Interfacial properties of natural magnetite particles compared with their synthetic analogue
文献类型：期刊论文
| 作者 | Potapova, E. ; Yang, X. ; Westerstrand, M. ; Grahn, M. ; Holmgren, A. ; Hedlund, J. |
| 刊名 | Engineering; Mineralogy; Mining & Mineral Processing
 |
| 出版日期 | 2012 |
| 卷号 | 36-38期号:1页码:187-194 |
| 关键词 | Flotation reagents Iron ores Particle size Surface modification |
| ISSN号 | 0892-6875 |
| 中文摘要 | Understanding of the interactions between iron oxides and flotation reagents is important both for flotation and agglomeration of iron ore. Model systems comprising synthetic iron oxides and pure chemical reagents are commonly applied in experimental work in order to obtain high quality data and to ease the interpretation of the empirical data. Whether the results obtained using model systems are valid for iron ore minerals and commercial reagents is a question seldom addressed in the literature. It is shown in this work that previously reported results obtained from a model system, concerning adsorption of a carboxylate surfactant and sodium metasilicate onto synthetic magnetite nanoparticles, as obtained by in situ ATR-FTIR spectroscopy and contact angle measurements, are applicable to adsorption of flotation reagents on magnetite concentrate. Additionally, the problem of restoring magnetite wetting after flotation is addressed since good wetting of a magnetite concentrate is required to produce iron ore pellets by wet agglomeration. The results from the present work indicate that the wettability of both synthetic magnetite coated with surfactant and magnetite concentrate after flotation can be improved by adsorbing a hydrophilizing agent such as silicate or polyacrylate. (C) 2012 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000311773100026 |
| 公开日期 | 2014-11-27 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8062]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Potapova, E.,Yang, X.,Westerstrand, M.,et al. Interfacial properties of natural magnetite particles compared with their synthetic analogue[J]. Engineering; Mineralogy; Mining & Mineral Processing,2012,36-38(1):187-194. |
| APA | Potapova, E.,Yang, X.,Westerstrand, M.,Grahn, M.,Holmgren, A.,&Hedlund, J..(2012).Interfacial properties of natural magnetite particles compared with their synthetic analogue.Engineering; Mineralogy; Mining & Mineral Processing,36-38(1),187-194. |
| MLA | Potapova, E.,et al."Interfacial properties of natural magnetite particles compared with their synthetic analogue".Engineering; Mineralogy; Mining & Mineral Processing 36-38.1(2012):187-194. |
入库方式： OAI收割
来源：生态环境研究中心
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