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U.S. Department of Energy
Office of Scientific and Technical Information

Process for beneficiating oil-shale

Patent ·
OSTI ID:5725239
Disclosed is a process for removing mineral matter from oil-shale which method comprises contacting the oil-shale with (a) an ammonium salt solution, and (b) a nonionic surfactant at a temperature from about 0/sup 0/ C. to about 300/sup 0/ C. for a time which is sufficient to substantially separate at least about 80 wt. % of the carbonate mineral matter of the oil-shale.
Assignee:
Exxon Research and Engineering Co.
Patent Number(s):
US 4491514
OSTI ID:
5725239
Country of Publication:
United States
Language:
English