Thermodynamic Interaction Modeling of Periclase-Chromite Compositions with Carbon and Mixed Gases  Full text 

O.I. Polyakov, Ye.I. Tsybulya, M.I. Gasik

National Metallurgical Academy of Ukraine

UDC 544.341.2:669.15-198

Metall. Min. Ind.,  2011, Vol. 3, No. 5, pp. 211-215

Abstract

A thermodynamic model of interaction of periclase-chromite compositions with solid carbon and mixed reducing gases under different ratios P_CO : P_CO2 at temperatures between 700 and 1400°C during anthracite calcinations in tubular rotary kilns was developed and implemented. The presence of metallic phase containing iron and chromium in the cobbing samples of periclase-chromite refractory, withdrawn from the tubular rotary kiln during its relining, was experimentally (with the use of EDX) confirmed.

Keywords: PERICLASE-CHROMITE CALCINATED COMPOSITIONS, TUBULAR ROTARY KILN, THERMODYNAMIC MODELING, REDUCTION REACTION, SOLID CARBON, CARBON OXIDE, METALLIC PHASE