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 |
ID |
214117 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6q84c6j |