Ion Exchange Recovery of Uranium and Rare Earths after their Selective Leaching from Abu-Tartur Phosphate Deposits, W.D., Egypt.
- Chemistry Department, Faculty of Science, Helwan University.
- Nuclear Materials Authority, P.O.Box 530, El Maadi, Cairo, Egypt.
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A selective leaching procedure for uranium and the REEs is applied upon Abu-Tartur rock phosphate of the W.D. of Egypt using a mixed reagent of citric acid / calcium citrate in a manner to leave the phosphate values almost intact for later processing. The leaching conditions have thus been applied upon a representative sample of the weathered rock assaying 30 ppm U and 1058 ppm REEs. Before being processed, the representative sample was completely characterized through both mineralogical and chemical analyses of its major and some of the interesting trace elements. From the obtained leach liquor, uranium has been recovered by the anion exchange Amberlite IRA-400 resin and from the uranium-free effluent, the REEs were recovered via the cation exchange Dowex 50W-X8 resin.
[A.B. Farag, A.R. Bakry, N.A. Abdelfattah and A.M. Elwy (2015); Ion Exchange Recovery of Uranium and Rare Earths after their Selective Leaching from Abu-Tartur Phosphate Deposits, W.D., Egypt. Int. J. of Adv. Res. 3 (May). 32-41] (ISSN 2320-5407). www.journalijar.com
