The Principles and Practice of Leaching

Erscheinungsjahr 1995
ISBN: 978-0-444-82255-0
Verlag: Elsevier Science & Technology

Buch, Englisch

The Principles and Practice of Leaching focuses on advances in the leaching of metals from various ores and concentrates. The articles presented in this volume represent thirteen countries scattered through five continents. This is a reflection of the international effort being expended to advance the theory and practice of leaching. A range of topics related to leaching are included in the book e.g. copper and nickel leaching; zinc leaching; gold and silver leaching; biological and heap leaching. Within these topics there is evidence of much progress in understanding the nature of leaching processes and the applying of new ideas to commercial practice. The design of commercial leaching processes through advanced mathematical modelling is also emphasized.It is hoped that this volume will be an often-used reference for all those interested in the principles and practice of leaching, and that it will be a solid foundation for future excellent work in hydrometallurgy.

Fachgebiete

• Technische Wissenschaften Sonstige Technologien | Angewandte Technik Bergbau, Hüttenwesen

Inhaltsverzeichnis

Preface. SESSION 1. Development of the Hartley Platinum leaching process (S. Fugleberg et al.). Development of ammoniacal lixiviants for the in-situ leaching of chalcopyrite (S.L. Bell et al.). Passivation of chalcopyrite during oxidative leaching in sulfate media (R.P. Hackl et al.). Commercial operations of the Sherritt zinc pressure leach process (E. Ozberk et al.). Zinc pressure leaching at the Ruhr-Zink Refinery (E. Ozberk et al.). Zinc pressure leaching at Cominco (W.A. Jankola). Zinc pressure leaching at HBMS (B.D. Krysa). Improvements in pressure leaching at Kidd Creek (M. Boissoneault et al.). Pressure leach capacity expansion using oxygen-enriched air at RBMR (Pty) Ltd (Z. Hofirek, P.J. Nofal). Acid pressure leaching of nickel-containing chromite overburden in the presence of additives (G.K. Das et al.). SESSION 2. Modernisation of the leaching circuit at Pasminco Metals - EZ (M.G. Kershaw). Assessment of alternative iron sources in the pressure leaching of zinc concentrates using a reactor model (S.A. Baldwin, G.P. Demopoulos). Commercial benefits of ceramic lining systems used in atmospheric and pressure leach vessels (D.J. Malone et al.). SESSION 3. The leaching behaviour of nickeliferous pyrrhotite concentrate in hot nitric acid (D.J. Droppert, Y. Shang). Pressure leaching of reduced ilmenite: electrochemical aspects (S. Jayasekera et al.). Selective pressure leaching of zinc and manganese from natural and man-made spinels using nitric acid (G. Van Weert, M. Boering). Sulphation of Carajás manganese ore (J.M.M. Paixão et al.). Autoclave processing of low grade copper-nickel concentrates (A. Kosyakov et al.). SESSION 4. Process optimization studies in gold cyanidation (P.D. Kondos et al.). Unsteady-state model for gold cyanidation on a rotating disk (G. Lapidus). Thiosulphate leaching for gold hydrometallurgy (G. Abbruzzese et al.). Study of gold leaching in oxygenated solutions containing cyanide-copper-ammonia using a rotating quartz crystal microbalance (J. Zheng et al.). SESSION 5. Comparison of methods used to inhibit bacterial activity in sulfide ore bioleaching studies (L.A. Brickett et al.). The metallurgy of the Mantoverde Project (G. Zárate, R. Kelley). SESSION 6. Progress in the mathematical modelling of leaching reactors (F.K. Crundwell). Improved methods for the design of multistage leaching systems (D.G. Dixon). Kinetic aspects of Galvanic interactions between minerals during dissolution (P.R. Holmes, F.K. Crundwell). Model-based analysis of pressure oxidation autoclave behaviour during process upsets (D.H. Rubisov, V.G. Papangelakis).