关键词: 钽;铌;浮选技术;作用机理

Abstract: The resource characteristics of tantalum-niobium ore in China is more complicated than that of in abroad, and it should be combined with gravity , magnetic, floating, electricity, metallurgy or combined process for recovering .Flotation method is not dominant in the separation of part of tantalum-niobium ore while the recovery effects of tantalum-niobium-tungsten-tin ore, fine tantalum-niobium slime and other valuable metals is obvious , and it is an effective method to realize the comprehensive utilization of resources .Current status of flotation technology of tantalum-niobium ore are summarized .Research findings of flotation technology and action mechanism and their deficiency are systematically introduced . The development prospect of regents is put forward as a result in detail .Hydroxamic acid with multiple polar groups and organophosphonic acid are excepted to be the main development direction of tantalum -niobium flotation reagents .

Key words: tantalum;niobium;flotation technology;action mechanism