EP 2140044 B1 20110112 - ALUMINIUM ELECTROWINNING CELL WITH METAL-BASED CATHODES
Title (en)
ALUMINIUM ELECTROWINNING CELL WITH METAL-BASED CATHODES
Title (de)
ALUMINIUM-ELEKTROEXTRAKTIONSZELLE MIT KATHODEN AUF METALLBASIS
Title (fr)
CELLULE D'EXTRACTION ÉLECTROLYTIQUE D'ALUMINIUM AVEC DES CATHODES À BASE DE MÉTAL
Publication
Application
Priority
- IB 2008001031 W 20080422
- IB 2007001177 W 20070425
Abstract (en)
[origin: WO2008132590A2] A cell for the electrowinning of aluminium has one or more anodes (10) facing at least one cathode (20). This cathode comprises: a cathode body (25) made predominantly of at least one hard metal selected from tungsten and molybdenum; and a surface of carbide (26,27) of this hard metal which is integral with the body or which is formed by a layer bonded to the body. The carbide surface forms a cathodic operative surface on which during use aluminium (9) is produced or forms an anchorage surface for an aluminium-wettable ceramic layer (28,29) on which during use aluminium is produced.
IPC 8 full level
C25C 3/08 (2006.01)
CPC (source: EP)
C25C 3/08 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008132590 A2 20081106; WO 2008132590 A3 20081224; AT E495280 T1 20110115; CA 2684041 A1 20081106; DE 602008004488 D1 20110224; EP 2140044 A2 20100106; EP 2140044 B1 20110112; ES 2359541 T3 20110524; NO 20093310 L 20091110; PL 2140044 T3 20110630; SI 2140044 T1 20110531
DOCDB simple family (application)
IB 2008001031 W 20080422; AT 08737543 T 20080422; CA 2684041 A 20080422; DE 602008004488 T 20080422; EP 08737543 A 20080422; ES 08737543 T 20080422; NO 20093310 A 20091110; PL 08737543 T 20080422; SI 200830196 T 20080422