Full Length Research Paper

Capability of Uranium Heap Leaching from Gattar and El Missikat Area, Eastern Desert, Egypt: A Kinetic Approach

M. S. Nagar*, K. F. Mahmoud, F. A. El-Sayed, W. M. Morsy, A. H. Mady and A. M. Mohamed

Article Number - 604F505D02227  | Vol. 2(3), pp. 24-34., March 2021  | 
 Received: 26 October 2020 |  Accepted: 3 February 2021  |   Published: 31 March 2021

Copyright © 2024 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0.


Detailed studies of uranium heap leaching from different uranium mineralization resources situated in Eastern Desert of Egypt were investigated using sulfuric acid via batch experiments. Bench scale leaching tests using small column were also investigated after optimum conditions were obtained. The obtained data indicated that leaching of GII mineralization attained about 78.3% using 34 kg/ton at 44 days leaching time. On the other hand, leaching efficiency of uranium from El Missikat mineralization was about 86.6% which is higher than GII mineralization using 28kg/ton at a 40 days leaching time. Kinetics reaction models of column tests were investigated to improved understanding of the chemical reaction mechanism involved in the dissolution of this refractory mineral that influence the leaching process. Based on the leaching results of the two mineralized occurrences, the rate of the uranium dissolution is controlled by both the chemical reaction and the diffusion reaction. However, the diffusion reaction control was more predominant than the chemical reaction.


Keywords: El Missikat, Gattar, Heap leaching, Column test, Kinetic reaction models.




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M. S. Nagar1*, K. F. Mahmoud1, F. A. El-Sayed2, W. M. Morsy1, A. H. Mady1 and A. M. Mohamed2

1Chemistry Department, Faculty of Science, Menoufia University, Egypt.

2Nuclear Materials Authority, Egypt.

*Corresponding author. Email: [email protected]


How to Cite this Article

Nagar, M. S., Mahmoud, K. F., El-Sayed, F. A., Morsy, W. M., Mady, A. H. & Mohamed, A. M. (2021). Capability of Uranium Heap Leaching from Gattar and El Missikat Area, Eastern Desert, Egypt: A Kinetic Approach. Journal of Research in Science and Technology, 2(3): 24-34.



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Abbreviation: J. Res. Sci. Technol.
ISSN: 2971-7728 (Online)
Start Year: 2020
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