Cathode for a fused salt reduction cell
In a fused salt electrolytic cell used in the production of aluminum, a cathode having work faces which are wet by aluminum, are resistant to attack by the molten electrolyte and are electrically conductive, is made up of a bed of loose shaped pieces or bodies located in the molten electrolyte. The pieces or bodies are made of a plurality of composite material elements bonded together which sink in molten aluminum, the composite material elements comprise a fine granular or chip-shaped substrate material selected from the group consisting of carbon, graphite, anthracite, aluminum nitride, silicon carbide and mixtures thereof having a thin layer coating of a material selected from the group consisting of titanium diboride, titanium carbide, titanium nitride, zirconium diboride, zirconium carbide, zirconium nitride and mixtures thereof completely and densely covering the surface of the substrate wherein the spaces between the coated substrate composite materials when bonded together to form the bodies are at least partly filled with the coating substance.
- Assignee:
- Swiss Aluminium Ltd. (Switzerland)
- Patent Number(s):
- US 4511449
- OSTI ID:
- 5335843
- Resource Relation:
- Patent Priority Date: Priority date 9 Nov 1983, Switzerland; Other Information: PAT-APPL-549921
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTROLYTIC CELLS
CATHODES
FABRICATION
ALUMINIUM
ANTHRACITE
CARBON
COMPOSITE MATERIALS
ELECTRIC CONDUCTIVITY
ELECTROLYSIS
GRAPHITE
PRODUCTION
SURFACE COATING
TITANIUM CARBIDES
TITANIUM NITRIDES
ZIRCONIUM BORIDES
ZIRCONIUM CARBIDES
ZIRCONIUM NITRIDES
BLACK COAL
BORIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
COAL
DEPOSITION
ELECTRICAL PROPERTIES
ELECTRODES
ELEMENTAL MINERALS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
LYSIS
MATERIALS
METALS
MINERALS
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
PHYSICAL PROPERTIES
PNICTIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries