Control of ledge formation in aluminum cell operation

Details Control of ledge formation in aluminum cell operation Control of ledge formation in aluminum cell operation

1982-07-22

1984-08-21

Lusignan, Michael R.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Control element is fluid pressure sensitive

427122, 4271261, 4271262, 427228, 4274191, 4274197, 427379, 427380, 204290R, 204294, B32B 904, B44D 144, C25C 308

Patent

active

044669950

ABSTRACT:
The application of a Refractory Hard Material coating composition to selected areas of the surface of an aluminum cell cathode permits tailoring or control of ledge formation during cell operation. Cell voltage improvements are also noted, resulting in more efficient cell performance.

REFERENCES:
patent: 3400061 (1968-09-01), Lewis et al.
patent: 3429759 (1969-02-01), Kellar et al.
patent: 3492208 (1970-01-01), Seager
patent: 3657592 (1972-04-01), Kellar
patent: 3661736 (1972-05-01), Holliday
patent: 4308114 (1981-12-01), Das et al.
Houston et al., Chemica 80: Process Ind. 80's, Austrailian Chem. Eng. Conf., 8th Melbourne, Aust., 1980.
Aeschbach et al., Light Metal Age, Oct. 1981, pp. 17-18.

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