Rate of bitumen film transfer from a quartz surface to an air bubble as observed by optical microscopy
Document Type
Article
Publication Date
8-2004
Department
Department of Materials Science and Engineering
Abstract
The rate of bitumen transfer from a bitumen-coated quartz plate to a gas bubble surface in aqueous alkaline solutions was recorded photographically. During bitumen spreading, a bulk layer followed the formation of thin bitumen films (precursor films). The bulk layer spread at the bubble surface with a velocity of about one order of magnitude less than the velocity of the precursor film. The energy of activation for spreading of the bulk layer varied from about 66 to 123 kJ/mol depending on the stage of bitumen spreading but remained constant at about 105 kJ/mol for the precursor film. Results are discussed with respect to fundamental issues associated with flotation recovery of heavy oils.
Publication Title
Canadian Journal of Chemical Engineering
Recommended Citation
Lelinski, D.,
Drelich, J.,
Miller, J.,
&
Hupka, J.
(2004).
Rate of bitumen film transfer from a quartz surface to an air bubble as observed by optical microscopy.
Canadian Journal of Chemical Engineering,
82(4), 794-800.
http://doi.org/10.1002/cjce.5450820418
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3578