Patents by Inventor Drik Fridag

Drik Fridag 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).

  • Publication number: 20120136186
    Abstract: The invention relates to a method for producing low-odor n-butane by catalytic hydrogenation of a feed mixture. The aim of the invention is to provide such a method, wherein the feed material, in addition to n-butane, n-butene and up to 1 mass % formic acid and/or up to 1 mass % pentanals and/or up to 0.5 mass % pentanols, also comprises carbon monoxide. The aim is achieved by treating the feed mixture in the temperature range of 15 to 120° C. with an aqueous solution of an alkali metal or alkaline earth metal hydroxide in the concentration range of 0.5 to 30 mass % and subsequently subjecting the feed mixture to the catalytic hydrogenation.
    Type: Application
    Filed: May 21, 2010
    Publication date: May 31, 2012
    Applicant: EVONIK OXENO GMBH
    Inventors: Hans-Gerd Lueken, Alfred Kaizik, Markus Winterberg, Wilfried Büschken, Drik Fridag