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Title: Inert anode containing oxides of nickel iron and cobalt useful for the electrolytic production of metals

Abstract

An inert anode for the electrolytic production of metals such as aluminum is disclosed. The inert anode includes a ceramic oxide material preferably made from NiO, Fe.sub.2 O.sub.3 and CoO. The inert anode composition may comprise the following mole fractions of NiO, Fe.sub.2 O.sub.3 and CoO: 0.15 to 0.99 NiO; 0.0001 to 0.85 Fe.sub.2 O.sub.3 ; and 0.0001 to 0.45 CoO. The inert anode may optionally include other oxides and/or at least one metal phase, such as Cu, Ag, Pd, Pt, Au, Rh, Ru, Ir and/or Os. The Ni--Fe--Co--O ceramic material exhibits very low solubility in Hall cell baths used to produce aluminum.

Inventors:
 [1];  [2];  [3]
+ Show Inventor Affiliations
  1. Murrysville, PA
  2. Monroeville, PA
  3. (Murrysville, PA)
Issue Date:
Research Org.:
Alcoa Technical Center/Aluminum Company of America (US)
OSTI Identifier:
874347
Patent Number(s):
6372119
Assignee:
Alcoa Inc. (Pittsburgh, PA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
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DOE Contract Number:  
FC07-98ID13666
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
inert; anode; containing; oxides; nickel; iron; cobalt; useful; electrolytic; production; metals; aluminum; disclosed; ceramic; oxide; material; nio; fesub2; osub3; coo; composition; following; mole; fractions; 015; 099; 00001; 085; 045; optionally; andor; metal; phase; pd; ru; ni-fe-co-o; exhibits; solubility; cell; baths; produce; ceramic material; inert anode; /205/204/501/502/

Citation Formats

Ray, Siba P, Liu, Xinghua, and Weirauch, Jr., Douglas A. Inert anode containing oxides of nickel iron and cobalt useful for the electrolytic production of metals. United States: N. p., 2002. Web.
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Ray, Siba P, Liu, Xinghua, & Weirauch, Jr., Douglas A. Inert anode containing oxides of nickel iron and cobalt useful for the electrolytic production of metals. United States.
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Ray, Siba P, Liu, Xinghua, and Weirauch, Jr., Douglas A. Tue . "Inert anode containing oxides of nickel iron and cobalt useful for the electrolytic production of metals". United States. https://www.osti.gov/servlets/purl/874347.
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@article{osti_874347,
title = {Inert anode containing oxides of nickel iron and cobalt useful for the electrolytic production of metals},
author = {Ray, Siba P and Liu, Xinghua and Weirauch, Jr., Douglas A.},
abstractNote = {An inert anode for the electrolytic production of metals such as aluminum is disclosed. The inert anode includes a ceramic oxide material preferably made from NiO, Fe.sub.2 O.sub.3 and CoO. The inert anode composition may comprise the following mole fractions of NiO, Fe.sub.2 O.sub.3 and CoO: 0.15 to 0.99 NiO; 0.0001 to 0.85 Fe.sub.2 O.sub.3 ; and 0.0001 to 0.45 CoO. The inert anode may optionally include other oxides and/or at least one metal phase, such as Cu, Ag, Pd, Pt, Au, Rh, Ru, Ir and/or Os. The Ni--Fe--Co--O ceramic material exhibits very low solubility in Hall cell baths used to produce aluminum.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}
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