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

Method for fluorinating coal

Patent ·
OSTI ID:863009

Coal is fluorinated by contact with fluorine gas at low pressure. After pial fluorination, when the reaction rate has slowed, the pressure is slowly increased until fluorination is complete, forming a solid fluorinated coal of approximate composition CF.sub.1.55 H.sub.0.15. The fluorinated coal and a solid distillate resulting from vacuum pyrolysis of the fluorinated coal are useful as an internal standard for mass spectrometric unit mass assignments from about 100 to over 1500.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Number(s):
US 4073624
OSTI ID:
863009
Country of Publication:
United States
Language:
English