The viscous behavior and potassium removal capacity of CaO–SiO2–8wt%MgO–17wt%Al2O3–2.5wt%BaO–K2O slagWenguo Liu, Xiangdong Xing and Haibin ZuoMetall. Res. Technol., 117 2 (2020) 201DOI: https://doi.org/10.1051/metal/2020013