| 低品位磷矿浮选试验研究 |
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| 引用本文： | 杨峻杰,庹必阳,韩朗,姚艳丽,谢飞,龙森.低品位磷矿浮选试验研究[J].矿冶工程,2016,36(5):49-52. |
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| 作者姓名： | 杨峻杰 庹必阳 韩朗 姚艳丽 谢飞 龙森 |
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| 作者单位： | 1.贵州大学 矿业学院, 贵州 贵阳 550025;
2.贵州省优势矿产资源高效利用工程实验室, 贵州 贵阳 550025;
3.贵州省非金属矿产资源综合利用重点实验室, 贵州 贵阳 550025 |
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| 基金项目： | 国家自然科学基金(51464007)；博士基金(贵大人基合字(2013)51号) |
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| 摘 要： | 对某地低品位磷矿进行了浮选试验研究, 探索了磨矿细度、捕收剂(十二胺)用量、抑制剂(硫酸)用量及浮选流程对浮选指标的影响。结果表明, 采用一粗一精一扫、中矿返回粗选的浮选工艺流程, 在磨矿细度为-0.074 mm粒级占78%、粗选十二胺用量500 g/t、硫酸用量18 kg/t, 精选十二胺用量200 g/t、硫酸用量9 kg/t, 扫选硫酸用量14.4 kg/t条件下, 针对P2O5品位为22.41%的原矿可获得P2O5品位32.47%、P2O5回收率83.32%的磷精矿, 实现了P2O5的有效富集。
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| 关 键 词： | 磷矿 浮选 捕收剂 抑制剂 |
| 收稿时间： | 2016-05-04 |
Laboratory Experiment on Flotation of Low-grade Phosphate Rock |
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| YANG Jun-jie,TUO Bi-yang,HAN Lang,YAO Yan-li,XIE Fei,LONG Sen.Laboratory Experiment on Flotation of Low-grade Phosphate Rock[J].Mining and Metallurgical Engineering,2016,36(5):49-52. |
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| Authors: | YANG Jun-jie TUO Bi-yang HAN Lang YAO Yan-li XIE Fei LONG Sen |
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| Affiliation: | 1.School of Mining, Guizhou University, Guiyang 550025, Guizhou, China;
2.Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang 550025, Guizhou, China;
3.Guizhou Engineering Lab of Mineral Resources, Guiyang 550025, Guizhou, China |
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| Abstract: | Flotation experiments were carried out for a lean phosphate rock from Guizhou for investigating the influences of grinding fineness, collector (lauramine, LA) dosage, depressant (sulfuric acid, SA) dosage and flotation process on flotation indices. In the experiment, the raw ore with P2O5 content of 22.41%, at a grinding fineness of -0.074 mm 78%, was processed with a flowsheet consisting of one-stage roughing, one-stage cleaning and one-stage scavenging, with the middlings returning to roughing, by using the following optimized reagent system: LA 500 g/t and SA 18 kg/t for roughing, LA 200 g/t and SA 9 kg/t for cleaning, and SA 14.4 kg/t for scavenging, which produced a phosphate concentrate approaching 32.47% P2O5 grade at 83.32% recovery. |
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| Keywords: | phosphate rock flotation collector depressant |
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