Specific Molecular Features of Potassium-Containing Cryolite Melts

Galina Tsirlina, Evgeny Antipov, Dmitrii Glukhov, Alexander Gusev, Veronika Laurinavichute, Renat Nazmutdinov, Dmitry Simakov, Sergey Vassiliev, Tamara Zinkicheva

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

3 Citations (Scopus)

Abstract

Experimental in situ Raman spectra are presented for potassium, sodium and mixed fluoroaluminate melts. More acidic melts with cryolite ratio (CR) below 2 are accented. The cation-dependent ratio of integral band intensities is assigned to specific interactions of potassium cations with low coordinated fluoroaluminates. For alumina containing melts, the effect of potassium on the stoichiometry of predominating oxofluoroaluminate anion is observed indirectly. Density functional theory is employed to investigate the behavior of different fluoroaluminates (including dimers) and their associates formed by alkali metal cations.

Original languageEnglish
Title of host publicationLight Metals 2012
Publisherwiley
Pages787-791
Number of pages5
ISBN (Electronic)9781118359259
ISBN (Print)9781118291399
DOIs
Publication statusPublished - 24 May 2012
Externally publishedYes

Keywords

  • Modelling of ionic species
  • Raman spectroscopy
  • Sodium and Potassium cryolite

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