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In this study, hydroxypropyltrimethyl ammonium chloride chitosan (HACC) was first introduced as a depressant during separating chalcopyrite from molybdenite (Cu-Mo). The selective effects of HACC on the separation of Cu-Mo were conducted by single-mineral flotation experiments. The findings from this study revealed that HACC helped separate Cu and Mo efficiently at pH 6 with 8 mg/dm3 of HACC, resulting in 76.22% and 5.38% of Mo and Cu flotation recovery, respectively. The adsorption mechanism of HACC was investigated via zeta potential, adsorption density, and contact angle measurement along with FT-IR and XPS analyses. The contact angle and adsorption density measurements offer indisputable proof that HACC can adsorb on the surface of chalcopyrite. Furthermore, FT-IR and XPS analyses confirm that N atoms in quaternary ammonium groups of HACC interact with Cu sites on the surface of chalcopyrite. The findings also suggest that HACC adsorbs on the surface without significantly impacting molybdenite. All these results confirm that HACC can be an effective chalcopyrite depressant.
Słowa kluczowe
Rocznik
Tom
Strony
art. no. 172481
Opis fizyczny
Bibliogr. 33 poz., tab., wykr.
Twórcy
autor
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
- School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China
autor
- School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China
autor
- School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China
autor
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming 650093, China
Bibliografia
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- ANSARI, A., PAWLIK, M., 2007. Floatability of chalcopyrite and molybdenite in the presence of lignosulfonates. Part II. Hallimond tube flotation. Minerals Engineering, 20, 609–616.
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- CAI, J., DANG, Q., LIU C., WANG, T., FAN, B., YAN, J., XU, Y., 2015. Preparation, characterization and antibacterial activity of O-acetyl-chitosan-N-2-hydroxypropyl trimethyl ammonium chloride. International Journal of Biological Macromolecules, 80: 8-15.
- CHEN, Y., CHEN, X., PENG, Y., 2020. The effect of sodium hydrosulfide on molybdenite flotation as a depressant of copper sulfides. Minerals Engineering, 148, 106203.
- CHEN, X., LIU, W., WANG, L., LIU, W., SUN, W., ZHANG, N., 2023. A novel depressant N,N-bis(phosphonomethyl)glycine for magnesite-dolomite separation and its mechanism. Minerals Engineering, 202, 108281.
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- GUAN, C., YIN, Z., KHOSO, S., SUN, W., HU, Y., 2018. Performance analysis of thiocarbonohydrazide as a novel selective depressant for chalcopyrite in molybdenite-chalcopyrite separation. Multidisciplinary Digital Publishing Institute, 8, 142.
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- LIU, J., TIAN Y., AN X., LI, G., KANG, Y., 2015. Flocculation performance and mechanism of removing pectin by n-hydroxypropyl trimethyl ammonium chloride chitosan. Journal of Dispersion Science & Technology, 36(11), 1612-1620.
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- YUAN, D., CADIEN, K., LIU, Q., ZENG, H., 2019. Selective separation of copper-molybdenum sulfides using humic acids. Minerals Engineering, 133, 43–46.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-2e146c4f-549f-46de-845b-e5e1af2ce528