HYDROMETALLURGICAL PROCESS FOR EXTRACTION OF
HYDROMETALLURGICAL PROCESS FOR EXTRACTION OF,of the hydrometallurgical processing of waste of electronic and electrical equipment (WEEE) using sulfuric acid and thiourea leaching are presented. Based on the,iron, zinc, nickel, lead and precious metals). In the past two decades much attention hasProcess Intensification of Zinc Oxide Leaching Process,,Zinc oxide ores are the main source of zinc after zinc sulphide ores. With escalating depletion of zinc sulphide ores, zinc,Process Intensification of Zinc Oxide Leaching Process Using Sulphuric Acid D Napo, Freeman Ntuli, Member, IAENG,,Zinc oxide ore and sulphuric acid were used forProcess Development - Alaska DGGS,Extraction of zinc, the principal valuable component of the complex sulfide ores, with the simultaneous separation of lead sulfate during direct ore processing and possible accumulation of precious metals dispersed in sulfide matrix, will be probably advantageous if technical problems were resolved.