The Ion Exchange Separation of Zirconium and Hafnium

The Ion Exchange Separation of Zirconium and Hafnium PDF

Author: Kenneth Street

Publisher:

Published: 1949

Total Pages: 6

ISBN-13:

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In the course of a rather cursory examination of the elution of tetra-positive ions from the cation exchange resin Dowex 50 with hydrochloric acid solutions, the authors have discovered a very effective method of separating zirconium from hafnimu. In view of the great labor involved in preparing even reasonably pure hafnium compounds by existing methods, they feel that this procedure will prove very valuable to those interested in obtaining hafnium compounds free of zirconium. Although the conditions which give satisfactory separation were first worked out using microgram amounts of material and the radioactive tracer technique, the run described here, involving milligrams of material, illustrates the applicability of the method to the production of significant amounts of pure hafnium and zirconium.

Analytical Chemistry of Zirconium and Hafnium

Analytical Chemistry of Zirconium and Hafnium PDF

Author: Anil K. Mukherji

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 296

ISBN-13: 1483184307

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Analytical Chemistry of Zirconium and Hafnium compiles literature on the characterization and analysis of zirconium and hafnium. Various methods in studying the properties of the featured elements are presented in this book. This book also discusses the aqueous solutions of zirconium and hafnium. It then explains the methods such as dissolution of ores and alloys, detection and identification, and gravimetric determinations. This text further examines the titrimetric, electrometric, and absorptiometric methods, as well as methods of separations using ion-exchange and using solvent extraction, along with separation of hafnium from zirconium. The latter part of this text presents methods such as spectrographic analyses, X-ray analyses, and neutron activation analysis and separation of tracers. This book will come in handy for chemists and chemistry students, as well as for others interested in studying zirconium and hafnium.

Hydrometallurgy in Extraction Processes, Volume II

Hydrometallurgy in Extraction Processes, Volume II PDF

Author: C. K. Gupta

Publisher: Routledge

Published: 2017-11-01

Total Pages: 280

ISBN-13: 1351439618

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This two-volume set provides a full account of hydrometallurgy. Filled with illustrations and tables, this work covers the flow of source material from the mined or concentrate state to the finished product. It also highlights ion exchange, carbon adsorption and solvent extraction processes for solution purification and concentration. The extensive reference list-over 850-makes this set a valuable resource for extraction and process metallurgists, researchers, and practitioners.

Rare Metal Extraction by Chemical Engineering Techniques

Rare Metal Extraction by Chemical Engineering Techniques PDF

Author: W. D. Jamrack

Publisher: Elsevier

Published: 2014-07-15

Total Pages: 399

ISBN-13: 1483180565

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Rare Metal Extraction by Chemical Engineering Techniques describes the use of chemical engineering techniques in the extraction and purification of rare metals such as uranium, thorium, and zirconium as well as hafnium, titanium, beryllium, and vanadium. The various chemical extraction stages from ore to metal are discussed. Comprised of nine chapters, this book begins with an examination of ore breakdown processes including dilute acid leaching and the breakdown of concentrated acids, alkalis, and fluorides as well as chlorination. The reader is then introduced to ion-exchange purification; solvent extraction; and dryway conversion processes. Subsequent chapters focus on metal production by high-temperature reduction techniques; molten salt electrolytic processes; and iodide decomposition processes. The final chapter includes a selection of complete flowsheets for the extraction and purification rare metals from ores. This monograph will be of value to metallurgists, chemical engineers, chemists, and others who are interested in the extraction of rare metals.

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