发明名称 |
Metal-based anodes for aluminium electrowinning cells |
摘要 |
An anode of a cell for the electrowinning of aluminium comprises a nickel-iron alloy substrate having a nickel metal rich outer portion with an electrolyte pervious integral nickel-iron oxide containing surface layer which adheres to the nickel metal rich outer portion of the nickel-iron alloy and which in use is electrochemically active for the evolution of oxygen. The oxide surface layer has a thickness such that, during use, the voltage drop therethrough is below the potential of dissolution of nickel-iron oxide. The nickel metal rich outer portion may contain cavities some or all of which, after oxidation, are partly or completely filled with iron oxides to form iron oxide containing inclusions.
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申请公布号 |
US2003221970(A1) |
申请公布日期 |
2003.12.04 |
申请号 |
US20020161318 |
申请日期 |
2002.06.03 |
申请人 |
DE NORA VITTORIO;DURUZ JEAN-JACQUES |
发明人 |
DE NORA VITTORIO;DURUZ JEAN-JACQUES |
分类号 |
C25C3/12;(IPC1-7):C25C3/12;C25C3/08 |
主分类号 |
C25C3/12 |
代理机构 |
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代理人 |
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主权项 |
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