发明名称 |
METHOD AND APPARATUS FOR REMOVING AND RECOVERING COPPER FROM COPPER-CONTAINING ACIDIC WASTE LIQUID AND METHOD FOR PRODUCING COPPER-CONTAINING SUBSTANCE |
摘要 |
The present invention relates to a method and apparatus for removing and recovering copper by treating an acidic waste liquid containing copper ions such as an etching waste liquid resulting from etching a copper printed board in an etching solution of cupric chloride and a waste liquid after renewing a plating bath liquid in producing electrolytic copper foil. The present invention relates to a copper recovering method of recovering copper from a copper-containing acidic waste liquid by adding a liquid mixture of a copper-containing acidic waste liquid and an oxidizing agent to an alkaline agent solution while a pH of the alkaline agent solution to which the liquid mixture has been added is being controlled so as not to decrease to seven or lower even for a moment, and by obtaining a solid material whose main component is copper oxide.
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申请公布号 |
US2010294081(A1) |
申请公布日期 |
2010.11.25 |
申请号 |
US20080812252 |
申请日期 |
2008.08.28 |
申请人 |
KOBAYASHI ATSUSHI;SUZUKI TOSHIHIRO;SATO KAORI;KUBOTA YOKO |
发明人 |
KOBAYASHI ATSUSHI;SUZUKI TOSHIHIRO;SATO KAORI;KUBOTA YOKO |
分类号 |
C22B15/00;C01G3/02;C22B3/02 |
主分类号 |
C22B15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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