Recovery of some valuable elements from lamprophyre dykes in the Abu Rusheid area, Southeastern Desert, Egypt |
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Authors: | D I Zaki N Shawky E M El-Sheikh F Y Ahmed M E Ibrahim |
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Institution: | 1. Nuclear Materials Authority, El Maadi, P.O.Box 530, Cairo, Egypt 2. Chemistry Dept., Faculty of Science for Girl, Al-Azhar University, Cairo, Egypt
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Abstract: | In the Abu Rusheid area, Southeastern Desert of Egypt, polymineralized (HREEs, U, Zn and Pb) lamprophyre dykes are recently
recorded. The lamprophyre dykes cut cataclastic rocks along share zones in NNW-SSE trends. The secondary U-minerals are essentially
represented by uranophane, kasolite, torbernite and autunite. Experimental work was carried out on the lamprophyre dykes for
the recovery of uranium and other valuable elements (e.g. Zn, Pb and Al) from 50 kg of technological sample. The optimum conditions
were: 100 g/L sulfuric acid concentration, 1:5 S/L (solid/liquid) and soaking for 15 days at room temperature. The leaching
efficiencies for the recovery of uranium and other elements like Al, Zn and Pb were 40, 33.6, 98.8 and 78, respectively. |
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Keywords: | uranium zinc aluminum lead Abu Rusheid area |
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