Flotation separation of chalcopyrite from talc using carboxymethyl chitosan as depressant
,
 
,
 
,
 
 
 
 
More details
Hide details
1
Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, China
 
2
Jiangxi University of Science and Technology
 
 
Publication date: 2017-05-24
 
 
Corresponding author
Bo Feng   

Jiangxi University of Science and Technology, School of Resource and Environment Engineering, Jiangxi University of Science and Technology, Ganzho, 341000 Ganzhou, China
 
 
Physicochem. Probl. Miner. Process. 2017;53(2):1255-1263
 
KEYWORDS
TOPICS
ABSTRACT
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.
 
REFERENCES (13)
1.
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.
 
2.
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.
 
3.
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.
 
4.
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.
 
5.
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.
 
6.
KUMAR M N V R.,2000, A Review of Chitin and Chitosan Applications[J]. Reactive & Functional Polymers, 2000, 46(1):1-27.
 
7.
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.
 
8.
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.
 
9.
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.
 
10.
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.
 
11.
WANG, J., SOMASUNDARAN, P and NAGARAJ, D.R,. 2005, Adsorption mechanism of guar gum at solid–liquid interfaces. Miner. Eng., 18, 77–81.
 
12.
XIANG, Y., Carboxymethyl Chitosan as a Selective Depressant in Differential Flotation of Galena and Chalcopyrite. University of Alberta, 2015.
 
13.
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.
 
eISSN:2084-4735
ISSN:1643-1049
Journals System - logo
Scroll to top