Influence of the substrate on the rate of aluminium loss in molten cryolite

1988 ◽  
Vol 18 (1) ◽  
pp. 75-79 ◽  
Author(s):  
J. M. Tellenbach ◽  
D. Landolt
Keyword(s):  
Molten Cryolite

Electrical Conductivity of Molten Cryolite and Potassium, Sodium, and Lithium Chlorides

1952 ◽  
Vol 99 (12) ◽  
pp. 527 ◽  
Author(s):  
Junius D. Edwards ◽  
Cyril S. Taylor ◽  
Allen S. Russell ◽  
L. Frank Maranville
Keyword(s):  
Electrical Conductivity ◽  
Potassium Sodium ◽  
Molten Cryolite

An investigation into dissolution behavior of pre-oxidized Ni-6Al-10Cu-11Fe-15Cr nickel base alloy in molten cryolite

2015 ◽  
Vol 62 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Reza Tamasgavabari ◽  
Kurosh Jafarzadeh ◽  
Masumeh Madanipoor ◽  
Hassan Badri
Keyword(s):  
Corrosion Behaviour ◽  
Base Alloy ◽  
Dissolution Behavior ◽  
Nickel Base Alloy ◽  
Surface Layers ◽  
Content Type ◽  
Inert Anodes ◽  
Major Oxide ◽  
Nickel Base ◽  
Molten Cryolite

Purpose – The purpose of this paper was the investigation of corrosion behaviour of Ni-6Al-10Cu-11Fe-15Cr alloy, as a candidate material for inert anodes in aluminium electrolysis industries. Design/methodology/approach – The samples were prepared by casting, and then were oxidized at 1,000°C for 30, 70 and 100 hours, respectively. To determine corrosion resistant of the samples, they were exposed to molten cryolite at 930°C for 70 hours. Then the surface layers were studied. Findings – Results showed that by extension of corrosion time, thickness of oxide layers increases. In addition, it was found that Al2O3 and Cr2O3 are the major oxide compounds that appear on the surface of the sample. Originality/value – In this paper, the Ni-6Al-10Cu-11Fe-15Cr nickel base alloy has been selected to study its corrosion behaviour in molten cryolite as a candidate for inert anodes. It was found out that by addition Al and Cr into the alloy composition, due to formation of Al2O3 and Cr2O3 following oxidation, the substrate was protected from corrosion attacks.

Anionic Structure in Molten Cryolite–Alumina Systems

2018 ◽  
Vol 122 (38) ◽  
pp. 21807-21816 ◽  
Author(s):  
Kelly Machado ◽  
Didier Zanghi ◽  
Mathieu Salanne ◽  
Vincent Stabrowski ◽  
Catherine Bessada
Keyword(s):  
Molten Cryolite

Determination of Aluminum Oxide Concentration in Molten Cryolite-Alumina

Metallurgist ◽  
2013 ◽  
Vol 57 (3-4) ◽  
pp. 346-351 ◽  
Author(s):  
V. A. Ershov ◽  
I. A. Sysoev ◽  
V. V. Kondrat’ev
Keyword(s):  
Aluminum Oxide ◽  
Oxide Concentration ◽  
Molten Cryolite

Solubility of Chromium(III) Oxide in the Molten Cryolite System

2013 ◽  
Vol 44 (2) ◽  
pp. 328-331 ◽  
Author(s):  
Dáša Šuleková ◽  
Vladimir Danielik ◽  
Pavel Fellner ◽  
Jomar Thonstad
Keyword(s):  
Molten Cryolite

Dissolution of alumina in molten cryolite

1972 ◽  
Vol 3 (2) ◽  
pp. 407-412 ◽  
Author(s):  
J. Thonstad ◽  
F. Nordmo ◽  
J. B. Paulsen
Keyword(s):  
Molten Cryolite

Structures of oxyfluoroaluminates in molten cryolite-alumina mixtures investigated by DFT-based calculations

1996 ◽  
Vol 368 ◽  
pp. 67-80 ◽  
Author(s):  
Gérard S. Picard ◽  
Frédéric C. Bouyer ◽  
Michel Leroy ◽  
Yves Bertaud ◽  
S. Bouvet
Keyword(s):  
Molten Cryolite
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