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

Iron-containing refractory balls for retorting oil shale

Patent ·
OSTI ID:5849937
Iron-containing refractory balls, in a retorting process for oil shale, permit effective magnetic separation of the balls from the spent shale. 10 claims.
Assignee:
Phillips Petroleum Co.
Patent Number(s):
US 4160719
OSTI ID:
5849937
Country of Publication:
United States
Language:
English