Koni, Brian Ammonium sulphate leaching of Chambishi pressure leach residue at Chambishi Cobalt Plant Thesis Supervised by Dr. Chileshe - Kitwe Copperbelt University, School of Technology,Mining Department 2006 Subjects--Topical Terms: MININGAMMONIUM SULPHATE LEACHING--CHAMBESHI COBALT PLANT LC Class. No.: THESIS/STUDENT