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

Hydrocarbon recovery from diatomite

Patent ·
OSTI ID:6606427

Supercritical extraction of diatomaceous earth results in a much more significant improvement in hydrocarbon recovery over Fischer retorting than achievable with tar sands. Process and apparatus for supercritical extraction of diatomaceous earth are disclosed.

Assignee:
Phillips Petroleum Company
Patent Number(s):
US 4448669
OSTI ID:
6606427
Country of Publication:
United States
Language:
English