Solvent Leaching Of Total Rare Earth Elements From Phosphate Rocks From Abu-Tartur Plateau
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The present work Studied the acid curing of Phosphates rock from Abu-Tartur plateau. The optimizing curing parameters were 500 sulfuric acid kg/t ores with 10% nitric acid relative to quantity of sulfuric acid, 110 ºC and thus for 2 h. The cured ore was subjected to extraction with solvent leaching for rare earth elements. About 95.6% extraction efficiency was reached under solvent leaching conditions, primene JMT 15% in kerosene, flow rate 1 ml/min, solid/aqueous phase ratio 1:3 and number of contact 5. The loaded organic solvent subjected to the stripping process. Stripping efficiency of rare earth elements from acid cured phosphate ores yielded about 99.8% under the optimum studied conditions which were 3M nitric acid, phase ratio A/O was 3:1 and shaking time was 15 min.
[Laila A.Guirguis, Ragaa El Sheikh, Nagdy M.Farag, Mohamed A.Elsayed, Mohammed S.Hagag (2014); Solvent Leaching Of Total Rare Earth Elements From Phosphate Rocks From Abu-Tartur Plateau Int. J. of Adv. Res. 2 (Jun). 0] (ISSN 2320-5407). www.journalijar.com
