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浮选法富集低品位柱硼镁石矿的工艺研究

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Indexed by: Journal Article

Date of Publication: 2010-04-20

Journal: 辽宁化工

Volume: 39

Issue: 4

Page Number: 356-361

ISSN: 1004-0935

Key Words: 柱硼镁石;反浮选;十二烷胺醋酸盐;富集

Abstract: 以油酸钠和十二烷胺醋酸盐(DAA)为复合捕收剂,以偏硅酸钠为调整剂,利用反浮选工艺富集青海大柴旦低品位柱硼镁石(MgO·B2O3·3H2O)矿.实验结果表明,采用反浮选法可将柱硼镁石与石膏、碱式碳酸镁、食盐等杂质分离.通过实验确定了适宜的工艺条件,即:捕收剂十二烷胺醋酸盐用量1.5 kg/t,油酸钠用量0.15 kg/t,调整剂偏硅酸钠0.92 kg/t;液固比6∶1;浮选温度30~35 ℃;浮选时间10 min;矿浆pH=9.0~9.2.在此条件下,一次浮选所得1#硼精矿中B2O3品位由原矿的7.82%提高至12.3%,产率达60%以上.

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