferably after removal of accumulated sulfate.
公开/授权文献
- US5970136A IDSN capacity expansion for remote terminal sites 公开/授权日：1999-10-19
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