发明名称 |
METHOD AND APPARATUS FOR REMOVING/RECOVERING COPPER FROM COPPER-CONTAINING ACIDIC WASTE LIQUID AND PROCESS FOR PRODUCING COPPER-CONTAINING SUBSTANCE |
摘要 |
<p>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.</p> |
申请公布号 |
KR20100101638(A) |
申请公布日期 |
2010.09.17 |
申请号 |
KR20107015094 |
申请日期 |
2008.08.28 |
申请人 |
EBARA ENGINEERING SERVICE CO., LTD. |
发明人 |
KOBAYASHI ATSUSHI;SUZUKI TOSHIHIRO;SATO KAORI;KUBOTA YOKO |
分类号 |
C22B15/00;C02F1/62;C22B3/44;C22B7/00 |
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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