Patents Assigned to B.D.F. Ltd.
  • Coal extraction and fuel additive made therefrom
    Patent number: 4089658
    Abstract: A process for extracting coal is provided which includes contracting coal with an admixture of water, an organic solvent, and carbon tetrachloride, and separating the organic solvent containing the coal extract. The coal extract is useful as a gasoline additive.
    Type: Grant
    Filed: September 8, 1976
    Date of Patent: May 16, 1978
    Assignee: B.D.F. Ltd.
    Inventor: Eugene Howard Bay