Publication Type |
patent |
Author |
Porteous, Kenneth; Lavender, William |
Title |
Process for secondary recovery of bitumen in hot water extraction of tar sand |
Date |
1979-10-23 |
Description |
It has been found that tank-type air flotation cells are more efficient, when treating hot water process middlings containing in excess of about 3% bitumen, than trough-type air flotation cells. Also, it has been found that the trough-type cells are more efficient than the tank-type cells when treating middlings containing less than about 3% bitumen. Thus a secondary recovery circuit is proposed wherein the middlings are first treated in one or more tank-type cells in series and the underflow from the last tank-type cell is treated in one or more banks of trough-type cells. |
Publisher |
United States Patent and Trademark Office |
Subject |
patent; hot water process treatment; secondary recovery of bitumen; tar sand extraction |
Bibliographic Citation |
Porteous, K., Lavender, W. (1979). Process for secondary recovery of bitumen in hot water extraction of tar sand. United States Patent 4,172,025. United States Patent and Trademark Office. |
Relation Has Part |
United States Patent 4,172,025 |
ARK |
ark:/87278/s63b8z9j |
Setname |
ir_eua |
ID |
214328 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s63b8z9j |