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Surface oxidised nickel-iron metal anodes for aluminium production 发明授权

2023-11-07 4330 601K 0

专利信息

申请日期 2025-07-09 申请号 AU2003207934
公开(公告)号 AU2003207934B2 公开(公告)日 2008-10-09
公开国别 AU 申请人省市代码 全国
申请人 MOLTECH INVENT S A
简介 (57) Abstract : An anode fbr the electrowinning of aluminium by the electrolysis of alumina in a molten fluoride electrolyte has an electrochemically active integral outside oxide layer obtainable by surface oxidation of a metal alloy which consists of 20 to weight% nickel; 5 to 15 weight% copper; 1.5 to 5 weight% aluminium; 0 to 2 weight% in total of one or more rare earth metals, in articular yttrium; 0 to 2 weight% of further elements, in particular manganese, silicon and carbon; and the balance being iron. The metal alloy of the anode has a copper/nickel weight ratio in the range of 0.1 to 0.5, preferably 0.2 to 0.3.


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