Selective separation of Yttrium and Uranium from Xenotime Concentrate

A new process suggested for the selective dissolution of rare earth elements REEs from xenotime concentrate produced after physical beneficiation namely; shaking table and froth flotation were proposed using ammonium sulfate. The suggested procedure was established upon the selectivity of ammonium s...

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Bibliographic Details
Published inZeitschrift für anorganische und allgemeine Chemie (1950) Vol. 647; no. 15; pp. 1568 - 1577
Main Authors Ibrahium, Hala A., Gado, Mohamed A., Awwad, Nasser S., Fathy, Wael M.
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 12.08.2021
Subjects
Ammonium sulfate
Dissolution
Flotation
Leaching
Rare earth elements
Reaction mechanisms
Selectivity
Trace elements
Uranium
Xenotime
Yttrium
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Summary:A new process suggested for the selective dissolution of rare earth elements REEs from xenotime concentrate produced after physical beneficiation namely; shaking table and froth flotation were proposed using ammonium sulfate. The suggested procedure was established upon the selectivity of ammonium sulfate as a leaching agent of rare earth element. The Dissolution kinetic analysis of valuable elements of the dissolution process and the suggested reaction mechanism concerning the rare earth and ammonium sulfate has been conferred. The obtained data confirmed that the main leaching suggested mechanism of rare earth was fit chemically controlled and the calculated activation energy was 40.597 kJ/mole. The paper was then concerning to disperse yttrium selectively from the rare earth concentrate via 200 g/L concentration of (NH4)2CO3 within 40 min. dissolution time, dissolution temperature is 70 °C, and S/L ratio is 1/5.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.202100118