Akademik Veri Yönetim Sistemi
Canadian Metallurgical Quarterly, 2025 (SCI-Expanded)
Carbonised apricot kernel shells are a promising alternative to metallurgical coke due to their high carbon content, low sulphur levels, and significant energy efficiency. In this study, the usability of carbonised apricot kernel shells as biochar for the pre-reduction of chromite ore was examined. Composite pellets were prepared by blending biochar with chromite concentrate at different stoichiometric ratios, followed by solid-state reduction at varying temperatures and durations. The effects of biochar content, reduction temperature, and reduction time on the degree of reduction were analysed. Reduction processes were carried out at temperatures of 900, 1000, 1100 and 1200°C for 60, 120, 240, 360 min. In order to examine the reduction behaviour at high temperatures, the pellets were subjected to reduction for 360 min at temperatures of 1300, 1400 and 1500°C. The highest reduction value of 52.63% achieved for pellets at 1500°C after 360 min. As a result of the ICP/MS analyses, the percentage of chromium and iron amounts were determined. In accordance with the calculated reduction degrees and the mapping analyses carried out, the highest chromium and iron percentage was obtained in the st2 pellets reduced at 1500°C for 360 min 59.32% and 11.02% Cr and Fe, respectively.