根据加拿大某磁铁矿的原矿性质,进行了脱除磁黄铁矿浮选试验研究.采用硫酸+硫酸铜作为活化剂,异戊黄药+丁铵黑药作为捕收剂,BK204作为起泡剂,可以实现磁铁矿与磁黄铁矿的分离.实验室闭路浮选试验获得铁精矿铁品位67.51％,铁回收率92.69％,铁精矿硫品位0.16％,硫脱除率94.72％的选别指标.%According to the properties of a magnetite ore from Canada,experimental study on desulphurization by flotation had been conducted.The pyrrhotite was successfully separated from magnetite with sulphuric acid and cupric sulfate as activators,isoamyl xanthate and ammonium butyl as collectors,BK204 as a frother.A closed-circuit flotation test was conducted on the basis of conditional experiments and open-circuit flotation experiments,with which an iron concentrate of 67.51％ Fe and 0.16％ S with a Fe recovery of 92.69％ and a Desulphurization rate of 94.72％ was obtained.
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