Aluminium production cell design
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United States of America Patent
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-
Dec 2, 2003
Grant Date -
Jun 5, 2003
app pub date -
Jun 4, 2002
filing date -
Jul 8, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cell of advanced design for the production of aluminium by the electrolysis of an aluminium compound dissolved in a molten electrolyte, has a cathode (30) of drained configuration, and at least one non-carbon anode (10) facing the cathode both covered by the electrolyte (54). The upper part of the cell contains a removable thermic insulating cover (60) placed just above the level of the electrolyte (54). Preferably, the cathode (30) comprises a cathode mass (32) supported by a cathode carrier (31) made of electrically conductive material which serves also for the uniform distribution of electric current to the cathode mass (32) from current feeders (42) which connect the cathode carrier (31) to the negative busbars.
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