Process for selective recovery of relatively metals-free bitumen from tar sand using a halogenated aliphatic solvent in combination with a second solvent

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Publication Type patent
Author Paraskos, John A.; Smith, Edward W.
Title Process for selective recovery of relatively metals-free bitumen from tar sand using a halogenated aliphatic solvent in combination with a second solvent
Date 1980-08-12
Description A process for the selective recovery of tar sand bitumen from tar sands using a two-solvent system comprising a halogenated aliphatic solvent in combination with a second solvent selected from an oxygenated compound. The process provides for an inexpensive method for selectively removing substantially metal-free tar sand bitumen from tar sands. The bitumen so recovered renders the same amenable to catalytic desulfurization and upgrading processes.
Publisher United States Patent and Trademark Office
Subject selective recovery of tar sand bitumen; tar sand bitumen; two-solvent system; patent; metal-free bitumen
Bibliographic Citation Paraskos, J. A., Smith, E. W. (1980). Process for selective recovery of relatively metals-free bitumen from tar sand using a halogenated aliphatic solvent in combination with a second solvent. United States Patent 4,217,202. United States Patent and Trademark Office.
Relation Has Part United States Patent 4,217,202
ARK ark:/87278/s6q26zb2
Setname ir_eua
Date Created 2015-01-28
Date Modified 2021-05-06
ID 214331
Reference URL https://collections.lib.utah.edu/ark:/87278/s6q26zb2
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