| 摘要 |
A method and apparatus for solvent extraction of bitumen oils from tar-sands and their separation into synthetic crude oil and synthetic fuel oil comprising the operations of mixing the tar-sands with hot water so as to form a slurry in conjunction with solvent, separating that slurry into the solvent and dissolved bitumen oils and the solid materials of the tar-sands, separating the bitumen oils from the solvent, contacting the bitumen oils thus obtained with an extractant in order to separating them into synthetic crude oil and synthetic fuel oil, recovering an reusing again within the process the solvent, the water and the extractant.
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