| 捕收剂AY作用下不同粒级石英浮选动力学模型研究 |
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| 引用本文： | 侯波,张覃,李显波,叶军建,陈青.捕收剂AY作用下不同粒级石英浮选动力学模型研究[J].矿冶工程,2018,38(3):49-52. |
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| 作者姓名： | 侯波 张覃 李显波 叶军建 陈青 |
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| 作者单位： | 1.贵州大学 矿业学院, 贵州 贵阳 550025;
2.喀斯特地区优势矿产资源高效利用国家地方联合工程实验室, 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(51474078);
贵州省科学技术基金(黔科合JZ字[2014]2009号) |
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| 摘 要： | 通过单矿物浮选试验, 研究了pH=4.0时、阳离子捕收剂AY作用下不同粒级石英上浮率随浮选时间的变化规律, 并采用6种浮选动力学模型进行了拟合。结果表明, 石英粒度越细, 极限上浮率和浮选速率常数越小; 增大捕收剂AY浓度, 石英极限上浮率和浮选速率常数提高, 这与捕收剂吸附密度和颗粒与气泡碰撞、粘附概率有关。该石英的浮选过程符合一级动力学模型, 其拟合优度R2可达0.98以上。
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| 关 键 词： | 石英 浮选 捕收剂 粒度 浮选动力学 |
| 收稿时间： | 2017-12-17 |
Flotation Kinetic Models of Quartz with Different Particle Size in the Presence of Collector AY |
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| HOU Bo,ZHANG Qin,LI Xian-bo,YE Jun-jian,CHEN Qing.Flotation Kinetic Models of Quartz with Different Particle Size in the Presence of Collector AY[J].Mining and Metallurgical Engineering,2018,38(3):49-52. |
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| Authors: | HOU Bo ZHANG Qin LI Xian-bo YE Jun-jian CHEN Qing |
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| Affiliation: | 1.Mining College, Guizhou University, Guiyang 550025, Guizhou, China;
2.National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, Guizhou, China;
3.Guizhou Key Lab of Comprehensive Utilization of Non-metallic Mineral Resources, Guizhou University, Guiyang 550025, Guizhou, China |
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| Abstract: | The flotation rate of quartz with different size fractions was studied by single mineral flotation test using cationic collector AY, and the effect of flotation time on flotation efficiency was simulated with six flotation kinetics models. The results show that, the smaller the quartz particle size, the smaller the maximum floatation rate and the floatation rate constant. Both the maximum floatation rate and the floatation rate constant value increase along with an increase in the concentration of AY, which is related to the reagent adsorption density and the probability of particle collision and adhesion. The flotation process of the quartz is in accordance with the first order kinetic model with the goodness of fit R2 exceeding 0.98. |
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| Keywords: | quartz flotation collector granularity flotation kinetics |
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