C - Chemistry – Metallurgy – 25 – C
Patent
C - Chemistry, Metallurgy
25
C
C25C 3/10 (2006.01) C25C 3/12 (2006.01)
Patent
CA 2119100
A B S T R A C T The present invention concerns a device for protecting anode hanger nipples when manufacturing aluminium in a Hall-Heroult electrolysis process, made of a composite material consisting of carbon residues, hardening material, water and a catalyst. The device is characterised by two or more prefabricated, dimensionally stable parts which are designed to be joined in an arrangement in situ.
Fetherstonhaugh & Co.
Norsk Hydro A.s.
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