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Characterization of Colloidal Solids from Athabasca Fine Tails

Published online by Cambridge University Press:  28 February 2024

L. S. Kotlyar ,
Y. Deslandes ,
B. D. Sparks ,
H. Kodama  and
R. Schutte
L. S. Kotlyar*
Affiliation:
National Research Council of Canada, Institute for Environmental Chemistry, M-12, Montreal Road, Ottawa, Ontario, Canada K1A OR9
Y. Deslandes
Affiliation:
National Research Council of Canada, Institute for Environmental Chemistry, M-12, Montreal Road, Ottawa, Ontario, Canada K1A OR9
B. D. Sparks
Affiliation:
National Research Council of Canada, Institute for Environmental Chemistry, M-12, Montreal Road, Ottawa, Ontario, Canada K1A OR9
H. Kodama
Affiliation:
Centre for Land and Biological Resources Research
R. Schutte
Affiliation:
Research Department of Syncrude Ltd.
*
2To whom correspondence should be addressed.
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Abstract

During processing of Athabasca oil sands, the finely divided solids form an aqueous suspension, which ultimately stabilizes as a gel-like structure retaining up to 90% of the process water. This gelling phenomenon is believed to be caused by colloidal inorganic components. Kaolinite and mica are the main crystalline minerals in these colloidal solids; swelling clays are present in only trace amounts. Non-crystalline components are more concentrated in the finer fraction of the solids. Although the surfaces of the colloidal solids are virtually free of Fe, some contamination with polar organic matter is observed.

Keywords

Fine tailsHydrophilicColloidal solids
Type
Research Article
Information
Clays and Clay Minerals , Volume 41 , Issue 3 , June 1993 , pp. 341 - 345
Copyright
Copyright © 1993, The Clay Minerals Society

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Footnotes

1

Issued as NRC #32959.

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