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

Process for removal of sulfur and ash from coal

Patent ·
OSTI ID:6213208
A process for reducing the sulfur and ash content of coal comprising: treating coal particles in a hydrocarbon oil slurry with minor amounts of a conditioning agent and water to effect agglomeration of ash and pyritic sulfur mineral matter; separating the agglomerates from the slurried coal particles; and recovering coal particles from the hydrocarbon oil.
Assignee:
Atlantic Richfield Co
Patent Number(s):
US 4255156
OSTI ID:
6213208
Country of Publication:
United States
Language:
English