It was asserted that the ore is mainly composed of minerals of kurnakovite, inderite and pinnoite.
确定了该硼镁矿的主要矿物组成为库水硼镁石、多水硼镁石及柱硼镁石。
The XRD characterization and chemical analysis of boron concentrates and tailings showed that pinnoite and calcined gypsum has been basically separated through reverse flotation.
此外，还考察了擦洗对硼矿富集的影响，结果表明擦洗可以有效去除柱硼镁石矿中的可溶性盐，改善了浮选效果。
There is a large number of pinnoite ore in Dachaidan area of Qinghai province, these boron resources can not be directly used as raw materials for boron chemicals because of low grade (less than 10%).
在青海大柴旦地区有大量的柱硼镁石矿由于品位低下（低于10%），不能直接用作生产硼化学品的原料。
There is a large number of pinnoite ore in Dachaidan area of Qinghai province, these boron resources can not be directly used as raw materials for boron chemicals because of low grade (less than 10%).
在青海大柴旦地区有大量的柱硼镁石矿由于品位低下（低于10%），不能直接用作生产硼化学品的原料。
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