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Chemical-enhanced filtration of Cu/Ni concentrate Open Access


Other title
Final moisture content
Particle size
Surface hydrophobicity
Mineral concentrate
Filtration performance
Filtration rate
Filtration aids
Type of item
Degree grantor
University of Alberta
Author or creator
Zheng, Haijun
Supervisor and department
Xu, Zhenghe (Chemical and Materials Engineering)
Examining committee member and department
Gupta, Rajender (Chemical and Materials Engineering)
Yu,Tong (Civil and Environmental Engineering)
Liu, Qingxia (Chemical and Materials Engineering) (Chair)
Department of Chemical and Materials Engineering

Date accepted
Graduation date
Master of Science
Degree level
Filtration performance of mineral concentrate is mainly controlled by solid particle size and surface hydrophobicity. Filtration of coarser particles with more hydrophobic surfaces produces better filtration performance characterized by higher filtration rate (U) and lower final moisture content (FMC) in the final cake. Some filtration aids could improve filtration performance by flocculating solid particles and enhancing surface hydrophobicity. For the mineral concentrate used in this study, many filtration aids tested could only improve either U or FMC: one type was effective in improving U, and another type was effective in improving FMC. The combination of the two types of filtration aids at certain dosages could achieve better filtration performance than the optimum performance achieved by each individual filtration aid. Based on the experimental results, the working mechanism of filtration aids behind the filtration behavior was explored to deepen the understanding of the chemical-enhanced filtration of Cu/Ni concentrate.
License granted by Haijun Zheng ( on 2009-11-21T23:30:47Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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