ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

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Surface-adsorption of SiO2 in melts of the system CaO-FeO-Fe2O3-SiO2

V. Daněk, T. Ličko, and Z. Pánek

Institute of Inorganic Chemistry, Centre for Chemical Research, Slovak Academy of Sciences, CS-842 36 Bratislava


Abstract: Surface tension of the CaO-FeO-Fe203-Si02 melts decreases with the increasing content of Si02 . The change of Fe203 concentration in the melts with the mole ratio x(CaO)/x(Si02 )=1 has no influence on the surface tension value. The surface adsorption of SiO2 z in the investigated melts increases with the increasing activity of Si0 2 . The positive influence of cations on surface adsorption of Si02 increases in the order Fe3+, Fe2+, Ca2+ , which is due to the electropositivity of cation and its coordination in the melt.

Full paper in Portable Document Format: 394a459.pdf


Chemical Papers 39 (4) 459–465 (1985)

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