C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/52 (2006.01) C04B 35/528 (2006.01) C04B 35/65 (2006.01) C25C 3/12 (2006.01)
Patent
CA 2158353
A carbon containing material for use in particular as an anode of electrolytic cells for the production of aluminium by the electrolysis of alumina in a cryolite-based electrolyte, consists substantially of a mixture of one or more particulate carbonaceous material(s) with a binder based on compounds of aluminium with carbon, oxygen and/or nitrogen, such as aluminium carbide or aluminium oxycarbide, or such compounds mixed with aluminium. This binder is obtained by mixing the particulate carbonaceous material(s) with particulate aluminium and with at least one compound of aluminium, lithium, cerium, calcium and sodium in a liquid carrier, and heat treating to form the binder. The liquid carrier may comprise a binding agent selected from methyl cellulose, polyvinyl alcohol and colloidal suspensions, in particular colloidal alumina.
Liu James Jenq
Sekhar Jainagesh A.
Gowling Lafleur Henderson Llp
Moltech Invent S.a.
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