Cathode element for use in an electrolytic cell intended for...

Details Cathode element for use in an electrolytic cell intended for... Cathode element for use in an electrolytic cell intended for...

2005-04-01

2009-11-17

Bell, Bruce F (Department: 1795)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S243100, C204S247400, C204S247500, C204S279000, C204S280000

Reexamination Certificate

active

07618519

ABSTRACT:
This invention relates to a cathode element for use in a pot of an electrolytic cell intended for production of aluminum. The cathode element comprises a cathode block and a steel connection bar. The connection bar includes at least one metal insert, whose electrical conductivity is greater than the electrical conductivity of the said steel. The presence of an insert according to the invention can simultaneously result in a very large drop in the global cathode voltage and a very strong reduction in the current density at the head of the block.

REFERENCES:
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patent: WO 2004/031452 (2004-04-01), None
Russian Office Action for Application No. 2006138619/02, dated Mar. 16, 2009.

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