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Title: Low temperature aluminum reduction cell using hollow cathode

Patent ·
OSTI ID:874657
 [1];  [1]
  1. Seattle, WA
+ Show Author Affiliations

A method of producing aluminum in an electrolytic cell containing alumina dissolved in an electrolyte. A plurality of non-consumable anodes are disposed substantially vertically in the electrolyte along with a plurality of monolithic hollow cathodes. Each cathode has a top and bottom and the cathodes are disposed vertically in the electrolyte and the anodes and the cathodes are arranged in alternating relationship. Each of the cathodes is comprised of a first side facing a first opposing anode and a second side facing a second opposing anode. The first and second sides are joined by ends to form a reservoir in the hollow cathode for collecting aluminum therein deposited at the cathode.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
DOE Contract Number:
FC36-98ID13662
Assignee:
Northwest Aluminum Technologies (Seattle, WA)
Patent Number(s):
US 6436272
Application Number:
10/678238
OSTI ID:
874657
Country of Publication:
United States
Language:
English

References (3)

Principles of Aluminum Electrolysis book January 2016
The wettability of TiB2-based cathodes in low-temperature slurry-electrolyte reduction cells journal May 1998
The Transfer of Nickel, Iron, and Copper From Hall Cell Melts to Molten Aluminum journal January 1996

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temperature
aluminum
reduction
cell
hollow
cathode
method
producing
electrolytic
containing
alumina
dissolved
electrolyte
plurality
non-consumable
anodes
disposed
substantially
vertically
monolithic
cathodes
top
bottom
arranged
alternating
relationship
comprised
facing
opposing
anode
joined
form
reservoir
collecting
deposited
hollow cathode
reduction cell
substantially vertical
non-consumable anode
aluminum reduction
cell contain
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