| Effects of impeller speed and aeration rate on flotation performance of sulphide ore |
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| 作者姓名： | 杨小生 ALDRICH Chris |
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| 作者单位： | Institute of Mineral Engineering Northeastern University Shenyang 110004 China，Department of Process Engineering University of Stellenbosch Private Bag X1 Matieland Stellenbos ch 7602 South Africa |
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| 基金项目： | Foundation item： Project supported by Postdoctoral Fellowship of South Africa |
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| 摘 要： | 1 Introduction Aeration rate and impeller speed are important operational variables in flotation and controlling of them is significant for improving the flotation performance. LAPLANTE et al1, 2] studied the effect of aeration rate on the flotation rate…
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| 关 键 词： | 水回收 固体夹带 浮选性能 叶轮速度 通风速率 硫化矿 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-07-05 |
Effects of impeller speed and aeration rate on flotation performance of sulphide ore |
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| Xiao-sheng YANG,Chris ALDRICH.Effects of impeller speed and aeration rate on flotation performance of sulphide ore[J].Transactions of Nonferrous Metals Society of China,2006,16(1):185-190. |
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| Authors: | Xiao-sheng YANG Chris ALDRICH |
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| Affiliation: | aInstitute of Mineral Engineering, Northeastern University, Shenyang 110004, China;bDepartment of Process Engineering, University of Stellenbosch, Private Bag XI, Matieland, Stellenbosch 7602, South Africa |
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| Abstract: | The effects of aeration rate and impeller speed on the concentrate sulfur grade and recovery for batch flotation of a complex sulphide ore were investigated. The relationships between the water recovery and solid entrainment were discussed. It is found that the solid entrainment is linearly related to the water recovery regardless of aeration rate and impeller speed, and the higher sulfur recovery at the aeration rate of 2 and 4 L/min for the impeller speed of 1 500 r/min is considered to be the contribution of true flotation. Finally, the sulfur recovery flux is correlated with the bubble surface area flux based on the froth image at the different aeration rates and impeller speeds. |
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| Keywords: | impeller speed aeration rate water recovery solid entrainment |
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