Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Utilizing fused bath
Patent
1997-09-19
1999-08-17
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Utilizing fused bath
205395, 204247, C25C 322
Patent
active
059389141
ABSTRACT:
An electrolytic cell for reduction of a metal oxide to a metal and oxygen has an inert anode and an upwardly angled roof covering the inert mode. The angled roof diverts oxygen bubbles into an upcomer channel, thereby agitating a molten salt bath in the upcomer channel and improving dissolution of a metal oxide in the molten salt bath. The molten salt bath has a lower velocity adjacent the inert anode in order to minimize corrosion by substances in the bath. A particularly preferred cell produces aluminum by electrolysis of alumina in a molten salt bath containing aluminum fluoride and sodium fluoride.
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Robert A. Lewis, Trends in Aluminum Cell Design, Chemical Engineering Progress, vol. 56, No. 5, May 1960.
Dawless Robert K.
Hosler Robert B.
LaCamera Alfred F.
Ray Siba P.
Troup R. Lee
Aluminum Company of America
Gorgos Kathryn
Klepac Glenn E.
Smith-Hicks Erica
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