Patents by Inventor Detlev Koth

Detlev Koth 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 production of activated carbon from lignite coke
    Patent number: 4603119
    Abstract: Activated carbon is produced from lignite coke. It is characterized by the product of the molasses number times the iodine number divided by 1000 being 350 to 1000 and/or the product of the molasses number times the methylene blue number divided by 10 being 500 to 1200. It is produced by adding aqueous alkali or alkaline earth carbonate solution and/or aqueous alkali or alkaline earth hydroxide solution by means of lance during the steam activation of lignite coke in a rotating tube.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: July 29, 1986
    Inventors: Alfons Karl, Erwin Walter, Peter Kleinschmit, Hermann Gottschlich, Roland Kutz, Detlev Koth
  • Process for the hydrophobization of pyrogenically produced silica
    Patent number: 4503092
    Abstract: Pyrogenically produced silica after separation of the hydrogen halide is mixed with nitrogen and conveyed into a cyclone. After separation of the gases, which are returned into the cooling stretch of the production apparatus, the silica is first mixed with organohalosilane and nitrogen and subsequently with steam and nitrogen. Subsequently the hydrophobization reaction is carried out in known manner in a fluidized bed reactor. The reaction waste gases are returned into the cyclone.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: March 5, 1985
    Assignee: Degussa Aktiengesellschaft
    Inventors: Hans Klebe, Detlev Koth, Dieter Kerner, Josef Schmid, Manfred Schmid
  • Process for the production of slugs of pyrogenically produced oxides
    Patent number: 4482642
    Abstract: Pressed objects (slugs) of pyrogenically produced oxides such as SiO.sub.2, Al.sub.2 O.sub.3 and TiO.sub.2 are produced using a silica sol and water. As molding assistants thereby there is employed a polyhydric alcohol, e.g. glycerine or sorbitol. The water can be added adsorbed on a pyrogenically produced hydrophobized silica. The pressed object obtained can be used inter alia as catalyst carrier.
    Type: Grant
    Filed: August 9, 1982
    Date of Patent: November 13, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Ettlinger, Horst Ferch, Detlev Koth, Edgar Simon