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铁矿石选矿中用硫酸铜和氟硅酸钠活化磁黄铁矿，使最终铁精矿合流量降至０．５％以下。指出硫酸铜和氟硅酸钠是磁黄铁矿石较好的活化剂与分散剂。
In iron ore beneficiation, pyrrhotite is activated with copper sulfate and sodium fluorosilicate to reduce the final iron concentrate flux below 0.5%. It is pointed out that copper sulfate and sodium fluorosilicate are the better activators and dispersants of pyrrhotite.