Patents by Inventor Johannes Petrus Verduijn

Johannes Petrus Verduijn 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).

  • Alkene oligomerization
    Patent number: 5672800
    Abstract: In a process for the oligomerization of C.sub.2 -C.sub.12 -alkenes, an alkene-containing feedstock having a water content of from 0.05 to 0.25 molar %, based on the hydrocarbon content of the feedstock, is passed over a zeolite catalyst. Improved alkene conversion and catalyst life are obtained compared to processes in which non-hydrated feedstocks are used.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: September 30, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Georges Marie Karel Mathys, Luc Roger Marc Martens, Marleen Augusta Baes, Johannes Petrus Verduijn, Diane Renata Cornelia Huybrechts
  • Process for producing substantially binder-free zeolite
    Patent number: 5665325
    Abstract: Silica-bound extruded zeolites may be converted into binder-free zeolite aggregates by aging the zeolite in an aqueous ionic solution which contains hydroxy ions such that the initial molar ratio of OH.sup.- :SiO.sub.2 is up to 1.2 and which causes the silica binder to be converted substantially to zeolite of the type initially bound. Such extrudates have excellent mechanical strength and show advantageous properties such as adsorption comparable with non-extruded zeolite powder.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: September 9, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Johannes Petrus Verduijn