Johannes Dühr

Title: Innovations of Johannes Dühr in Aromatic Nitro Compounds

Introduction

Johannes Dühr is a notable inventor based in Krefeld, Germany. He has made significant contributions to the field of chemistry, particularly in the production of aromatic nitro compounds. His innovative methods have implications for various industrial applications.

Latest Patents

Johannes Dühr holds a patent for a "Method for producing aromatic nitro compounds." This patent describes a reaction involving aromatic compounds with nitrating acids, such as HNO₃, and potentially H₂SO₄, H₂O, and/or H₃PO₄. The invention introduces the addition of 0.5 to 20,000 ppm of one or more surface-active substances from the group of anionic, cationic, zwitterionic, or nonionic surface-active substances to the reaction mixture. This method enhances the efficiency and effectiveness of producing aromatic nitro compounds.

Career Highlights

Dühr is associated with Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His work at Bayer has allowed him to focus on innovative chemical processes that contribute to the company's research and development efforts.

Collaborations

Throughout his career, Johannes Dühr has collaborated with esteemed colleagues, including Bernd-Michael König and Hans-Joachim Raatz. These collaborations have fostered a productive environment for innovation and advancement in their respective fields.

Conclusion

Johannes Dühr's contributions to the production of aromatic nitro compounds exemplify the importance of innovation in chemistry. His patent and work at Bayer highlight the potential for advancements in industrial applications.