Metalurgija, Vol. 58 No. 3-4, 2019.
Prethodno priopćenje
Thermodynamic diagram analysis (TDA) of MnO–CaO-Аl2O3-SiO2 and phase composition of slag in refined ferromanganese production
D. Yessengaliyev
orcid.org/0000-0003-0792-0822
; Karaganda State Technical University, Karaganda, Kazakhstan
S. Baisanov
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
A. Issagulov
; Karaganda State Technical University, Karaganda, Kazakhstan
A. Baisanov
; Chemical-Metallurgical Institute, Karaganda, Kazakhstan
O. Zayakin
; Institute of Metallurgy, Yekaterinburg, Russia
A. Abdirashit
; Aktobe regional state of university, Aktobe, Kazakhstan
Sažetak
The research presents the calculations of the analytical expressions of the oxide system MnO-CaO-Al2O3-SiO2 and the phase compositions of the slags from the production of refined ferromanganese. It is determined that the system under consideration is divided into 19 elementary quasi-systems consisting of incongruently melting and congruently melting compounds. The sum of the relative volumes of the elementary tetrahedron of the MnO-CaOAl2O3-SiO2 system equals one (1,000000), which confirms the accuracy of the performed calculations. Quasi-volumes in the system MnO-CaO-Al2O3-SiO2, simulating the composition of the resulting slag in the process of metallothermic recovery of manganese concentrates are found.
Ključne riječi
thermodynamic-diagram analysis; refined ferromanganese; phase composition; oxide system; metallothermy
Hrčak ID:
218404
URI
Datum izdavanja:
1.7.2019.
Posjeta: 1.169 *