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Method of separating bitumen from tar sand with cold solvent | 1976-11-23 | Bitumen; Tar sand; Separation; Solvent extraction; Cold solvent | 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 contacte... |
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