Iwasaki, IwaoTamagawa, T.Tabaian, S. HFu, N. XKobayashi, M2015-10-072017-04-142015-10-072017-04-142000https://hdl.handle.net/11299/187124A gaseous chlorination process for hydrometallurgical treatment of a chalcopyrite concentrate was investigated. The overall process is visualized to consist of low temperature chlorination-selective oxidation, followed · by aqueous chloride leaching and SX-EW for producing electrolytic copper, elemental sulfur and ferric oxide. In this article, the chlorination phase of the process is described. Initially, the chlorination behavior of chalcopyrite-concentrate micro-pellets was investigated using a small batch-type fluidized bed reactor. The optimum conditions thereby established were used in continuous chlorination tests. The chlorinated products thus prepared were used in the selective oxidation phase of the investigation.enHydrometallurgyChalcopyriteLeachingGeochemical analysisNatural Resources Research InstituteUniversity of Minnesota DuluthTechnical Report