Franz Föhles

Title: **Franz Föhles: Innovator in Double Metal Cyanide Catalysts**

Introduction

Franz Föhles is a notable inventor based in Tönisvorst, Germany, recognized for his contributions to the field of catalyst production. With two patents to his name, his work primarily focuses on enhancing the processes for producing double metal cyanide (DMC) catalysts used in the manufacturing of polyether polyols.

Latest Patents

Franz Föhles holds two significant patents related to the production of DMC catalysts. The first patent, titled "Method for producing double metal cyanide (DMC) catalysts," presents an improved process involving the reaction of aqueous solutions of a metal salt and a metal cyanide salt. This innovation incorporates organic complexing ligands to form a DMC catalyst dispersion, which is then filtered and washed to ensure purity. The filtered filter cake is subsequently dried, leading to enhanced catalyst efficiency in the production of polyether polyols.

The second patent, titled "Process for producing DMC catalysts," outlines an improved method that utilizes a mixing nozzle, specifically a jet disperser, in the production of DMC catalyst dispersions. This innovative approach yields catalysts with increased activity, reduced particle size, and a narrower particle size distribution, ultimately enhancing the manufacturing process for polyether polyols.

Career Highlights

Franz Föhles is associated with Bayer Aktiengesellschaft, a leading global company known for its contributions to science and technology. His work within the company underscores a commitment to advancing chemical processes and improving industrial applications.

Collaborations

Throughout his career, Franz has collaborated with esteemed colleagues such as Jörg Hofmann and Bernd Klinksiek. These partnerships have played a significant role in fostering innovation and furthering advancements in catalyst technology.

Conclusion

Franz Föhles stands as a prominent figure in the innovation landscape, particularly in the realm of double metal cyanide catalysts. His patented processes demonstrate a commitment to enhancing chemical manufacturing techniques, contributing valuable advancements to the production of polyether polyols. Through his work at Bayer Aktiengesellschaft and collaboration with fellow innovators, Föhles continues to impact the field significantly.