| 稀土矿浮选中Ce3+离子活化方解石去活机理研究 |
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| 引用本文： | 屈奇奇,仝志斌.稀土矿浮选中Ce3+离子活化方解石去活机理研究[J].同煤科技,2021(1):35-37,40. |
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| 作者姓名： | 屈奇奇 仝志斌 |
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| 作者单位： | 晋能控股煤业集团煤炭洗选大地选煤工程有限责任公司马道头选煤厂 |
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| 摘 要： | 通过单矿物浮选试验、红外光谱分析和Zeta电位测试等方法,研究稀土矿浮选中络合剂EDTA对Ce3+离子活化方解石的去活作用机理。试验研究结果表明,在低浓度条件下,EDTA对Ce3+离子活化方解石的浮选具有明显的抑制作用。机理分析结果表明,EDTA与方解石表面的Ce3+离子生成了一种稳定的络合物,可降低方解石表面的Zeta电位,从而去除Ce3+离子对方解石的活化作用。
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| 关 键 词： | 方解石 EDTA Ce3+离子 络合 去活 |
Research on Deactivation Mechanism of Ce3+Ions on Calcite in Rare Earth Ore Flotation |
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| Authors: | Qu Qiqi Tong Zhibin |
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| Affiliation: | (Madaotou Coal Preparation Plant of Dadi Coal Preparation Engineering Co.,Ltd.,Jinneng Holding Coal Industry Group,Datong Shanxi 037000) |
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| Abstract: | The deactivation mechanism of rare earth ore flotation complexing agent EDTA on Ce3+ion-activated calcite was studied by single mineral flotation experiment,IR spectroscopy and Zeta potential measurement.The experimental results show that EDTA can obviously inhibit the flotation of Ce3+activated calcite at low concentration.The mechanism analysis results show that EDTA forms a stable complex with Ce3+ions on the surface of calcite,which can reduce the zeta potential on the surface of calcite and remove the activation effect of Ce3+ions on calcite. |
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| Keywords: | Calcite EDTA Ce3+ions Complexation Deactivation |
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