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Warianty tytułu
Języki publikacji
Abstrakty
Flotation separation of chalcopyrite from talc using carboxymethyl chitosan as a depressant was studied. Flotation tests indicated that carboxymethyl chitosan had a selective depression effect on talc and the use of carboxymethyl chitosan as the depressant could achieve flotation separation of chalcopyrite from talc at pH 7. Adsorption studies showed that carboxymethyl chitosan only adsorbed on the surface of talc. This was the reason why carboxymethyl chitosan had high depression selectivity for talc. The zeta potential measurements and XPS analysis indicated that carboxymethyl chitosan adsorbed on the talc surface mainly through physical interaction and hydrophobic interaction may be the main driving force.
Słowa kluczowe
Rocznik
Tom
Strony
1255--1263
Opis fizyczny
Bibliogr. 13 poz., rys., tab.
Twórcy
autor
- Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, China
autor
- Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou, China
autor
- Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, China
autor
- Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, China
Bibliografia
- BEATTIE, D.A., HUYNH, L., KAGGWA, G.B and RALSTON, J., 2006, Influence of adsorbed polysaccharides and polyacrylamides on talc flotation. Int. J. Miner. Process.,78, 238–249.
- BURDUKOVA, E., VAN LEERDAM, G. C., PRINS, F. E., SMEINK, R. G., BRADSHAW, D. J., LASKOWSKI, J. S., 2008, Effect of calcium ions on the adsorption of CMC onto the basal planes of New York talc–A ToF-SIMS study. Miner. Eng., 21(12): 1020-1025.
- HUANG P, CAO, M, LIU Q., 2012, Adsorption of chitosan on chalcopyrite and galena from aqueous suspensions. Colloids & Surfaces A, 2012, 409(17):167–175.
- HUANG P, CAO, M, LIU Q., 2012, Using chitosan as a selective depressant in the differential flotation of Cu–Pb sulfides. Int. J. Miner. Process., 106–109(6):8-15.
- KHRAISHEH, M., HOLLAND, C., CREANY, C., HARRIS, P and PAROLIS, L., 2005, Effect of molecular weight and concentration on the adsorption of CMC onto talc at different ionic strengths. Int. J. Miner. Process., 75, 197–206.
- KUMAR M N V R.,2000, A Review of Chitin and Chitosan Applications[J]. Reactive & Functional Polymers, 2000, 46(1):1-27.
- LASKOWSKI, J. S., LIU, Q., O'CONNOR, C. T. 2007, Current understanding of the mechanism of polysaccharide adsorption at the mineral/aqueous solution interface. Int. J. Miner. Process., 84(1), 59-68.
- MORRIS, G.E,.FORNASIERO, D and RALSTON, J., 2002, Polymer depressants at the talc–water interface adsorption isotherm, microflotation and electrokinetic studies. Int. J. Miner. Process., 67, 211-227.
- RATH, R. K., SUBRAMANIAN, S., LASKOWSKI, J. S., 1997, Adsorption of dextrin and guar gum onto talc. A comparative study. Langmuir, 13(23): 6260-6266.
- SHORTRIDGE, P.G., HARRIS, P.J., BRADSHAW, D.J and KOOPAL, L.K., 2000, The effect of chemical composition and molecular weight of polysaccharide depressants on the flotation of talc. Int J. Miner. Process., 59, 215-224.
- WANG, J., SOMASUNDARAN, P and NAGARAJ, D.R,. 2005, Adsorption mechanism of guar gum at solid–liquid interfaces. Miner. Eng., 18, 77–81.
- XIANG, Y., Carboxymethyl Chitosan as a Selective Depressant in Differential Flotation of Galena and Chalcopyrite. University of Alberta, 2015.
- YUE, L., ZHANG, L., ZHONG, H., 2014, Carboxymethyl chitosan: A new water soluble binder for Si anode of Li-ion batteries. J. Power Sources, 247: 327-331.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-013d4fec-0dba-4628-ad10-8727d719d371