Aluminum reduction cell electrode

Patent · 20 September 1983

OSTI ID:864705

Payne, John R ^[1]

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1. Pleasanton, CA

The invention is directed to an anode-cathode structure for an electrolytic cell for the reduction of alumina wherein the structure is comprised of a carbon anode assembly which straddles a wedge-shaped refractory hard metal cathode assembly having steeply sloped cathodic surfaces, each cathodic surface being paired in essentially parallel planar relationship with an anode surface. The anode-cathode structure not only takes into account the structural weakness of refractory hard metal materials but also permits the changing of the RHM assembly during operation of the cell. Further, the anode-cathode structure enhances the removal of anode gas from the interpolar gap between the anode and cathode surfaces.

• Research Organization: Kaiser Aluminum & Chemical Corporation (Oakland, CA)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC03-76CS40215
• Assignee: Kaiser Aluminum & Chemical Corporation (Oakland, CA)
• Patent Number(s): US 4405433
• OSTI ID: 864705
• Country of Publication: United States
• Language: English

Related Subjects

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account
alumina
aluminum
aluminum reduction
anode
anode assembly
anode surface
anode-cathode
assembly
carbon
carbon anode
cathode
cathode assembly
cathode structure
cathode surface
cathodic
cell
cell electrode
changing
comprised
directed
electrode
electrolytic
electrolytic cell
enhances
essentially
essentially parallel
gap
gas
hard
hard metal
interpolar
materials
metal
metal cathode
metal material
metal materials
operation
paired
parallel
permits
planar
reduction
reduction cell
refractory
refractory hard
relationship
removal
rhm
shaped refractory
sloped
steeply
straddles
structural
structural weakness
structure
surface
surfaces
takes
weakness
wedge-shaped