The separation of uranium from other elements by ion exchange chromatography PDF Download

Author: F. W. E. Strelow
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Johann Korkisch
Publisher: Elsevier
ISBN: 1483186318
Category : Science
Languages : en
Pages : 633

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Modern Methods for the Separation of Rarer Metal Ions describes several separation methods of more than 50 elements. This book is divided into 19 chapters that include separation methods involving the actinide elements, rare earths, and many rarer elements of the main and transition groups of the periodic table. The introductory chapter discusses the principles of the separation techniques presented in this book. The remaining chapters explore the application of specific separation methods, such as ion exchange, chromatography, liquid-liquid extraction, distillation, and coprecipitation. The approach of each chapter is a presentation of separation principle of an element first followed by numerous examples of applications to the solution of practical problems encountered in separation chemistry. Chapters 2 and 3 examine the separations involving the actinides and rare earth elements using ion exchange and liquid-liquid extraction These are followed by chapters dealing with separations of other rarer elements, which have been arranged according to their position in the periodic table. These elements are: Li, Rb, Cs, Fr, Be, Ra, Ga, In, Tl, Ge, Ag, Au, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Tc, Re and the platinum metals. This book will be of great use to analytical chemists.

Author: Usha Narayanan
Publisher:
ISBN:
Category :
Languages : en
Pages : 65

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Two methods were tested for the quantitative separation of uranium from elemental impurities using commercially available resins. The sorption and elution behavior of uranium and the separation of it from a variety of other elements was studied. The first method utilized an anion exchange resin while the second method employed an extraction resin. The first method, the anion exchange of uranium (VI) in an acid chloride medium, was optimized and statistically tested for quantitative recovery of uranium. This procedure involve adsorption of uranium onto Bio-Rad AG 1X8 or MP-1 ion exchange resins in 8 M HCl, separation of uncomplexed or weakly complexed matrix ions with an 8 M HCl wash, and subsequent elution of uranium with 1 M HCl. Matrix ions more strongly adsorbed than uranium were left on the resin. Uranium recoveries with this procedure averaged greater than 99.9% with a standard deviation of 0.1%. In the second method, recovery of uranium on the extraction resin did not meet the criteria of this study and further examination was terminated.

Author: Sallie A. Fisher
Publisher:
ISBN:
Category : Colorimetric analysis
Languages : en
Pages : 32

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Author:
Publisher: Elsevier
ISBN: 0080858023
Category : Science
Languages : en
Pages : 585

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Extraction Chromatography

Author: Irena Krawczyk
Publisher:
ISBN:
Category :
Languages : en
Pages : 15

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Author: Shripad Moreshwar Khopkar
Publisher: New Age International
ISBN: 8122420273
Category : Chromatographic analysis
Languages : en
Pages : 13

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Author: Irena Krawczyk (chemia)
Publisher:
ISBN:
Category :
Languages : en
Pages : 15

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Author: Gregory R. Choppin
Publisher: Springer Science & Business Media
ISBN: 1489914064
Category : Science
Languages : en
Pages : 276

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The symposium which provided the incentive for this volume was conducted in San th Diego, California as a part of the 207 National Meeting of the American Chemical Society, March 13-17, 1994. It was conceived partly to continue an informal decennial sequence of sym posia dedicated to the topic off element separations. A lot has changed in the world of f ele ments over the last ten years, precipitating a change in emphasis which should be evident to most practitioners in the field. Production and reprocessing of nuclear fuels are no longer the principal drivers of f element separation technology. Separations technology for environment restoration, waste disposal, and the preparation of high purity lanthanides are now the defming parameters in this important field. These imperatives are reflected in the contributions to this volume. The symposium itself must be considered a success, as the attendance at all sessions was above expectations, despite the fact that it was conducted on the last two days of a large five day meeting. Our thanks to the speakers for their quality presentations, and to the audience who persevered to the end of a long meeting and against the temptation of the excellent weather of San Diego in the springtime. A complete list of symposium participants is given in Appendix 1. Preparation of this volume has been a relatively painless undertaking, largely as a result ofthe high quality ofthe submitted papers.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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A previously reported method developed for the determination of uranium at the submicrogram level by alpha spectrometric-isotopic dilution in soil, sediment, water, and biota. The uranium is separated from most of the other elements by making the solution 0.4 M in nitric acid and 1.6 M in aluminum nitrate and passing it through a column containing a strongly basic anion exchange resin. The uranium is electroplated onto stainless steel and assayed alpha spectrometrically. Sample preparation and techniques for handling interfering elements are discussed. (JGB).