Patents by Inventor Rudolf Donth

Rudolf Donth 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).

  • Process for separating water from organic multiple component mixtures by distillation
    Patent number: 4229261
    Abstract: Water is separated by distillation from organic multiple component mixtures containing at least one component partly miscible with water. The component miscible with water is distilled azeotropically with the water contained in the mixture, the distillate is separated into water and a zeotrope forming agent and the latter is recycled to the distilling column. In the recycling process, one part of the azeotrope forming agent is conducted to the top of the column and the other part is fed into the column at the feed mixture inlet or at a location thereunder.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: October 21, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gunter Heck, Gunter Roscher, Rudolf Donth