Patents by Inventor Alta Spamer

Alta Spamer 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).

  • Metathesis catalyst and process
    Publication number: 20060293548
    Abstract: The invention provides a method of preparing a metathesis catalyst, the method including the steps of mixing a transition metal oxide containing aqueous solution having a pH of 9 or higher with a carrier. The water is then removed from the mixture by means of evaporation to provide a metathesis catalyst.
    Type: Application
    Filed: August 14, 2003
    Publication date: December 28, 2006
    Inventors: Alta Spamer, Jan Botha, Chart Schalkwyk, Denzil Moodley, Thamsanga Dube
  • Production of propylene
    Patent number: 6586649
    Abstract: The invention provides a process for the production of propylene by butene metathesis. The process includes contacting a feedstock, which contains butene selected from 1-butene, 2-butene and mixtures thereof, with a catalyst which includes a catalytic amount of at least one metal oxide selected from oxides of the transition metals. The contacting is under reaction conditions which include a temperature of 300-600 øC. and a pressure of 1 20 atmospheres, and converts the butene to propylene, thereby to produce a reaction product containing propylene. C5— and higher hydrocarbons produced by the metathesis are separated from the reaction product and are recycled to the reaction where they are contacted with the catalyst.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: July 1, 2003
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Jan Mattheus Botha, Muzikayise Mthokozisi Justice Mbatha, Bongani Simon Nkosi, Alta Spamer, Joan Swart