Selective Solvent Extractants for the Refining of Platinum Metals PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A refining scheme based on solvent extraction and ion-exchange techniques has been developed for the platinum-group metals. The process is being operated on a commercial unit in South Africa. In two of the separations involved, viz, the separation of platinum and palladium from the rest of the platinum-group metals and the separation of palladium, novel selective extractants are used. The structure, properties, mechanism of extraction, and plant performance of these solvents are described. A new flowsheet is presented for the refining of platinum and palladium by use of the two solvents, and the possible advantages of this route compared with the conventional process are discussed. (AUAB).
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
A refining scheme based on solvent extraction and ion-exchange techniques has been developed for the platinum-group metals. The process is being operated on a commercial unit in South Africa. In two of the separations involved, viz, the separation of platinum and palladium from the rest of the platinum-group metals and the separation of palladium, novel selective extractants are used. The structure, properties, mechanism of extraction, and plant performance of these solvents are described. A new flowsheet is presented for the refining of platinum and palladium by use of the two solvents, and the possible advantages of this route compared with the conventional process are discussed. (AUAB).
Author: M.I. El Guindy Publisher: Elsevier ISBN: 1483189481 Category : Technology & Engineering Languages : en Pages : 672
Book Description
Precious Metals 1982 presents the variety of technical innovations in the application of precious metals. This book discusses the advances in recovery and refining and analysis of precious metals. Organized into 10 parts encompassing 47 chapters, this book begins with an overview of the fundamental experiments to elicit the mode of solidification for a small casting using the investment casting method. This text then describes the various medical uses of silver and its salts with the antibacterial properties of silver ions used in burn therapy, water purification, and to prevent infections. Other chapters consider the practical feasibility of a process involving the reaction of oxygen with gold particles in a potassium cyanide solution to produce potassium gold cyanide. This book discusses as well the major catalytic applications of the precious metals. The final chapter deals with fraud involving gold. This book is a valuable resource for engineers, metallurgists, geologists, jewelers, and goldsmiths.
Author: Frank Crundwell Publisher: Elsevier ISBN: 0080968104 Category : Technology & Engineering Languages : en Pages : 623
Book Description
This book describes and explains the methods by which three related ores and recyclables are made into high purity metals and chemicals, for materials processing. It focuses on present day processes and future developments rather than historical processes. Nickel, cobalt and platinum group metals are key elements for materials processing. They occur together in one book because they (i) map together on the periodic table (ii) occur together in many ores and (iii) are natural partners for further materials processing and materials manufacturing. They all are, for example, important catalysts – with platinum group metals being especially important for reducing car and truck emissions. Stainless steels and CoNiFe airplane engine super alloys are examples of practical usage. The product emphasises a sequential, building-block approach to the subject gained through the author's previous writings (particularly Extractive Metallurgy of Copper in four editions) and extensive experience. Due to the multiple metals involved and because each metal originates in several types of ore – e.g. tropical ores and arctic ores this necessitates a multi-contributor work drawing from multiple networks and both engineering and science. - Synthesizes detailed review of the fundamental chemistry and physics of extractive metallurgy with practical lessons from industrial consultancies at the leading international plants - Discusses Nickel, Cobalt and Platinum Group Metals for the first time in one book - Reviews extraction of multiple metals from the same tropical or arctic ore - Industrial, international and multidisciplinary focus on current standards of production supports best practice use of industrial resources
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Author: M.I. El Guindy
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Author: G. M. Ritcey
Author: Frank Crundwell
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Author: Fathi Habashi
Author: J. E. Hoffmann
Author: M. Streat
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