发明申请
- 专利标题: Heavy metal stabilization using wet process phosphoric acids and complexing combinations, particularly for mining waste
- 专利标题(中): 重金属稳定使用湿法磷酸和络合组合,特别是对于采矿废料
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申请号: US10677161申请日: 2003-10-01
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公开(公告)号: US20040068156A1公开(公告)日: 2004-04-08
- 发明人: Keith E. Forrester
- 主分类号: A62D003/00
- IPC分类号: A62D003/00
摘要:
The invention pertains to a method for reducing the leaching of heavy metal from heavy metal the surface of a heavy metal bearing material or waste. The method includes contacting the heavy metal bearing material or waste with a wet process phosphoric acid, optional complexing source and optional surfactant.
公开/授权文献
- US3154056A Finger ring pencil holder 公开/授权日:1964-10-27
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