Flotation behaviour and surface characteristic of anosovite in a sodium oleate solution
1
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology
2
Institute of Mineral Resource Comprehensive Utilization, Chinese Academy of Geological Sciences
3
Faculty of Foreign Languages and Cultures, Kunming University of Science and Technology
Publication date: 2017-01-15
Corresponding author
Yijie Wang
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, No.68 Wenchang Rd., Wuhua District, Kunming, China, [email protected] Kunming, China
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, No.68 Wenchang Rd., Wuhua District, Kunming, China, [email protected] Kunming, China
Physicochem. Probl. Miner. Process. 2017;53(2):714-723
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ABSTRACT
Properties of anosovite in titanium slag, anosovite flotation response in a collector solution of sodium oleate, and adsorption behaviour of sodium oleate on the mineral surface were studied in the present work using XRD, Raman spectra, flotation tests, zeta potential analysis, FTIR and XPS. The results show that the anosovite crystal contains magnesium, and its chemical composition is Mg0.09Ti2.91O5. The chemical bonds on the anosovite surface mainly comprise Ti-O bonds. Micro-flotation tests indicate that anosovite has better floatability at a wide pH range and the recovery reaches 88% at pH=6, when the dosage of sodium oleate is only 4·10−6 mol/dm3. The point of zero charge of anosovite was determined near pH 3.2 by the zeta potential measurement. In the flotation process, chemical adsorption occurs between the carboxyl of sodium oleate and the titanium sites on the anosovite surface.
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| eISSN: | 2084-4735 |
| ISSN: | 1643-1049 |
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