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本文阐述了白云鄂博共生铁矿石的矿物组成、稀土矿物嵌布特征以及优先浮选稀土工艺,同时对浮选过程的规律性作了描述。试验结果表明,采用H_(204)+AM作捕收剂、水玻璃作抑制剂和1号起泡剂组合的药剂制度,在矿浆pH9、温度为30—35℃的条件下,稀土矿物与非目的矿物可以得到较好的分离,从原矿直接优先浮选稀土可获得含RE060·13％、回收率61.82％的稀土精矿。
This paper describes the mineral composition of Bayan Obo co-born iron ore, the distribution characteristics of rare earth minerals and the preferred flotation rare earth technology, and the regularity of the flotation process is described. The experimental results showed that the combination of H_ (204) + AM as the collector, sodium silicate as the inhibitor and the No. 1 foaming agent system, under the conditions of slurry pH9, temperature of 30-35 ℃, rare earth minerals and non The purpose of the mineral can be better separation, direct flotation of rare earth directly from the ore can be obtained with RE060 · 13%, 61.82% recovery rate of rare earth concentrate.