Patents by Inventor Luc F. L. N. Delorme

Luc F. L. N. Delorme 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).

  • Methods for separating hydrocarbons by liquid extraction
    Patent number: 4421640
    Abstract: Aromatic hydrocarbons are separated from a mixture thereof with paraffinic hydrocarbons by solvent extraction with N-(2-hydroxyethyl)-2-pyrrolidone containing a minor amount of water at specified elevated temperatures and pressures. Temperature variations within the specified range have little effect on the loading capacity and selectivity of the solvent thus greatly simplifying process control.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: December 20, 1983
    Assignee: Cosden Technology, Inc.
    Inventors: James M. Watson, Jacques F. J. Grootjans, Luc F. L. N. Delorme