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Interaction between Bitumen and Fines in Oil Sands Extraction System: Implication to Bitumen Recovery
Author(s) -
Liu Jianjun,
Xu Zhenghe,
Masliyah Jacob
Publication year - 2004
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450820404
Subject(s) - asphalt , oil sands , zeta potential , atomic force microscopy , extraction (chemistry) , asphaltene , divalent , chemical engineering , chemistry , mineralogy , materials science , composite material , metallurgy , chromatography , nanotechnology , organic chemistry , engineering , nanoparticle
Colloidal interactions between bitumen and fines, extracted directly from oil sand ores, were investigated with zeta potential distribution measurement and surface force measurement using an atomic force microscope (AFM). Fines from good processing ores exhibit a negligible attachment to bitumen surfaces, due to hydrophilic nature of the fines. Fines from poor processing ores exhibit a stronger attachment to bitumen surfaces by an attractive hydrophobic force between bitumen and fines, due to hydrophobic nature of the fines and the presence of high concentration divalent cations in the processing water.