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Synthèse et caractérisation du phosphate de hafnium comme échangeur d'ions

✍ Scribed by Marco G. Simona; Lucette R. Balsenc; Christian K. Jørgensen

Publisher
John Wiley and Sons
Year
1978
Tongue
German
Weight
351 KB
Volume
61
Category
Article
ISSN
0018-019X

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✦ Synopsis

The preparation, crystalline structure, properties and behaviour of the hafnium bis (monohydrogen phosphate) monohydrate as a cationic exchanger have been studied. The crystalline product has been characterized by elemental analysis, X‐ray Powder patterns, thermal analysis, photoelectron spectrometry and infra red spectroscopy. A layered structure in which the hafnium and phosphorus atoms are disposed in such a way as to form zeolitic‐type cavities is suggested. The reversibility of the exchange with respect to sodium ions is discussed and can be related to the water content of the exchanger.

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