Attempts to replace nut coke with semi-coke for blast furnace ironmaking Qingbo Meng, Fanyu Meng, Li Zhan, Xiuli Xu, Jianglong Yu and Qi Wang Metall. Res. Technol., 118 3 (2021) 301 Published online: 21 April 2021 DOI: 10.1051/metal/2021026