Daniel W Marsh

Title: The Innovative Contributions of Daniel W. Marsh

Introduction

Daniel W. Marsh is a notable inventor based in Naperville, IL (US). He has made significant contributions to the field of chemical engineering, particularly in catalyst recovery methods. With a total of 2 patents, his work has advanced the processes involved in the production of aromatic carboxylic acids.

Latest Patents

One of his latest patents is a catalyst-recovery method for catalysts used in a continuous liquid phase oxidation process of an aromatic alkyl to an aromatic carboxylic acid product. This innovative method involves withdrawing the aromatic carboxylic acid product from an oxidation reactor as an aqueous product, which is then subjected to crystallization. The process separates the product mother liquor stream into a solvent-rich stream and a solids-containing catalyst-rich stream. The catalyst-rich stream is further processed to yield a by-product cake and a catalyst-bearing stream that is substantially free of solids. A portion of this catalyst-bearing stream is contacted with the vapor stream in the absorber system, leading to the withdrawal of a catalyst-rich bottoms stream, which is partially returned to the reactor.

Career Highlights

Daniel W. Marsh has been associated with Amoco Corporation, where he has applied his expertise in chemical processes. His work has been instrumental in enhancing the efficiency of catalyst recovery methods, which are crucial for sustainable chemical production.

Collaborations

Throughout his career, Daniel has collaborated with esteemed colleagues such as Kenneth J. Abrams and Bruce B. Doll. These partnerships have fostered innovation and contributed to the advancement of their shared field.

Conclusion

Daniel W. Marsh's contributions to catalyst recovery methods exemplify the impact of innovative thinking in chemical engineering. His patents reflect a commitment to improving industrial processes and sustainability.