Location History:
- Ludwigshafen, DE (1992)
- Maxdorf, DE (2002 - 2004)
Company Filing History:
Years Active: 1992-2004
Title: Herbert Wanjek: Innovator in Phthalic Anhydride Production
Introduction
Herbert Wanjek is a notable inventor based in Maxdorf, Germany. He has made significant contributions to the field of chemical engineering, particularly in the production of phthalic anhydride. With a total of four patents to his name, Wanjek's work has advanced the methods used in this important industrial process.
Latest Patents
Wanjek's latest patents focus on innovative methods for producing phthalic anhydride. One of his patents describes a method for producing phthalic anhydride through catalytic gas-phase oxidation of xylene and/or naphthalene. This process utilizes a gas comprising molecular oxygen in a fixed bed at elevated temperatures, employing at least three coated catalysts arranged in superposed zones. The catalysts are designed to have varying levels of activity, which enhances the efficiency of the production process.
Another patent outlines a method for producing phthalic anhydride by catalytic vapor-phase oxidation of o-xylene/naphthalene mixtures. This process involves a two-zone catalyst system, where the first zone comprises a specific composition of vanadium oxide, antimony oxide, and titanium dioxide, while the second zone has a different composition, ensuring optimal catalytic performance.
Career Highlights
Wanjek is currently associated with BASF Aktiengesellschaft, a leading chemical company known for its innovative solutions. His work at BASF has allowed him to apply his expertise in chemical processes and contribute to the company's advancements in phthalic anhydride production.
Collaborations
Throughout his career, Wanjek has collaborated with notable colleagues, including Thomas Heidemann and Andrea Frenzel. These collaborations have fostered a productive environment for innovation and development in their field.
Conclusion
Herbert Wanjek's contributions to the production of phthalic anhydride through innovative methods have established him as a key figure in chemical engineering. His patents reflect a commitment to advancing industrial processes, and his work continues to influence the field.