PLACER DEPOSITS OF BRAHMAGIRI COAST, ODISHA - A NEW RESOURCE FOR INDUSTRIAL HEAVY MINERALS

摘要

Characterization and beneficiation studies have been carried out on Brahmagiri placer deposits of Puri, Dist., Odisha. The studies show that this deposit contains potential amount of heavy minerals. The dune sands contain higher heavy minerals than that of beach sand. One of the dune sand samples collected from this deposit shows heavy mineral content of about 29 % also. A composite sand sample is prepared and heavy mineral recovery is studied from this by using gravity table. During recovery of heavy minerals both fresh and sea water are used to see their effect on grade and recovery of concentrate. Sea water rougher gravity table data shows better results than fresh water rougher gravity table. The gravity table study of composite sample shows a yield of 14.8% with a grade of 91.2 % and 93.2 % recovery.