发明名称 |
Low temperature operating cell for the electrowinning of aluminium |
摘要 |
A cell for the electrowinning of aluminum using anodes (10) made from a alloy of iron with nickel and/or cobalt is arranged to produce aluminum of low contamination and of commercial high grade quality. The cell comprises a cathode (20) of drained configuration and operates at reduced temperature without formation of a crust or ledge of solidified electrolyte. The cell is thermally insulated using an insulating cover (65,65a,65b,65c) and an insulating sidewall lining (71). The molten electrolyte (30) is substantially saturated with alumina, particularly on the electrochemically active anode surface, and with species of at least one major metal present at the surface of the nickel-iron alloy based anodes (10). The cell is preferably operated at reduced temperature from 730° to 910° C. to limit the solubility of these metal species and consequently the contamination of the product aluminum.
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申请公布号 |
US2003010628(A1) |
申请公布日期 |
2003.01.16 |
申请号 |
US20020133198 |
申请日期 |
2002.04.27 |
申请人 |
DE NORA VITTORIO;DURUZ JEAN-JACQUES |
发明人 |
DE NORA VITTORIO;DURUZ JEAN-JACQUES |
分类号 |
C25C3/06;C25C3/08;(IPC1-7):B01D59/40;B01D1/00;B01D59/50;C25C3/00;C25C3/12;C25C5/04;C25C7/00 |
主分类号 |
C25C3/06 |
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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