TY - CPAPER AU - Azamat Yessengaziyev AU - Azamat Toishybek AU - Arailym Mukangaliyeva AU - Albina Yersaiynova AU - Nurgali Abdyldayev TI - SOLVENT EXTRACTION OF NIOBIUM FROM FLUORIDE-SULFURIC ACID SOLUTIONS OBTAINED BY LEACHING WASTE FROM TITANIUM-MAGNESIUM PRODUCTION T2 - 25th International Multidisciplinary Scientific GeoConference Proceedings SGEM2025, Science and Technologies in Geology, Exploration and Sustainable Mining PY - 2025 SP - 405 EP - 414 DO - 10.5593/sgem2025/1.1/s04.49 PB - STEF92 Technology ER -