选钼回水中铝离子对辉钼矿可浮性的影响机制

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李慧1，何廷树1*，靳建平2，张崇辉1，王真1，袁航1

1. 西安建筑科技大学材料与矿资学院，陕西西安 710043；2. 西安西北有色地质研究院有限公司，陕西西安 710054

收稿日期:2017-10-09修回日期:2017-11-03出版日期:2018-06-22发布日期:2018-06-06
通讯作者:李慧

基金资助:国家自然科学基金青年项目

Influence Mechanism of Al3+ from Recycled Water of Mineral Processing on Floatability of Molybdenite

Hui LI1, Tingshu HE1*, Jianping JIN2, Chonghui ZHANG1, Zhen WANG1, Hang YUAN1

1. College of Material and Resource, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710043, China;2. Xi?an Northwest Geological Institute Company of Nonferrous Metals Co., Ltd., Xi?an, Shaanxi 710054, China

Received:2017-10-09Revised:2017-11-03Online:2018-06-22Published:2018-06-06

摘要/Abstract

摘要： 通过辉钼矿浮选实验、Zeta电位测试、Al3+溶液化学分析及X射线光电子能谱分析(XPS)，研究了选钼回水中的Al3+对辉钼矿可浮性的影响及其作用机制. 结果表明，铝离子会恶化辉钼矿的浮选指标，并导致其表面Zeta电位显著偏移，表明辉钼矿表面有Al3+吸附；Al3+在溶液中主要以铝离子、羟基铝离子、氢氧化铝沉淀形式存在，后两者具有极强的极性，能吸附在辉钼矿活泼的“棱”上，铝离子与辉钼矿“棱”氧化生成的MoO42?反应生成钼酸铝沉淀；由于辉钼矿“棱”的面积比“面”的面积小很多，而铝离子主要吸附在“棱”上，因此铝元素含量不多，但其确实能吸附在辉钼矿表面，且既有物理吸附也有化学吸附.

引用本文

李慧何廷树靳建平张崇辉王真袁航. 选钼回水中铝离子对辉钼矿可浮性的影响机制[J]. 过程工程学报, 2018, 18(3): 595-599.
Hui LI Tingshu HE Jianping JIN Chonghui ZHANG Zhen WANG Hang YUAN. Influence Mechanism of Al3+ from Recycled Water of Mineral Processing on Floatability of Molybdenite[J]. Chin. J. Process Eng., 2018, 18(3): 595-599.

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