Joachim Ritzer

Title: Innovations of Joachim Ritzer

Introduction

Joachim Ritzer is a notable inventor based in Rodenbach, Germany. He has made significant contributions to the field of chemistry, particularly in the area of catalytic processes. With a total of three patents to his name, Ritzer's work has advanced the understanding and application of hydrogenation methods.

Latest Patents

Ritzer's latest patents include a method for hydrogenating nitroaromatic systems with selected platinum catalysts. This innovative method describes the catalytic hydrogenation of aromatic nitro compounds with hydrogen to produce corresponding amines in the presence of a modified supported catalyst comprising platinum. The catalyst is enhanced with a tungsten compound and a phosphorus compound in an oxidation state of less than five, allowing for high yields and selectivities. Another significant patent is for a method of preparing cyclic ketones. This method involves hydrogenating optionally substituted phenols with one hydroxyl group to cyclohexanones over modified, palladium-comprising supported catalysts. Remarkably, this process can be conducted in selected alcoholic solvents with high selectivity, and it allows for the recycling of the catalysts used, which has traditionally resulted in considerable loss of selectivity.

Career Highlights

Throughout his career, Ritzer has worked with prominent companies such as Allessa GmbH and Clariant Corporation. His experience in these organizations has contributed to his expertise in chemical processes and patent development.

Collaborations

Ritzer has collaborated with notable colleagues, including Doris Neumann and Gunther Effenberger. These partnerships have likely enriched his research and innovation efforts.

Conclusion

Joachim Ritzer's contributions to the field of chemistry through his patents and collaborations highlight his role as an influential inventor. His innovative methods in hydrogenation processes continue to impact the industry positively.