Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals

Ray, Siba P; Liu, Xinghua

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

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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 ZnO. The inert anode composition may comprise the following mole fractions of NiO, Fe.sub.2 O.sub.3 and ZnO: 0.2 to 0.99 NiO; 0.0001 to 0.8 Fe.sub.2 O.sub.3 ; and 0.0001 to 0.3 ZnO. 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:

Ray, Siba P ^[1]; Weirauch, Jr., Douglas A. ^[2]; Liu, Xinghua ^[3]

Murrysville, PA
(Murrysville, PA)
Monroeville, PA

Issue Date:: 2002-01-01

Research Org.:: Alcoa Technical Center/Aluminum Company of America (US)

OSTI Identifier:: 874610

Patent Number(s):: 6423195

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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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F2998/00 - Supplementary information concerning processes or compositions relating to powder metallurgy

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C1/0466 - {Alloys based on noble metals}
C22C29/12 - based on oxides

C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25C - PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS
C25C3/06 - of aluminium
C25C3/12 - Anodes
C25C7/02 - Electrodes
C25C7/025 - {used in cells for the electrolysis of melts}

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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; zinc; useful; electrolytic; production; metals; aluminum; disclosed; ceramic; oxide; material; nio; fesub2; osub3; zno; composition; following; mole; fractions; 02; 099; 00001; 08; 03; optionally; andor; metal; phase; pd; ru; ni-fe-co-o; exhibits; solubility; cell; baths; produce; ceramic material; inert anode; /204/205/

Citation Formats


                    Ray, Siba P, Weirauch, Jr., Douglas A., and Liu, Xinghua. Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals.  United States: N. p., 2002. 
        Web.

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                    Ray, Siba P, Weirauch, Jr., Douglas A., & Liu, Xinghua. Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals.  United States.

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                    Ray, Siba P, Weirauch, Jr., Douglas A., and Liu, Xinghua. Tue .  
        "Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals".  United States.  https://www.osti.gov/servlets/purl/874610.

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@article{osti_874610,

  title        = {Inert anode containing oxides of nickel, iron and zinc useful for the electrolytic production of metals},

  author       = {Ray, Siba P and Weirauch, Jr., Douglas A. and Liu, Xinghua},

  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 ZnO. The inert anode composition may comprise the following mole fractions of NiO, Fe.sub.2 O.sub.3 and ZnO: 0.2 to 0.99 NiO; 0.0001 to 0.8 Fe.sub.2 O.sub.3 ; and 0.0001 to 0.3 ZnO. 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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