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第一步用磁选方法排除磁性的铬铁矿,余下的矿石在有过量氧存在下,于690～810℃至少加热10分钟,使钛铁矿具有高的磁性,然后用磁选方法从非磁性铬铁矿中分选出磁化的钛
The first step is to exclude the magnetic chromite by magnetic separation. The remaining ore is heated in the presence of excess oxygen for a minimum of 10 minutes at 690 ~ 810 ° C to make the ilmenite highly magnetic. Then, Magnetic chromite separation of magnetized titanium