Cermet anode electrowining metals from fused salts
AssigneeDiamond Shamrock Corporation
InventorsJean-Jacques R. Duruz, Jean-Pierre Derivaz
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Abstract
An anode for use in electrowinning molten metal from a fused salt bath, e.g., aluminium from cryolite-alumina, consists of a cermet material formed from a ceramic oxide of, e.g., a ferrite or chromite, and a metal, e.g., a noble metal or alloy th
Claims4
An anode for electrowinning molten metal from a fused salt in an electrolytic cell comprising at least one anode immersed in a fused salt bath above a cathode disposed at the base of the cell, characterized in that the anode consists essentially of a cermet material composed of a ceramic phase formed of at least one oxide selected from the group consisting of nickel, ferrite and hematite;
- said ceramic phase being uniformly mixed with a metallic phase formed of at least one metal selected from the group consisting of palladium, platinum, iridium, rhodium, gold and alloys of these metals among themselves or with iron, cobalt, nickel or copper.
An electrolytic cell for electrowinning aluminum from a fused cryolite-aluminum bath, comprising at least one anode immersed in said bath above a cathode disposed at the base of the cell, characterized in that said anode consists essentially of a cermet material composed of a ceramic phase formed of at least one oxide selected from the group consisting of nickel ferrite or hematite;
- said ceramic phase being uniformly mixed with a metallic phase formed of at least one metal selected from the group consisting of palladium, platinum, iridium, rhodium, gold and alloys of these metals among themselves or with iron, cobalt, nickel or copper.
Dependencies are inferred from the claim text.