摘要:Soda roasting kinetics of non-activated and mechanically activated chromite was investigated. It was determined that the reaction was diffusion controlled between 700 – 900°C and chemical reaction controlled between 900 – 1200°C. The activation energy of first step for soda roasting of non-activated chromite was 170 kJ/mol and this value decreased to 141.8 kJ/mol for 30 min activated chromite and 79 kJ/mol for 120 min activated chromite. The activation energies for the second step was calculated as 64.7 kJ/mol for non-activated chromite, 43 kJ/mol for 30 min activated chromite and 25.1 kJ/mol for 120 min activated chromite. Mechanical activation reduced the activation energy for the soda roasting of chromite.
其他摘要:Mekanik aktive edilmemiş ve mekanik aktive edilmiş kromitin soda kavurması kinetiği incelenmiştir. Reaksiyonun 700-900°C aralığında difüzyon kontrollü, 900-1200°C aralığında ise kimyasal reaksiyon kontrollü olduğu tespit edilmiştir. Mekanik aktive edilmem