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引言白云鄂博矿是以铁、稀土、铌和萤石为主的多金属共生的巨型矿床。铌储量占全国总储量的99％。但铌的矿物种类多、嵌布粒度细、品位低,给选矿回收铌带来困难,成为包头矿选矿尚未突破的难题之一。六十年代仅有个别单位从事主、东矿回收铌的研究,如1966年地质部矿产综合利用研究所,从东矿霓石型矿样混合浮选——选铁流程的尾矿中,研究了铌硅分离,获得单
INTRODUCTION Bayan Obo Mine is a multi-metal symbiotic giant deposit dominated by iron, rare earth, niobium and fluorite. Niobium reserves account for 99% of the country’s total reserves. However, many types of niobium minerals, embedded fine grain size, low grade, beneficiation recovery of niobium difficult, as Baotou ore dressing has not yet broken one of the problems. In the 1960s, only individual units engaged in the research on the recovery of niobium from the main ore and the eastern ore. For example, in 1966, the Institute of Mineral Resources Comprehensive Utilization of the Ministry of Geology, from the tailings of the aerated ore type mixed flotation- Silicon niobium separation, to obtain a single