hydrometallurgical zinc recovery process in mine waters and metallurgical waste solids

摘要

hydrometallurgical method of recovering zinc mine waters and metallurgical waste solids # Procedure zinc recovery from metallurgical residues comprising integrated acidic mine water and a solid metallurgical residue treatment using at least the following steps.: a) purifying the solid metallurgical residue solubles, b) leaching the solid metallurgical residue with a bleaching agent comprising at least one mineral acid and acid mine water, c) biooxidize a mixture comprising leaching liquor and an additional amount of acid mine water, d) precipitating Fe and Al selectively, e) cement more noble than zinc element; f) precipitating zinc oxide. Additionally, method for obtaining a derivative of zinc oxide comprising: g) to obtain zinc oxide by the method of the invention, yh) transforming ZnO basic zinc carbonate or zinc metal.