ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
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Calculation of the phase diagrams of multicomponent systems containing cryolite

P. Fellner, M. Chrenková-Paučírová, and K. Matiašovský

Institute of Inorganic Chemistry, Slovak Academy of Sciences, 809 34 Bratislava

 

Abstract: Liquidus diagrams of the cryolite-based ternary and quaternary systems are calcd. using the estn. of the excess Gibbs energy. The systems LiF-NaF-AlF3, Na3AlF6-Al2O3-NaCl, Na3AlF6-Al2O3-NaCl-CaF2, and Na3AlF6-Al2O3-AlF3-NaCl were investigated. Main attention was paid to the region of primary crystn. of cryolite which is important in electrowinning of Al. In spite of a strong interaction among the components of these melts there is a good agreement between the calcd. and exptl. temps. of primary crystn.

Full paper in Portable Document Format: 306a805.pdf

 

Chemical Papers 30 (6) 805–812 (1976)

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