Patents Assigned to Director-General Seiichi Ishizaka of the Agency of Industrial Science and Technology
  • Method for effecting coal-liquefying reaction
    Patent number: 4251345
    Abstract: A method of liquefying coal by reaction in a slurry mixture with a solvent consisting of an organic heavy fraction, with the application of heat, is characterized in that the slurry-based reactants are mixed with light aliphatic compounds to make use of the latent and sensible heats of the latter in lowering the reactant temperature, whereby the coal-liquefying reaction and thermal polycondensation reaction of the organic heavy fraction are controlled.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: February 17, 1981
    Assignee: Director-General Seiichi Ishizaka of the Agency of Industrial Science and Technology
    Inventors: Tsugitoshi Ogura, Akio Hiraki, Hikokusu Kajimoto