Comparative Studies on Hydrometallurgy and Pyrometallurgy to the Extraction of Beryllium from Decrepitated Beryl from Wadi El Gemal Region, Eastern Desert, Egypt

Abstract Comparative Studies on hydrometallurgy and pyrometallurgy to the extraction of beryllium from decrepitated beryl from Wadi El Gemal Region, Eastern Desert, Egypt are carried out in this work in short, useful summary. Beryl is one of the important ore mineral constituents of the mineralized zones at Wadi El Gemal area, Eastern Desert, Egypt. Extraction of beryllium from beryl ore involves both (a) pyrometallurgical techniques through roasting of beryl with Na 2 SiF 6 followed by leaching of roasting beryl with commercial (dilute) H 2 SO 4 (b) hydrometallurgical processing techniques of beryl through direct leaching with H 2 SO 4 to produce directly sulfate liquor. 88% of beryllium was extracted by roasted beryl with Na 2 SiF 6 at 850°C for 1.5 hours and leaching the roasted product with 25% H 2 SO 4 AT 85 ° C for 3/4 hour. On the other hand, 95 % of beryllium was extracted directly after 20 minutes by direct leaching at 280°c with 10 mol/liter H 2 SO 4 . Therefore, this work sheds light on the study of the factors affecting both forms of beryllium extraction.