Located on the borders of Guinea, Liberia and Côte d’Ivoire, Mount Nimba rises above the surrounding savannah. Its slopes are covered by dense forest at the foot of grassy mountain pastures. They ...

School of Metallurgy and Environment, Central South University, No. 932, Lushan South Road, Yuelu District, Changsha 410083, China Laboratory of Metallurgical Separation Science and Engineering, ...