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Title: Aluminum low temperature smelting cell metal collection

Abstract

A method of producing aluminum in an electrolytic cell containing alumina dissolved in an electrolyte. The method comprises the steps of providing a molten salt electrolyte in an electrolytic cell having an anodic liner for containing the electrolyte, the liner having an anodic bottom and walls including at least one end wall extending upwardly from the anodic bottom, the anodic liner being substantially inert with respect to the molten electrolyte. A plurality of non-consumable anodes is provided and disposed vertically in the electrolyte. A plurality of cathodes is disposed vertically in the electrolyte in alternating relationship with the anodes. The anodes are electrically connected to the anodic liner. An electric current is passed through the anodic liner to the anodes, through the electrolyte to the cathodes, and aluminum is deposited on said cathodes. Oxygen bubbles are generated at the anodes and the anodic liner, the bubbles stirring the electrolyte. Molten aluminum is collected from the cathodes into a tubular member positioned underneath the cathodes. The tubular member is in liquid communication with each cathode to collect the molten aluminum therefrom while excluding electrolyte. Molten aluminum is delivered through the tubular member to a molten aluminum reservoir located substantially opposite themore » anodes and cathodes. The molten aluminum is collected from the cathodes and delivered to the reservoir while avoiding contact of the molten aluminum with the anodic bottom.« less

Inventors:
 [1];  [1]
  1. (Seattle, WA)
Publication Date:
Research Org.:
Northwest Aluminum Technologies (Seattle, WA)
OSTI Identifier:
874580
Patent Number(s):
US 6419812
Application Number:
10/721723
Assignee:
Northwest Aluminum Technologies (Seattle, WA) IDO
DOE Contract Number:  
FC07-98ID13662
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
aluminum; temperature; smelting; cell; metal; collection; method; producing; electrolytic; containing; alumina; dissolved; electrolyte; steps; providing; molten; salt; anodic; liner; bottom; walls; including; wall; extending; upwardly; substantially; inert; plurality; non-consumable; anodes; provided; disposed; vertically; cathodes; alternating; relationship; electrically; connected; electric; current; passed; deposited; oxygen; bubbles; generated; stirring; collected; tubular; positioned; underneath; liquid; communication; cathode; collect; excluding; delivered; reservoir; located; opposite; avoiding; contact; molten salt; electrically connected; electric current; molten aluminum; cell contain; /205/

Citation Formats

Beck, Theodore R., and Brown, Craig W. Aluminum low temperature smelting cell metal collection. United States: N. p., 2002. Web.
Beck, Theodore R., & Brown, Craig W. Aluminum low temperature smelting cell metal collection. United States.
Beck, Theodore R., and Brown, Craig W. Tue . "Aluminum low temperature smelting cell metal collection". United States. https://www.osti.gov/servlets/purl/874580.
@article{osti_874580,
title = {Aluminum low temperature smelting cell metal collection},
author = {Beck, Theodore R. and Brown, Craig W.},
abstractNote = {A method of producing aluminum in an electrolytic cell containing alumina dissolved in an electrolyte. The method comprises the steps of providing a molten salt electrolyte in an electrolytic cell having an anodic liner for containing the electrolyte, the liner having an anodic bottom and walls including at least one end wall extending upwardly from the anodic bottom, the anodic liner being substantially inert with respect to the molten electrolyte. A plurality of non-consumable anodes is provided and disposed vertically in the electrolyte. A plurality of cathodes is disposed vertically in the electrolyte in alternating relationship with the anodes. The anodes are electrically connected to the anodic liner. An electric current is passed through the anodic liner to the anodes, through the electrolyte to the cathodes, and aluminum is deposited on said cathodes. Oxygen bubbles are generated at the anodes and the anodic liner, the bubbles stirring the electrolyte. Molten aluminum is collected from the cathodes into a tubular member positioned underneath the cathodes. The tubular member is in liquid communication with each cathode to collect the molten aluminum therefrom while excluding electrolyte. Molten aluminum is delivered through the tubular member to a molten aluminum reservoir located substantially opposite the anodes and cathodes. The molten aluminum is collected from the cathodes and delivered to the reservoir while avoiding contact of the molten aluminum with the anodic bottom.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {7}
}

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