Recovery of bitumen from tar sand

Update item information
Publication Type patent
Author Estes, John H.; Buinicky, Ernest P.
Title Recovery of bitumen from tar sand
Date 1981-02-10
Description A process for recovering bitumen, or heavy petroleum, from admixture with sand and similar inorganic materials wherein said bitumen-sand mixture is mixed with an aqueous solution of an ammonium salt selected from ammonium sulfite, ammonium bisulfite and mixtures thereof to form a second mixture comprising said aqueous ammonium salt solution, bitumen and sand; wherein said second mixture is heated to a temperature in the range of about F. ( C.) to about F. ( C.) and is separated into a bitumen phase free of sand, an aqueous phase and a sand phase.
Publisher United States Patent and Trademark Office
Subject bitumen recovery; tar sand; patent
Bibliographic Citation Estes, J. H., Buinicky, E. P. (1981). Recovery of bitumen from tar sand. United States Patent 4,250,016. United States Patent and Trademark Office.
Relation Has Part United States Patent 4,250,016
ARK ark:/87278/s6f79bpg
Setname ir_eua
Date Created 2015-02-03
Date Modified 2021-05-06
ID 214395
Reference URL