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The present work is concerned with the recovery of Cu and REEs from the processed Alloga carbonaceous shale (almost free from U) of Abu Zeneima area at Southwestern Sinai using H 2 SO 4  acid agitation leaching method. The working processed sample assays 0.18% Cu and 0.068% REEs. The applied optimum leaching conditions realized dissolution efficiencies of 91.2% for Cu and 99.1% for REEs. For selective separation of Cu, LIX973N diluted in kerosene was used. Cu was regenerated from the loaded organic phase under the optimum stripping conditions of 12% H 2 SO 4  acid with shaking time of 3 min at A/O ratio of 1/1 and then precipitated directly as Cu (OH) 2 . With respect to REEs extraction, the raffinate solution left behind after Cu recovery and assayed 0.16 g/L of REEs was subjected to Dowex50 W-X8 cation-exchange resin in its hydrogen form realizing loading efficiency of 79.5%. About 99% of eluted REEs was precipitated by the addition of 10% oxalic acid at pH of 1.1. A flowsheet for the preparation of CuO and RE 2 O 3  was proposed.

Recovery of copper and rare earth elements from the processed Alloga carbonaceous shale, Southwestern Sinai, Egypt