发明授权
US6010630A Method for recovering at least one metal from an acidified waste water
sludge
失效
从酸化废水污泥中回收至少一种金属的方法
- 专利标题： Method for recovering at least one metal from an acidified waste water sludge
- 专利标题（中）： 从酸化废水污泥中回收至少一种金属的方法
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申请号： US601052申请日： 1996-06-10
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公开(公告)号： US6010630A公开(公告)日： 2000-01-04
- 发明人: Pekka Oinas , Simo Jokinen
- 申请人： Pekka Oinas , Simo Jokinen
- 申请人地址： SEX Helsingborg
- 专利权人： Kemira Kemi AB
- 当前专利权人： Kemira Kemi AB
- 当前专利权人地址： SEX Helsingborg
- 优先权： FIX933751 19930826
- 主分类号： C02F1/26
- IPC分类号： C02F1/26 ; C02F1/72 ; B01D11/02
摘要：
A method for recovering at least one metal from an acidified waste water sludge by liquid-liquid extraction by providing an acidified waste water sludge containing ions of at least one metal and organic material, treating the waste water with an oxidizer to convert the organic material into a form that does not have an unfavorable effect on a subsequent liquid-liquid extraction, and subjecting the treated, acidified waste water sludge to a liquid-liquid extraction thereby obtaining an organic phase loaded with ions of said at least one metal, and subsequently recovering ions of said at least one metal from said organic phase.
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