ACID LEACHING OF URANIUM FROM KAOLINIZED GRANITE OF EL SELA AREA, SOUTH EASTERN DESERT, EGYPT | ||||
| Nuclear Sciences Scientific Journal | ||||
| Article 12, Volume 6, Issue 1, 2017, Page 181-190 PDF (781.43 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/nssj.2017.30781 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| MOHAMED DEMERDASH; REDA A. GHAZALA; MONA M. FAWZY | ||||
| Nuclear Materials Authority,Cairo, Egypt | ||||
| Abstract | ||||
| El Sela area is one of the promising localities for the occurrences of uranium mineralization in the granitic rocks of the south Eastern Desert of Egypt. The area is a good example for highly altered samples as hematitization, espisyenitization and argillic alteration. The main purpose of this work is to answer for a question “ Is the physical separation techniques for the highly altered samples more effective in the leaching efficiency of uranium than the original sample?” to answer on this question it is necessary to study the characteristics of uranium leaching using sulfuric acid from a representative sample of this ore material assaying about 0.454% uranium and optimize the relevant factors then comparing between the leaching efficiency of the original sample versus the leaching efficiency of the physical beneficiated products. The optimum conditions for uranium leachability on the original sample reached 98% after 2 hours agitation time using 60 g\l sulphuric acid concentration, 1:3 solid\liquid ratio and -0.1 mm grain size at 80°C. On the other hand the same optimum conditions applied on the physical beneficiated products and the leaching efficiency reached to about 98% for sink fraction and about 98% for float fraction which proved that there is no requirement for the prior physical beneficiation of the highly altered sample. | ||||
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