| 鞍千贫赤铁矿磁选精矿反浮选提纯试验 |
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| 引用本文： | 徐冬林,李佩昱,李艳军,高鹏,余建文.鞍千贫赤铁矿磁选精矿反浮选提纯试验[J].矿产保护与利用,2020,40(2):70-73. |
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| 作者姓名： | 徐冬林 李佩昱 李艳军 高鹏 余建文 |
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| 作者单位： | 1.鞍钢集团鞍千矿业责任有限公司，辽宁 鞍山 114043 |
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| 摘 要： | 以鞍千贫赤铁矿石的磁选精矿为研究对象，采用醚胺类复配捕收剂DLT-Ⅰ和改性淀粉抑制剂DLT-Ⅱ，开展反浮选条件优化试验研究。结果表明，适宜的矿浆pH值为9.0，捕收剂DLT-Ⅰ用量为125 g/t，抑制剂DLT-Ⅱ用量为300 g/t。在单因素条件试验的基础上，经一粗一精三扫的浮选闭路试验，获得了浮选精矿TFe品位67.01%、回收率93.70%的技术指标，尾矿TFe品位为15.28%，为鞍千贫赤铁矿石的高效开发利用提供了借鉴。
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| 关 键 词： | 磁选精矿 反浮选 捕收剂 抑制剂 |
| 收稿时间： | 2019-11-18 |
Reverse Flotation for Improving Quality on Magnetic Concentrate of Low-grade Hematite Ore from Anqian |
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| Affiliation: | 1.Anqian Mining Co., Ltd., Anshan Iron and Steel Group, Anshan 114043, China2.School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China3.National-local Joint Engineering Research Center of High-efficient Exploitation Technology for Refractory Iron Ore Resources, Shenyang 110819, China |
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| Abstract: | The reverse flotation condition test was carried out on the magnetic concentrate of low-grade hematite ore from Anqian by using the ether amine-based compound collector DLT-Ⅰ and the modified starch depressant DLT-Ⅱ. The suitable chemical system was determined to be the pulp pH value of 9.0, the collector DLT-Ⅰ dosage of 125 g/t, and the depressant DLT-Ⅱ dosage of 300 g/t. Based on the conditional tests, the technical indexes of the flotation concentrate with the TFe grade of 67.01%, the iron recovery of 93.70%, and the tailings grade of 15.28% was obtained by the process of the reverse flotation closed process of one roughing-one cleaning-three scavenging, which provided a reference for the efficient development and utilization of low-grade hematite ore from Anqian. |
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