EP 1240364 A2 20020918 - METAL-BASED ANODES FOR ALUMINIUM ELECTROWINNING CELLS
Title (en)
METAL-BASED ANODES FOR ALUMINIUM ELECTROWINNING CELLS
Title (de)
ANODEN AUF BASIS VON METALLEN FÜR ELEKTROLYSEZELLEN ZUR ALUMINIUMGEWINNUNG
Title (fr)
ANODES A BASE METALLIQUE POUR CELLULES D'EXTRACTION ELECTROLYTIQUE D'ALUMINIUM
Publication
Application
Priority
- IB 0001814 W 20001206
- IB 9901977 W 19991209
Abstract (en)
[origin: WO0142534A2] 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.
IPC 1-7
IPC 8 full level
C25C 3/12 (2006.01)
CPC (source: EP)
C25C 3/12 (2013.01)
Citation (search report)
See references of WO 0142534A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0142534 A2 20010614; WO 0142534 A3 20020117; AT E290106 T1 20050315; AU 1544401 A 20010618; CA 2393426 A1 20010614; DE 60018464 D1 20050407; DE 60018464 T2 20050728; EP 1240364 A2 20020918; EP 1240364 B1 20050302; ES 2234697 T3 20050701; NO 20022714 D0 20020607; NO 20022714 L 20020607
DOCDB simple family (application)
IB 0001814 W 20001206; AT 00977813 T 20001206; AU 1544401 A 20001206; CA 2393426 A 20001206; DE 60018464 T 20001206; EP 00977813 A 20001206; ES 00977813 T 20001206; NO 20022714 A 20020607