Premium
Selective separation of Yttrium and Uranium from Xenotime Concentrate
Author(s) -
Ibrahium Hala A.,
Gado Mohamed A.,
Awwad Nasser S.,
Fathy Wael M.
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202100118
Subject(s) - dissolution , yttrium , beneficiation , leaching (pedology) , ammonium sulfate , chemistry , uranium , sulfate , inorganic chemistry , selective leaching , nuclear chemistry , metallurgy , materials science , chromatography , geology , organic chemistry , soil science , soil water , oxide
Abstract 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 (NH 4 ) 2 CO 3 within 40 min. dissolution time, dissolution temperature is 70 °C, and S/L ratio is 1/5.