期刊
CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2019
卷 -, 期 -, 页码 301-309出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-030-05749-7_30
关键词
Ilmenite; Collector; Recovery rate; Molecular dynamic simulation
资金
- National Science Fund of China [51704263]
- Innovative Talents Foundation inUniversities inHenan Province [18HASTIT011]
- Educational Commission of Henan Province of China [17A450001, 18A450001]
- China Postdoctoral Science Foundation [2017M622375]
Ilmenite is an important raw material for space industry, nautical engineering and medicine. In this study, the effects of pH were investigated by flotation tests. Molecular dynamics simulation, contact angles and Zeta potential measurements were proceeded to explore the flotation mechanism. The results demonstrated that the combination collector (sodium oleate: sodium dodecyl sulfate = 3:1) exhibited a better flotation performance and themaximum recovery increased to 83.18% at pH = 5 compared with single sodium oleate/sodium dodecyl sulfate. When sodium oleate was used as a collector, the maximum recovery reached 80% at pH = 5. Molecular dynamic simulations revealed that the adsorption energy of combined collector and sodium oleate are -366.94 kJ/mol, -317.5 kJ/mol, respectively. These results verify that the flotation performance of the combined collector is better than the single collector.
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