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An Electrochemical And Kinetic Investigation Of The Behaviour Of Gold In Chloride Solutions
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Book Synopsis An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions by : M. J. Nichol
Download or read book An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions written by M. J. Nichol and published by . This book was released on 1981 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions by : M. J. Nichol
Download or read book An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions written by M. J. Nichol and published by . This book was released on 1981 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions. II. The Anodic Dissolution of Gold by :
Download or read book An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions. II. The Anodic Dissolution of Gold written by and published by . This book was released on 1976 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: An electrochemical investigation of the anodic dissolution of gold in aqueous chloride solutions has confirmed the formation of gold(I) in an intermediate step. The factors influencing the extent to which gold(I) accumulates in the solution have been established, and a kinetic model that accounts for the various observations has been developed. Cyclic voltammetry of gold in chloride solutions has revealed that the formation of oxide is responsible for the passivation that occurs at potentials at which the rate of transport of chloride to the surface becomes limiting.
Book Synopsis An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions by : E. Schalch
Download or read book An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions written by E. Schalch and published by . This book was released on 1981 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions. III. The Gold (III)-gold(I) Reaction on Platinum and the Disproportionation of Gold (I). by :
Download or read book An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions. III. The Gold (III)-gold(I) Reaction on Platinum and the Disproportionation of Gold (I). written by and published by . This book was released on 1976 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various electrochemical techniques were used in a study of the kinetics of the gold(III)-gold(I) couple on platinum in chloride solution, and of the initial stages of the deposition of gold on platinum. Differences in the behaviour of anodically treated platinum electrodes and gold electrodes were observed, and mechanisms are proposed for the reaction at both surfaces. The rate of homogeneous disproportionation of gold(I) in chloride solutions was found to be very slow, but it is catalysed at the surface of gold metal. The loss of gold as volatile species from a typical electrolyte at 50 degrees C has been shown to be negligible.
Book Synopsis An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions. 1. The Cathodic Deposition of Gold by :
Download or read book An Electrochemical and Kinetic Investigation of the Behaviour of Gold in Chloride Solutions. 1. The Cathodic Deposition of Gold written by and published by . This book was released on 1976 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cathodic deposition of gold from acidic chloride solutions was investigated with the aim of improving the electrolytic-refining process in use at the Rand Refinery. The depositions were carried out using as cathodes a vertical rod or a rotating disc. An investigation was made of the influence on the quality of the deposits of current density, stirring intensity, temperature, concentration of gold (I), and composition of the electrolyte. The maximum applicable currents were found to correspond to the mass-transfer-controlled deposition of gold (III). The concentration of gold (I) had a marked influence on the quality of the deposit. A series of runs using cells of the electrolytic-refining plant showed that stratification of the electrolyte occurs if no stirring is applied. Suggestions are made, resulting from both the laboratory and pilot experiments, that should result in an improvement of the electrolytic-refining operation.
Book Synopsis An Electrochemical Investigation of the Behaviour of Gold in Chloride Solutions by : E. Schalch
Download or read book An Electrochemical Investigation of the Behaviour of Gold in Chloride Solutions written by E. Schalch and published by . This book was released on 1980 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Electrochemical Investigation of the Behaviour of Gold in Chloride Solutions. IV. Results Obtained from Phase 2 of the Investigation by :
Download or read book An Electrochemical Investigation of the Behaviour of Gold in Chloride Solutions. IV. Results Obtained from Phase 2 of the Investigation written by and published by . This book was released on 1978 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of certain variables on the morphology and purity of gold cathodes were studied. The variables included temperature, current density, agitation, and the nature of the applied current. Both laboratory-scale and pilot-plant-scale cathodes were used. An unexpected correlation between the roughness and the purity of the cathodes was found. The more highly dendritic were the deposits, the less silver they contained as an impurity. The applications of this and related findings to plant practice are discussed, and operating procedures are recommended.
Book Synopsis Gold Ore Processing by : Mike D. Adams
Download or read book Gold Ore Processing written by Mike D. Adams and published by Elsevier. This book was released on 2016-05-03 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 1744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unrestricted Mintek Publications by :
Download or read book Unrestricted Mintek Publications written by and published by . This book was released on 1966 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of the South African Institute of Mining and Metallurgy by : South African Institute of Mining and Metallurgy
Download or read book Journal of the South African Institute of Mining and Metallurgy written by South African Institute of Mining and Metallurgy and published by . This book was released on 1981 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Electrochemical Study of Some Problems Related to the Electrorefining of Gold in Chloride Solutions by :
Download or read book An Electrochemical Study of Some Problems Related to the Electrorefining of Gold in Chloride Solutions written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive investigation of the chemical and electrochemical aspects of the electrorefining of gold in acidic chloride solutions has been carried out with a view to improving the overall performance of the process at the Rand Refinery. A laboratory study of the anodic dissolution of gold has confirmed the formation of gold(I) in an intermediate step. The factors influencing the extent to which gold(I) accumulates in the solution have been established and the kinetics of the disproportionation reaction, which produces the gold fines in the electrolyte, have been studied. The results of experiments designed to test the influence on the quality of the deposits of current density, agitation, temperature and composition of the electrolyte are described. The maximum applicable currents were found to correspond to the mass-transport-controlled deposition of gold(III) and the presence of gold(I) in the electrolyte has a marked influence on the quality of the deposits. The use of periodic current interruption was found to significantly improve the quality of the deposits whereas periodic current reversal produced deposits similar to those obtained with continuous current. The application of the results of the laboratory investigation to improvement of the process in plant-scale tests is described.
Author :Minerals, Metals and Materials Society. Extraction and Processing Division Publisher :Minerals, Metals, & Materials Society ISBN 13 : Total Pages :1406 pages Book Rating :4.:/5 (38 download)
Book Synopsis EPD Congress 1992 by : Minerals, Metals and Materials Society. Extraction and Processing Division
Download or read book EPD Congress 1992 written by Minerals, Metals and Materials Society. Extraction and Processing Division and published by Minerals, Metals, & Materials Society. This book was released on 1992 with total page 1406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the third in a series of proceedings documenting the EPD Congress, held yearly at the TMS Annual Meeting. State-of-the-art information on the extraction and processing of a wide range of materials is contained in the volume.
Book Synopsis Advances in Gold Ore Processing by : Mike D. Adams
Download or read book Advances in Gold Ore Processing written by Mike D. Adams and published by Elsevier. This book was released on 2005-12-02 with total page 1077 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis List of Unrestricted Mintek Publications Issued from 1966 to 1982 by : Helena Wilhelmina Glen
Download or read book List of Unrestricted Mintek Publications Issued from 1966 to 1982 written by Helena Wilhelmina Glen and published by . This book was released on 1983 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication lists the 834 unrestricted reports, 449 papers, 41 patents, and 4 other technical publications that were issued as publications of the National Institute for Metallurgy (NIM) and the Council for Mineral Technology (Mintek) from 1966 (the year of NIM's inception) to 31st December, 1982. For ease of reference, these publications are also classified under research topics. Also included are details of the periodical issued by Mintek and a list of its current miscellaneous publications, which include the annual report, and brochures and leaflets of various kinds.
Download or read book Metals Abstracts written by and published by . This book was released on 1996 with total page 1628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
