发明名称 |
VERFAHREN ZUR HERSTELLUNG VON KUPFERFOLIEN |
摘要 |
<p>The present invention relates to a process for making copper foil from copper-bearing material comprising: (A) contacting said copper-bearing material with an effective amount of at least one aqueous leaching solution to dissolve copper ions into said leaching solution and form a copper-rich aqueous leaching solution; (B) contacting said copper-rich aqueous leaching solution with an effective amount of at least one water-insoluble extractant to transfer copper ions from said copper-rich aqueous leaching solution to said extractant to form a copper-rich extractant and a copper-depleted aqueous leaching solution; (C) separating said copper-rich extractant from said copper-depleted aqueous leaching solution; (D) contacting said copper-rich extractant with an effective amount of at least one aqueous stripping solution to transfer copper ions from said extractant to said stripping solution to form a copper-rich stripping solution and a copper-depleted extractant; (E) separating said copper-rich stripping solution from said copper-depleted extractant; (F) flowing said copper-rich stripping solution between an anode and a rotating cathode, and applying an effective amount of voltage across said anode and said cathode to deposit copper on said cathode; and (G) continuously removing copper foil from said cathode.</p> |
申请公布号 |
DE69422646(T2) |
申请公布日期 |
2000.05.31 |
申请号 |
DE1994622646T |
申请日期 |
1994.03.17 |
申请人 |
ELECTROCOPPER PRODUCTS LTD., CHANDLER |
发明人 |
CLOUSER, SIDNEY J.;EAMON, MICHAEL A.;JORDAN, THOMAS L.;KOHUT, STEPHEN J. |
分类号 |
B01D11/02;C08J5/20;C22B3/04;C22B3/14;C22B3/24;C22B3/26;C22B15/00;C25C1/12;C25D1/04;C25D5/04;C25D21/14;(IPC1-7):C25D5/04;C22B3/30;C22B3/08;C25D7/06;C22B7/04;C22B7/00;C22B3/00;C22B3/20 |
主分类号 |
B01D11/02 |
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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