| Publication Type |
patent |
| Author |
Hsieh, C. Richard; Clifford, Roger K. |
| Title |
Solvent extraction process for recovering bitumen from tar sand |
| Date |
1987-06-30 |
| Description |
Bitumen recovered from tar sand by direct solvent extraction followed by washing of the sand tailings with countercurrent solvent flow and a solvent/aqueous phase separation step to recover solvent and residual bitumen. |
| Publisher |
United States Patent and Trademark Office |
| Subject |
solvent extraction process; bitumen recovery; tar sand; patent; direct solvent extraction; solvent bitumen recovery; residual bitumen |
| Bibliographic Citation |
Hsieh, C. R., Clifford, R. K. (1987). Solvent extraction process for recovering bitumen from tar sand. United States Patent 4,676,889. United States Patent and Trademark Office. |
| Relation Has Part |
United States Patent 4,676,889 |
| ARK |
ark:/87278/s6pg4qvz |
| Setname |
ir_eua |
| ID |
214451 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6pg4qvz |
