Flotation separation of rutile from almandine using octadecyl amine polyoxyethylene ether as collector
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School of Resource and Safety Engineering, Wuhan Institute of Technology
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College of Resource and Environmental Engineering, Wuhan University of Technology
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College of Resources, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
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Hubei Sanning Chemical co. LTD, Yichang, 443200, China
CORRESPONDING AUTHOR
Huifang Zheng   

School of Resource and Safety Engineering, Wuhan Institute of Technology
Publication date: 2020-06-13
 
Physicochem. Probl. Miner. Process. 2020;56(4):653–664
 
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ABSTRACT
In this study, the flotation separation of rutile from almandine using cationic surfactant Octadecyl amine polyoxyethylene ether (AC1815) as a new collector was investigated. The adsorption mechanism of AC1815 on rutile was illustrated through zeta potential measurement, infrared spectrum and XPS analyses. The flotation experiments demonstrated that AC1815 exhibited an excellent collecting ability and selectivity for rutile. The results of zeta potential measurements and XPS analysis indicated that more AC1815 was adsorbed on rutile surface instead of almandine. The adsorption mechanism of AC1815on rutile was mainly attributed to the electrostatic interaction between the positively charged molecules of AC1815 and the negatively charged rutile surface, and the hydrogen bonding between the protonated ≡NH+, ≡N group of AC1815 and Ti-OH on rutile surface.
eISSN:2084-4735
ISSN:1643-1049