Patents by Inventor Peter-M. Beier

Peter-M. Beier 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 the treatment of langbeinite and anhydrite containing kieserite concentrates
    Patent number: 5562755
    Abstract: A process for after-purifying a kieserite mixture pre-concentrated electrostatically across a number of stages is characterized in that the outside air used in the after purification stage is adjusted by dehumidification in a conventional dehumidification plant to an absolute moisture of 4.5 g/m.sup.3, and the kieserite mixture to be separated by triboelectrically charging with said air at a temperature of below 40.degree. C.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: October 8, 1996
    Assignee: Kali und Salz Beteiligungs AG
    Inventors: G unter Fricke, Ingo Stahl, Peter-M. Beier