Patents by Inventor Robert F. Whitters

Robert F. Whitters 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).

  • Generation of sulphur trioxide from oleum
    Patent number: 4663142
    Abstract: A continuous process for the generation of sulphur trioxide from oleum suitable for use in the sulphonation of organic compounds which comprises continuously introducing oleum feed to a sulphur trioxide desorption tower; continuously introducing a recycled dry feed air stream to said desorption tower, whereby a gaseous mixture of sulphur trioxide in air is produced; collecting spent oleum from said desorption tower; introducing said gaseous mixture to a sulphonation reactor; and recycling spent gaseous mixture from said reactor to said desorption tower as said feed air stream. The process offers reduced environmental pollution and operating costs.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: May 5, 1987
    Assignee: C-I-L Inc.
    Inventors: Gordon M. Cameron, Robert F. Whitters