Patents by Inventor Franciscus Hermanus Bolder

Franciscus Hermanus Bolder 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).

  • Esterification catalyst and process for the esterification of acids in a hydrocarbons containing feed
    Publication number: 20060258880
    Abstract: An esterification catalyst and process for the reduction of acids in a hydrocarbon containing composition, said process including contacting the hydrocarbon containing composition with an esterification catalyst at esterfication temperature and pressure. The esterification catalyst includes metal oxides which include one or more oxides selected from molybdenum oxide, tungsten oxide and transition metal oxides in group Ib to VIIIb.
    Type: Application
    Filed: January 22, 2004
    Publication date: November 16, 2006
    Inventor: Franciscus Hermanus Bolder
  • Catalysts
    Patent number: 5733839
    Abstract: To prepare a Fischer-Tropsch catalyst, a slurry comprising a particular alumina carrier, water and an active component selected from the group consisting in cobalt (Co), iron (Fe) and mixtures thereof, is subjected to a sub-atmospheric pressure environment. The alumina carrier is thereby impregnated by the active component. The impregnated carrier is dried under a sub-atmospheric pressure environment. The dried impregnated carrier is calcined, thereby to obtain the Fischer-Tropsch catalyst.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: March 31, 1998
    Assignee: Sastech (Proprietary) Limited
    Inventors: Rafael Luis Espinoza, Jacobus Lucas Visagie, Peter Jacobus Van Berge, Franciscus Hermanus Bolder