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There are several silica sand deposits in Sinai, but they require upgrading to provide a raw materials acceptable for the glass manufacture. This study records beneficiation of low-grade silica sand deposits near Um Bogma at west central Sinai. The improvement techniques of ore dressing involving wet sieving, attrition scrubbing, decantation, gravimetric and magnetic separations have been applied depending on the physical properties of the constituents. INTRODUCTION Sinai is endowed with enormous resources of white silica sand which is the main ingredient of glass manufactures. Some of these white sands are contaminated by iron oxides and other metallic elements that do not meet the basic chemical specifications for industrial utilization, namely for glass production. These low grade white sands require upgrading by various combinations of mineral processing techniques to provide silica sand of high quality and great abundance acceptable for glass industry. Some of these deposits of silica sand occur within Abu Thora Formation representng the Upper Sandstone Series of the Carboniferous age (Abu-Shabana, 1998 and Kora, 1984). The present study reports improvement of these deposits through mineral processing techniques of physical concentration; these were: wet sieving, scrubbing, decantation, shaking table and magnetic separation. A representative sample of 50 Kegs of the sand were used in the present study, and was directed as follows: 30 Kegs were directed to the upgrading processes, 6 samples 100g each were used for screen analyses (Table 1) and the remaining (29.4 Kegs) were stored as a reference sample. ISSN 2314-5609 Nuclear Sciences Scientific Journal vol. 1, p 167 17

IMPROVEMENT OF LOW-GRADE SILICA SAND DEPOSITS IN UM BOGMA AREA-WEST CENTRAL SINAI, EGYPT