Patents by Inventor Nick Vasilakos

Nick Vasilakos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coal desulfurization by aqueous chlorination
    Patent number: 4325707
    Abstract: A method of desulfurizing coal is described in which chlorine gas is bubbled through an aqueous slurry of coal at low temperature below 130 degrees C., and at ambient pressure. Chlorinolysis converts both inorganic and organic sulfur components of coal into water soluble compounds which enter the aqueous suspending media. The media is separated after chlorinolysis and the coal dechlorinated at a temperature of from 300 degrees C. to 500 degrees C. to form a non-caking, low-sulfur coal product.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: April 20, 1982
    Assignee: California Institute of Technology
    Inventors: John J. Kalvinskas, Nick Vasilakos, William H. Corcoran, Karel Grohmann, Naresh K. Rohatgi