Method for controlling flocculant addition to tar sand tailings

Update item information
Publication Type patent
Research Institute Institute for Clean and Secure Energy (ICSE)
Author Fuhr, Bryan J.; Liu, Joseph K.
Title Method for controlling flocculant addition to tar sand tailings
Date 1981-07-04
Description The hot water extraction process for recovering bitumen from tar sand produces a large volume of solids-laden aqueous tailings as a waste product. The solids in the tailings stream may be flocculated by the addition of time and the components of the stream then separated into a water-free solids phase and a clarified water phase. During flocculation, the zeta potential of the stream is monitored. It rises from an initial negative zeta potential, as the lime is added. Flocculation is terminated when the zeta potential is about zero. At this point, the tailings are in optimum condition for separation into the water-free solids phase and the clarified water phase. Separation is preferably effected by vacuum filtration.
Type Text
Publisher United States Patent and Trademark Office
Subject flocculant addition to tar sand tailings; tar sand tailings; hot water extraction process; bitumen recovery; flocculation; vacuum filteration
Language eng
Bibliographic Citation Fuhr, B. J., & Liu, J. K. (1981). Method for controlling flocculant addition to tar sand tailings. United States Patent and Trademark Office. United States Patent 4,282,103.
Relation Has Part United States Patent 4,282,103.
Rights Management (c)United States Patent and Trademark Office
Format Medium application/pdf
Format Extent 38,643 bytes
Identifier ir-eua/id/3059
Source DSpace at ICSE
ARK ark:/87278/s6q84c6j
Setname ir_eua
Date Created 2013-05-15
Date Modified 2021-05-06
ID 214117
Reference URL https://collections.lib.utah.edu/ark:/87278/s6q84c6j
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