[go: up one dir, main page]

Vasshaug et al., 2009 - Google Patents

Formation and dissolution of aluminium carbide in cathode blocks

Vasshaug et al., 2009

View PDF
Document ID
5231783931393036532
Author
Vasshaug K
Foosnæs T
Haarberg G
Ratvik A
Skybakmoen E
Publication year
Publication venue
Light Metals

External Links

Snippet

Today, wear of carbon cathode blocks is one of the main factors limiting the lifetime of aluminium reduction cells. Formation and dissolution of aluminium carbide plays an important role in the wear process, but the mechanisms are poorly understood. Electrolysis …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/085—Cell construction, e.g. bottoms, walls, cathodes characterised by its non electrically conducting heat insulating parts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/06—Operating or servicing
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/10—Electrodes, e.g. composition, counter electrode

Similar Documents

Publication Publication Date Title
CA2137816C (en) The application of refractory borides to protect carbon-containing components of aluminium production cells
US6607657B2 (en) Carbon-containing components of aluminium production cells
NO831651L (en) Aluminum electrolysis cells.
Liao et al. Carbon cathode corrosion by aluminium carbide formation in cryolitic melts
Hryn et al. Initial 1000A aluminum electrolysis testing in potassium cryolite-based electrolyte
Nightingale et al. Corrosion of nickel ferrite refractory by Na3AlF6–AlF3–CaF2–Al2O3 bath
Welch et al. Future materials requirements for the high-energy-intensity production of aluminum
Padamata et al. Anodic process on Cu− Al alloy in KF− AlF3− Al2O3 melts and suspensions
Patel et al. Influence of internal cathode structure on behavior during electrolysis part ii: Porosity and wear mechanisms in graphitized cathode material
Liao et al. Physical and chemical wear of carbon cathode materials
Vasshaug et al. Formation and dissolution of aluminium carbide in cathode blocks
Øye et al. Cathode performance: The influence of design, operations, and operating conditions
Brown The Wettability of TiB2-Based Cathodoes in Low-Temperature Slurry-Electrolyte Reduction Cells
Tschöpe et al. Investigation of the cathode wear mechanism in a laboratory test cell
Vasyunina et al. The solubility and dissolution rate of alumina in acidic cryolite aluminous melts
US5534119A (en) Method of reducing erosion of carbon-containing components of aluminum production cells
Tschöpe et al. Critical reflections on laboratory wear tests for ranking commercial cathode materials in aluminium cells
Solli et al. Design and performance of a laboratory cell for determination of current efficiency in the electrowinning of aluminium
Zoukel et al. Study of aluminum carbide formation in Hall-Heroult electrolytic cells
Cui et al. The performance of aluminium electrolysis in a low temperature electrolyte system
Guan et al. Preparing aluminum-scandium alloys using direct hall reduction process
LAI et al. Preliminary testing of NiFe2O4-NiO-Ni cermet as inert anode in Na3AlF6-AlF3 melts
Weirauch Jr Technologically significant capillary phenomena in high-temperature materials processing: Examples drawn from the aluminum industry
Sato et al. Erosion measurements of high density cathode block samples through laboratory electrolysis with rotation
Cui et al. The Performance of Aluminium Electrolysis in Cryolite Based Electrolytes Containing LiF, KF and MgF 2