TY - CPAPER AU - Ivanova, Valentina AU - Mitrofanova, Galina AU - Nikitina, Irina TI - FLOTATION RECOVERY OF VALUABLE MINERALS FROM GRAVITY CONCENTRATION TAILINGS OF RARE-METAL TANTALUM-NIOBIUM ORE T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining PY - 2016 SP - 1073 EP - 1080 DO - 10.5593/sgem2016/b12/s04.138 PB - Stef92 Technology ER -