Hydrogen plasma reduction of Zn and Pb bearing residues in an inductively coupled plasma process KU Leuven
The application of plasma fuming technology opens up new horizons for the treatment of zinc-bearing residues. The present work uses a lab-scale Inductively Coupled Plasma (ICP) setup to investigate the hydrogen plasma reduction of ZnO and PbO from the CaO-FeO-SiO2 based slags. Slag particles were melted when passing through the ICP torch, and the ZnO and PbO were reduced into Zn and Pb metal vapor by H2 molecules and H radicals in the thermal ...