Biwetted ultrafine solids and structure formation in oil sands fine tailings

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DOIResolve DOI: http://doi.org/10.1016/0016-2361(95)00064-C
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TypeArticle
Journal titleFuel
Volume74
Issue8
Pages11461149; # of pages: 4
SubjectOil sand tailings; Biwette solids; Gel formation
AbstractA high water holding capacity of oil sands fine tailing has been attributed to the presence of ultrafine (<0.2 μm) clay fractions. On the basis of hydrophobic character two major types of ultrafines are recognized: biwetted, associated with a significant coverage or organic matter and preferentially hydrophilic solids. The effect of biwetted solids on the colloidal stability of ultrafine clays in aqueous suspensions has been studied by dynamic light scattering and ²H n.m.r. methods. The organic matter associates with the surfaces of the biwetted solids is believed to be responsible for their accelerating effect on aggregation. The results indicate that prevention, or reduction, of the amount of biwetted solids entering the tailings pond could be beneficial.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Chemical Process and Environmental Technology
Peer reviewedYes
NRC number51980
NPARC number14411939
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Record identifiera0a1a41c-1e5b-41a9-bc0d-0110c814b871
Record created2010-03-01
Record modified2016-05-09
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