EP 1049817 A1 20001108 - SLURRY FOR COATING NON-CARBON METAL-BASED ANODES FOR ALUMINIUM PRODUCTION CELLS
Title (en)
SLURRY FOR COATING NON-CARBON METAL-BASED ANODES FOR ALUMINIUM PRODUCTION CELLS
Title (de)
AUFSCHLÄMMUNG ZUM BESCHICHTEN VON KOHLENSTOFFFREIEN ANODEN AUF METALLBASIS FÜR ZELLEN ZUR ALUMINIUMHERSTELLUNG
Title (fr)
COULIS DE REVETEMENT D'ANODES METALLIQUES EXEMPTES DE CARBONE POUR CELLULES DE PRODUCTION D'ALUMINIUM
Publication
Application
Priority
- IB 9900081 W 19990119
- IB 9800081 W 19980120
- US 12635998 A 19980730
Abstract (en)
[origin: WO9936593A1] A method of coating an electronically conductive and heat resistant substrate of an anode of a cell for the electrowinning of metals, in particular a cell for the electrowinning of aluminium, to protect and make the surface of the anode active for the oxidation of the oxygen ions present in the electrolyte. The method comprises applying onto the substrate a slurry comprising at least one oxide or oxide precursor as a non-dispersed but suspended particulate in a colloidal and/or inorganic polymeric carrier. The applied-slurry is then solidified and made adherent to the substrate upon heat treatment to form an adherent, protective, predominantly oxide-containing coating. The colloidal and/or inorganic polymeric carrier may comprise at least one of alumina, ceria, lithia, magnesia, silica, thoria, yttria, zirconia, tin oxide and zinc oxide. The oxide of the coating may be a chromite or a ferrite, such as a ferrite selected from cobalt, copper, manganese, nickel and zinc.
IPC 1-7
IPC 8 full level
CPC (source: EP)
C25C 3/12 (2013.01); C25C 7/025 (2013.01)
Citation (search report)
See references of WO 9936593A1
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9936593 A1 19990722; AU 1779799 A 19990802; AU 747903 B2 20020530; CA 2317802 A1 19990722; CA 2317802 C 20080401; DE 69933854 D1 20061214; DE 69933854 T2 20070531; EP 1049817 A1 20001108; EP 1049817 B1 20061102; ES 2274613 T3 20070516; NO 20003702 D0 20000719; NO 20003702 L 20000719; NO 326358 B1 20081117
DOCDB simple family (application)
IB 9900081 W 19990119; AU 1779799 A 19990119; CA 2317802 A 19990119; DE 69933854 T 19990119; EP 99900109 A 19990119; ES 99900109 T 19990119; NO 20003702 A 20000719