Global Patent Index - EP 0695371 B1

EP 0695371 B1 19991020 - MICROPYRETICALLY-PRODUCED COMPONENTS OF ALUMINIUM PRODUCTION CELLS

Title (en)

MICROPYRETICALLY-PRODUCED COMPONENTS OF ALUMINIUM PRODUCTION CELLS

Title (de)

MIKRO-PYROTECHNISCH-ERZEUGTE BAUTEILE VON ZELLEN FUER DIE ALUMINIUMHERSTELLUNG

Title (fr)

COMPOSANTS, PRODUITS PAR REACTION MICROPYRITIQUE, DE CELLULES DE PRODUCTION D'ALUMINIUM

Publication

EP 0695371 B1 19991020 (EN)

Application

EP 93910631 A 19930419

Priority

US 9303605 W 19930419

Abstract (en)

[origin: WO9424321A1] Components of aluminium production cells made of composite materials comprising ordered aluminide compounds of at least one of nickel, iron and titanium, for use in particular as anodes and cathodes and cell linings in aluminium production cells containing a fluoride-based molten electrolyte containing dissolved alumina and cerium species, are produced by micropyretic reaction of a reaction mixture comprising compacted particulate reactants which react to produce the composite material. The reaction mixture is mixed with a cerium-based colloidal carrier, dried and compacted into a reaction body bonded by the cerium-based colloidal carrier, and the colloid-bonded reaction body is ignited to initiate the micropyretic reaction. One preferred reaction mixture comprises 50 to 90 parts by weight of particulate nickel, 5 to 30 parts by weight of particulate aluminium, 5 to 25 parts by weight of particulate copper and 0 to 15 parts by weight of additives selected from chromium, manganese, vanadium, molybdenum, zirconium, niobium and cerium anmd compounds thereof, as well as compounds of aluminium, nickel, iron, titanium and copper.

IPC 1-7

C22C 1/05; C25C 3/12; C25C 3/08

IPC 8 full level

B22F 3/23 (2006.01); C25C 3/08 (2006.01); C25C 3/12 (2006.01)

CPC (source: EP)

B22F 3/23 (2013.01); C25C 3/08 (2013.01); C25C 3/12 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT NL

DOCDB simple family (publication)

WO 9424321 A1 19941027; AU 4105693 A 19941108; AU 685053 B2 19980115; DE 69326843 D1 19991125; DE 69326843 T2 20000518; EP 0695371 A1 19960207; EP 0695371 B1 19991020; NO 954158 D0 19951018; NO 954158 L 19951018

DOCDB simple family (application)

US 9303605 W 19930419; AU 4105693 A 19930419; DE 69326843 T 19930419; EP 93910631 A 19930419; NO 954158 A 19951018