Author: John W. FriesingerPublisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 94
Book Description
A Fundamental Investigation of the High Temperature Oxidation of Gold Ores that Contain Sulfides and Carbonaceous Materials
Author: John W. FriesingerPublisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 94
Book Description
Geological Survey Professional Paper
Author: U.S. Geological Survey Professional Paper
Author: Electrolytic Oxidation of Carbonaceous Ores for Improving Gold Recovery
Author: Bernard J. ScheinerPublisher:
ISBN:
Category : Carbonate minerals
Languages : en
Pages : 20
Book Description
Gold Ore Processing
Author: Mike D. AdamsPublisher: Elsevier
ISBN: 0444636706
Category : Science
Languages : en
Pages : 1050
Book Description
Gold Ore Processing: Project Development and Operations, Second Edition, brings together all the technical aspects relevant to modern gold ore processing, offering a practical perspective that is vital to the successful and responsible development, operation, and closure of any gold ore processing operation. This completely updated edition features coverage of established, newly implemented, and emerging technologies; updated case studies; and additional topics, including automated mineralogy and geometallurgy, cyanide code compliance, recovery of gold from e-waste, handling of gaseous emissions, mercury and arsenic, emerging non-cyanide leaching systems, hydro re-mining, water management, solid–liquid separation, and treatment of challenging ores such as double refractory carbonaceous sulfides. Outlining best practices in gold processing from a variety of perspectives, Gold Ore Processing: Project Development and Operations is a must-have reference for anyone working in the gold industry, including metallurgists, geologists, chemists, mining engineers, and many others. - Includes several new chapters presenting established, newly implemented, and emerging technologies in gold ore processing - Covers all aspects of gold ore processing, from feasibility and development stages through environmentally responsible operations, to the rehabilitation stage - Offers a mineralogy-based approach to gold ore process flowsheet development that has application to multiple ore types
Investigation of Oxidation Systems for Improving Gold Recovery from Carbonaceous Materials
Author: Bernard J. ScheinerPublisher:
ISBN:
Category : Carbonate minerals
Languages : en
Pages : 16
Book Description
Geological Survey Professional Paper
Author: Geological Survey (U.S.)Publisher:
ISBN:
Category :
Languages : en
Pages : 410
Book Description
Advances in Gold Ore Processing
Author: Mike D. AdamsPublisher: Elsevier
ISBN: 0080459080
Category : Technology & Engineering
Languages : en
Pages : 1077
Book Description
The gold processing industry is experiencing change. As free-milling and oxide ores become depleted, more complex polymetallic and refractory ores are being processed, coupled with increasing pressure for stricter environmental compliance. Recent years have also seen a steady reduction in mineral processing and metallurgy graduates and a gradual loss of older operating experience. A contribution to documenting current and future best practice in gold ore processing seems timely.The focus of this volume is on advances in current gold plant operation, from conception to closure; chapters also cover innovations at the bench and pilot-scale level that would be expected to find commercial application at some stage. Sufficient coverage is also given to the chemistry and engineering aspects. The general principle behind the structure of the volume is that of flowsheeting based on unit operations and applied to a mineralogical classification of gold ore types. From concept to closure, this book covers all unit operations, mineralogies and processes that are relevant to dealing with today's complex orebodies.Practical experience is vital to the successful development, operation and closure of any operation. The 42 chapters have been contributed by a total of 66 authors and co-authors who are experts from countries spanning the globe, and representing exhaustive practical knowledge covering many disciplines relevant to gold processing.* Current best practice as elucidated by a select panel of experts in the field* Innovations at the bench and pilot-scale level that would be expected to find commercial application at some stage* Mineralogical-based approach to flowsheeting
A Mineralogical Investigation of Refractory Gold Ores and Their Beneficiation, with Special Reference to Arsenical Ores
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A mineralogical investigation of the main causes of refractoriness of some metallurgically complex gold ores in South Africa is reported. It is shown that this refractoriness is related to the presence of submicroscopic gold, carbonaceous material, pyrrhotite, and base-metal sulphides. Gold ores can be classified according to their content of these components. Electron-microprobe analysis shows that gold occurs in arsenopyrite and pyrite, the gold contents of which can be up to 2700 g/t. The gold and arsenic contents of these minerals are closely correlated. Furthermore, within zoned arsenopyrite grains, the concentration of gold closely follows that of arsenic. Mossbauer spectroscopy carried out on samples of concentrate from the Barberton area indicates that the submicroscopic gold within the sulphides is in a non-metallic form. The mineralogical examination of beneficiation products is important, since it sheds light on some fundamental aspects of the behaviour of the ore and gangue components during milling and flotation. Such basic information will lead ultimately to a better understanding of the problems in the beneficiation of these ores. Investigations have shown that the overmilling of the auriferous arsenopyrite and the disseminated nature of the sulphide mineralization are the main problems during beneficiation.
Author: