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Title: Bitumen recovery from tar sands

Abstract

A process for recovering bitumen from tar sands wherein the tar sands are pretreated with a diluent, such as kerosene in the preferred embodiment, to lower the viscosity of the bitumen such that it is in the range of about 5 to about 20 poise at the digestion temperature. The tar sands are then digested at a temperature in the range of about 45/sup 0/ C. to about 60/sup 0/ C. and at a pH of about 7.8 to about 8.6. The tar sands are then transferred to a flotation cell where the bitumen-rich concentrate is separated from the sand.

Inventors:
;
Publication Date:
OSTI Identifier:
6320010
Patent Number(s):
US 4470899
Assignee:
University of Utah
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 14 Feb 1983; Other Information: PAT-APPL-466282
Country of Publication:
United States
Language:
English
Subject:
04 OIL SHALES AND TAR SANDS; BITUMENS; PRODUCTION; OIL SANDS; DILUTION; FLOTATION; HOT-WATER PROCESSES; KEROSENE; MEDIUM TEMPERATURE; PH VALUE; REMOVAL; TEMPERATURE EFFECTS; VISCOSITY; BITUMINOUS MATERIALS; CARBONACEOUS MATERIALS; ENERGY SOURCES; FLUID INJECTION PROCESSES; FOSSIL FUELS; FUELS; LIQUID FUELS; MATERIALS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; PETROLEUM PRODUCTS; SEPARATION PROCESSES; TAR; 040402* - Oil Shales & Tar Sands- Surface Methods

Citation Formats

Miller, J D, and Hupka, J. Bitumen recovery from tar sands. United States: N. p., 1984. Web.
Miller, J D, & Hupka, J. Bitumen recovery from tar sands. United States.
Miller, J D, and Hupka, J. 1984. "Bitumen recovery from tar sands". United States.
@article{osti_6320010,
title = {Bitumen recovery from tar sands},
author = {Miller, J D and Hupka, J},
abstractNote = {A process for recovering bitumen from tar sands wherein the tar sands are pretreated with a diluent, such as kerosene in the preferred embodiment, to lower the viscosity of the bitumen such that it is in the range of about 5 to about 20 poise at the digestion temperature. The tar sands are then digested at a temperature in the range of about 45/sup 0/ C. to about 60/sup 0/ C. and at a pH of about 7.8 to about 8.6. The tar sands are then transferred to a flotation cell where the bitumen-rich concentrate is separated from the sand.},
doi = {},
url = {https://www.osti.gov/biblio/6320010}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 11 00:00:00 EDT 1984},
month = {Tue Sep 11 00:00:00 EDT 1984}
}