Dimensionally stable drained aluminum electrowinning cathode met

Details Dimensionally stable drained aluminum electrowinning cathode met Dimensionally stable drained aluminum electrowinning cathode met

1983-06-17

1985-10-01

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

204243R, 204283, 204284, 204290R, 204291, 204293, 204294, C25C 306, C25C 308, C25B 1103, C25B 1104

Patent

active

045444579

ABSTRACT:
A method and apparatus for making a drained aluminum electrowinning cathode dimensionally stable. A thin, 1/2 to 10 millimeter coating of substantially stagnant molten aluminum is maintained upon the cathode surface by an openly porous sheath or membrane closely conforming to contours of the electrowinning cathode. The sheath or membrane is made from a material substantially resistant to corrosives present in the aluminum electrowinning; it may be only slightly aluminum wettable, but should be relatively electrically nonconductive.

REFERENCES:
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patent: 3492208 (1970-01-01), Seager
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patent: 4093524 (1978-06-01), Payne
patent: 4177128 (1979-12-01), Rahn
patent: 4219391 (1980-08-01), Foster
patent: 4231853 (1980-11-01), Rahn
patent: 4410403 (1983-10-01), Jacobs et al.
patent: 4443313 (1984-04-01), Gesing et al.

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