目前钽-铌铁矿矿石主要是用重选法选别。在钽精矿高价的情况下,由于钽-铌铁矿在大部分矿石中多半是呈细粒浸染状以及矿物的高度脆性,所以阶段重选流程就被认为是从矿石中分出钽-铌铁矿的合理流程,但是,尽管应用了阶段选别,钽-铌铁矿在粗精矿中的回收率在许多情况下不超过50～60％,此外,正为技术经济计算所指出的,从含量低 Currently tantalum - niobium ore is mainly re-election method of sorting. In the case of high tantalum concentrates, the stage re-selection process is considered to separate the tantalum-niobium from the ore due to the fact that the tantalum-niobite is mostly finely disseminated in most of the ores and highly brittle in minerals However, the recovery of tantalum-columbite ore in crude concentrates, in many cases, does not exceed 50-60% in spite of the use of stage sorting, as is also the case with the technical-economic calculations, Low content