Tóm tắt:

This paper presents the results on possibilities of preliminary enrichment for raw ore in Sin Quyen copper mine, Lao Cai by X-ray sensor technology. Raw ore after Processing are classified into particle sizes 8-7-15 mm and 15-45 mm, containing 0.92 to 1.06 % copper. Experimental resuits shovved that the preliminary enrichment has been conducted, removing about ~ 50 % of the gangue amount (the lowest content ranges from 0.13 to 0.15 % Cu); the ore is improved (from 0,92-5-1,06 % to 1,5^2,3 % Cu)