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研究了大足中低品位天青石矿的工艺矿物学特性，该矿石天青石与主要脉石矿物在物性上的最大差异是密度；进行了重选试验，采用跳汰－摇床的工艺，可以把原矿品位为69．75％的天青石矿分达成品位为92．44％的优质精矿，回收率为82．43％；生产实践取得了较好指标，达到或超过设计指标，证明了试验所选取的条件是正确的，工艺是合理的。
The technological mineralogical characteristics of mid-low-grade celestite from Dazu were studied. The biggest difference in physical properties between the celestite and the main gangue minerals was the density. The re-election test was conducted using the technology of jig-shaker Raw ore grade of 69.75% celestite ore reached grade of 92.44% quality grade concentrate, the recovery rate was 82.43%; production practice has made a good indicator to meet or exceed the design indicators that the test Select the conditions are correct, the process is reasonable.