Research Status and Prospect of Niobium Ore Beneficiation Technology
In view of the demand for efficient separation technology of niobium ore resources,through literature research and comparison,the distribution,deposit types and characteristics of niobium resources in the world are systematically intro-duced.The research status of mineral processing technology and flotation reagents for three main types of niobium ore,such as pyrochlore ore,niobium iron ore and Bayan Obo iron-rare earth-niobium co-associated ore,are summarized.It is pointed out that the combined process of gravity separation,magnetic separation and flotation is mostly used in the beneficiation of niobium ore to adapt to the characteristics of different types of niobium ore.The research on flotation reagents mainly focuses on three directions:modification of conventional reagents,development of new reagents and research and development of composite rea-gents.The research shows that the future development of niobium ore beneficiation technology should strengthen the research on new flotation reagents and their mechanism of action,pay attention to the research and application of the combined process of beneficiation and metallurgy,and strengthen the research and development of recovery technology for fine-grained niobium min-erals and complex co-associated niobium minerals.The research results can provide guidance for the research of efficient sepa-ration technology of niobium ore resources,which is of great significance to improve the utilization efficiency of niobium ore re-sources and promote the sustainable development of niobium industry.
pyrochloreniobiteBayan Obo co-associated type niobium orebeneficiation processflotation reagent
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