EP 0786020 A1 19970730 - TREATED CARBON OR CARBON-BASED CATHODIC COMPONENTS OF ALUMINIUM PRODUCTION CELLS
Title (en)
TREATED CARBON OR CARBON-BASED CATHODIC COMPONENTS OF ALUMINIUM PRODUCTION CELLS
Title (de)
BEHANDELTER KOHLENSTOFF ODER KATHODENKOMPONENTEN AUF KOHLENSTOFF-BASIS AUS ALUMINIUMPRODUKTIONSZELLEN
Title (fr)
COMPOSANTS CATHODIQUES TRAITES, A BASE DE CARBONE OU EN CARBONE POUR DES CELLULES DE PRODUCTION D'ALUMINIUM
Publication
Application
Priority
- US 9311380 W 19931123
- US 9303683 W 19930419
Abstract (en)
[origin: WO9424337A1] Carbon or carbon-based cathodes and cell bottoms of electrolytic cells for the production of aluminium in particular by the electrolysis of alumina in a molten halide electrolyte such as cryolite, are treated to better resist intercalation of sodium in the cell operating conditions by impregnation and/or coating with colloidal alumina ceria, cerium acetate, silica, alumina, lithia, yttria, thoria, zirconia, magnesia or monoaluminium phosphate followed by drying and heat treatment.
IPC 1-7
IPC 8 full level
C04B 41/50 (2006.01); C04B 41/52 (2006.01); C25C 3/08 (2006.01)
CPC (source: EP)
C04B 41/5027 (2013.01); C04B 41/52 (2013.01); C25C 3/08 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9424337 A1 19941027; AU 5617294 A 19941108; AU 674718 B2 19970109; CA 2160468 A1 19941027; CA 2160468 C 20011002; EP 0786020 A1 19970730; EP 0786020 A4 19970730; NO 954159 D0 19951018; NO 954159 L 19951018; PL 311207 A1 19960205; SK 128095 A3 19960306
DOCDB simple family (application)
US 9311380 W 19931123; AU 5617294 A 19931123; CA 2160468 A 19931123; EP 94901664 A 19931123; NO 954159 A 19951018; PL 31120793 A 19931123; SK 128095 A 19931123