Mathematical Analysis of Experimental Data on MnO-SiO₂-CaO System Molten Slag Electric Conductivity  in Manganese Ferroalloy Production  Full text

М. М. Gasik¹, V.S. Kutsyn², M.I. Gasik³

¹Aalto University
P.O. Box 11000 FI-00076 AALTO
² National Metallurgical Academy of Ukraine
4 Gagarin Ave., Dnipropetrovsk, 49600, Ukraine 
³ JSC “Nikopol Ferroalloy Plant”
310 Electrometallurgov St., Nikopol, 53200, Ukraine

UDC 669.168

Metall. Min. Ind.,  2011, Vol. 3, No. 2, pp. 44-50

Abstract

The mathematical analysis results of experimental data on the electric conductivity of MnO-SiO2-CaO molten slag compositions homogeneous for predetermined temperature are presented. It is determined that experimental data can be estimated more adequately with application of multitask optimization and yield surface (metamodeling). Also change of slag properties can be predicted more reliable without hypothesis and assumptions about molten oxide slag structure.

Keywords: MnO-SiO₂-CaO SYSTEM MOLTEN SLAG, ELECTRIC CONDUCTIVITY, EXPERIMENTAL DATA, MATHEMATICAL ANALYSIS, MULTITASK OPTIMIZATION, YIELD SURFACE OF SLAG PROPERTIES PREDICTION