| Publication Type |
patent |
| Research Institute |
Institute for Clean and Secure Energy (ICSE) |
| Author |
Park, Jack H.; Allen, Joseph C. |
| Title |
Method of separating bitumen from tar sand with cold solvent |
| Date |
1976-11-23 |
| Description |
A method for separating bitumen from tar sand by solvent extraction with efficient separation of water from the recovered bitumen is disclosed. Tar sand may often be recovered by surface mining techniques. The tar sand is comprised of bitumen, water and sand including clays. The tar sand is contacted with bitumen solvent having a freezing point below that of the water, and the temperature of the mixture is lowered below the freezing point of the water in the tar sand. The solid ice crystals may then be easily removed along with the sand leaving a water-free liquid bitumen solvent mixture. |
| Type |
Text |
| Publisher |
United States Patent and Trademark Office |
| Subject |
Bitumen; Tar sand; Separation; Solvent extraction; Cold solvent |
| Language |
eng |
| Bibliographic Citation |
Park, J. H., & Allen, J. C. (1976). U.S. Patent No. 3,993,555. Washington, DC: U.S. Patent and Trademark Office. |
| Rights Management |
(c) Jack H. Park, Joseph C. Allen |
| Format Medium |
application/pdf |
| ARK |
ark:/87278/s6003176 |
| Setname |
ir_eua |
| ID |
214260 |
| Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6003176 |
