| Publication Type |
patent |
| Author |
Hanson, Donald O.; Sherk, Fred T. |
| Title |
Solvent extraction of tar sand |
| Date |
1979-02-13 |
| Description |
An extraction process for recovering bitumens from tar sands in which the tar sand is mixed with a hot hydrocarbon solvent, for example, toluene, in order to evaporate substantially all the water contained in the tar sands. The tar sands-solvent mixture is then separated into two phases of fine and coarse sand. Two centrifuging steps are then used to recover the bitumen from the fine sand phase. |
| Publisher |
United States Patent and Trademark Office |
| Subject |
solvent extraction process; tar sand; bitumen recovery |
| Bibliographic Citation |
Hanson, D. O., Sherk, F. T. (1979). Solvent extraction of tar sand. United States Patent 4,139,450. United States Patent and Trademark Office. |
| Relation Has Part |
United States Patent 4,139,450 |
| ARK |
ark:/87278/s63n52kb |
| Setname |
ir_eua |
| ID |
214444 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s63n52kb |
