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提出了在脉动场中分选硫化铁和氧化铁的新磁选法，叙述了该法的物理基础和实验室试验结果．半工业磁选试验设备已研制成功．并投入试验．
A new magnetic separation method was proposed to classify iron sulfide and iron oxide in pulsating field. The physical basis and laboratory test results of the method were described. Semi-industrial magnetic separation test equipment has been successfully developed. And put into trial.