IJERT-EMS
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Solvent Extraction of Rare Earth Elements from the Mineralized Calcareous Shale of Wadi Nasib Area, Sinai, Egypt


Solvent Extraction of Rare Earth Elements from the Mineralized Calcareous Shale of Wadi Nasib Area, Sinai, Egypt
Authors : Marwa Mahmoud Rashad, Hamed Mira, Galal Abd El Wahab, Saeyda Abou El Enien, Salah Ahmed Zaki
Publication Date: 22-08-2017

Authors

Author(s):  Marwa Mahmoud Rashad, Hamed Mira, Galal Abd El Wahab, Saeyda Abou El Enien, Salah Ahmed Zaki

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Volume. 6 - Issue. 08 , August - 2017

e-ISSN:   2278-0181

Abstract

Aprocess for recovering a total REEs using di-2-ethylhexyl phosphoric acid(D2EHPA)in kerosene from the sulfate solution of calcareous shale ore material of Wadi Nasib area was performed. Chemical composition of the ore material revealed the presence of 0.2% of U, 0.18% of REEs as well as 2.7% of Cu as the elements of interest. The pregnant sulfate solution has been already prepared by agitation leaching of 250g of the fine ground ore sample using 200g/L of H2SO4 solution at S/L ratio of 1/4 and string for 4 h at 80ÂșC. The latter was found assaying 400 mg/L of REEs with achieved leaching efficiency of 96%. REEs extraction efficiency was achieved using 1M of D2EHPA. The stripping process of REEs from the loaded organic phase was conducted using 0.5M H2SO4 solution.

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