Reduced temperature aluminum production in an electrolytic cell having an inert anode

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:872874

Dawless, Robert K ^[1]; Ray, Siba P ^[2]; Hosler, Robert B ^[3]; Kozarek, Robert L ^[4]; LaCamera, Alfred F ^[5]

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1. Monroeville, PA
2. Murrysville, PA
3. Sarver, PA
4. Apollo, PA
5. Trafford, PA

Aluminum is produced by electrolytic reduction of alumina in a cell having a cathode, an inert anode and a molten salt bath containing metal fluorides and alumina. The inert anode preferably contains copper, silver and oxides of iron and nickel. Reducing the molten salt bath temperature to about 900-950.degree. C. lowers corrosion on the inert anode constituents.

• Research Organization: Aluminum Company of America (Pittsburgh, PA)
• DOE Contract Number: FC07-89ID12848
• Assignee: Aluminum Company of America (Pittsburgh, PA)
• Patent Number(s): US 6030518
• OSTI ID: 872874
• Country of Publication: United States
• Language: English

Related Subjects

reduced
temperature
aluminum
production
electrolytic
cell
inert
anode
produced
reduction
alumina
cathode
molten
salt
bath
containing
metal
fluorides
preferably
contains
copper
silver
oxides
iron
nickel
reducing
900-950
degree
lowers
corrosion
constituents
preferably contains
preferably contain
salt bath
electrolytic cell
molten salt
electrolytic reduction
containing metal
metal fluoride
reduced temperature
inert anode
metal fluorides
bath containing
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