Method of separating bitumen from tar sand with cold solvent

Update item information
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
Date Created 2015-01-14
Date Modified 2021-05-06
ID 214260
Reference URL
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