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Title: For cermet inert anode containing oxide and metal phases useful for the electrolytic production of metals

Abstract

A cermet inert anode for the electrolytic production of metals such as aluminum is disclosed. The inert anode comprises a ceramic phase including an oxide of Ni, Fe and M, where M is at least one metal selected from Zn, Co, Al, Li, Cu, Ti, V, Cr, Zr, Nb, Ta, W, Mo, Hf and rare earths, preferably Zn and/or Co. Preferred ceramic compositions comprise Fe.sub.2 O.sub.3, NiO and ZnO or CoO. The cermet inert anode also comprises a metal phase such as Cu, Ag, Pd, Pt, Au, Rh, Ru, Ir and/or Os. A preferred metal phase comprises Cu and Ag. The cermet inert anodes may be used in electrolytic reduction cells for the production of commercial purity aluminum as well as other metals.

Inventors:
 [1];  [2];  [1]
  1. Murrysville, PA
  2. Monroeville, PA
Issue Date:
Research Org.:
Alcoa Technical Center/Aluminum Company of America (US)
OSTI Identifier:
874611
Patent Number(s):
6423204
Assignee:
Alcoa Inc. (Pittsburgh, PA)
Patent Classifications (CPCs):
C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25C - PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
DOE Contract Number:  
FC07-98ID13666
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cermet; inert; anode; containing; oxide; metal; phases; useful; electrolytic; production; metals; aluminum; disclosed; ceramic; phase; including; selected; zn; zr; nb; hf; rare; earths; andor; compositions; fesub2; osub3; nio; zno; coo; pd; ru; anodes; reduction; cells; commercial; purity; rare earth; inert anode; phase including; metal phase; ceramic phase; /205/204/

Citation Formats

Ray, Siba P, Liu, Xinghua, and Weirauch, Douglas A. For cermet inert anode containing oxide and metal phases useful for the electrolytic production of metals. United States: N. p., 2002. Web.
Ray, Siba P, Liu, Xinghua, & Weirauch, Douglas A. For cermet inert anode containing oxide and metal phases useful for the electrolytic production of metals. United States.
Ray, Siba P, Liu, Xinghua, and Weirauch, Douglas A. Tue . "For cermet inert anode containing oxide and metal phases useful for the electrolytic production of metals". United States. https://www.osti.gov/servlets/purl/874611.
@article{osti_874611,
title = {For cermet inert anode containing oxide and metal phases useful for the electrolytic production of metals},
author = {Ray, Siba P and Liu, Xinghua and Weirauch, Douglas A},
abstractNote = {A cermet inert anode for the electrolytic production of metals such as aluminum is disclosed. The inert anode comprises a ceramic phase including an oxide of Ni, Fe and M, where M is at least one metal selected from Zn, Co, Al, Li, Cu, Ti, V, Cr, Zr, Nb, Ta, W, Mo, Hf and rare earths, preferably Zn and/or Co. Preferred ceramic compositions comprise Fe.sub.2 O.sub.3, NiO and ZnO or CoO. The cermet inert anode also comprises a metal phase such as Cu, Ag, Pd, Pt, Au, Rh, Ru, Ir and/or Os. A preferred metal phase comprises Cu and Ag. The cermet inert anodes may be used in electrolytic reduction cells for the production of commercial purity aluminum as well as other metals.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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