HYDROGEN REDUCTION OF MOO3-FE MIXES STUDIED BY STEPWISE DIFFERENTIAL ISOTHERMAL ANALYSIS

The method of a stepwise differential isothermal analysis (SDIA) has b een designed for studies of reduction processes in metallurgical syste ms. The basis of the method is in multi-parameter control of reaction rate and its use for monitoring temperature, heating rate, and gas-pha se composition. In this study hydrogen reduction of MoO3 and its mix w ith 30% Fe have been carried out using the SDIA technique. During the measurements, TG, DTG, DTA, EGA, and temperature control are carried o ut. Kinetics parameters were determined and possible reduction mechani sm was suggested. The SDIA technique is well suited for these studies.