Harold Greenfield

Title: Harold Greenfield: Innovator in Aromatic Monoamine and Diamine Production

Introduction

Harold Greenfield is a notable inventor based in Pascagoula, MS (US). He has made significant contributions to the field of chemical engineering, particularly in the co-production of aromatic monoamines and diamines. His innovative processes have implications for various industrial applications.

Latest Patents

Harold Greenfield holds a patent for a two-stage process for the co-production of aniline and m-phenylenediamine. This process involves the reaction of benzene, nitric acid, and sulfuric acid in the first stage to produce nitrobenzene and m-dinitrobenzene. The second stage utilizes hydrogen to convert the products from the first stage into aniline and m-phenylenediamine. The reaction products are then separated by distillation, showcasing a novel approach to chemical production.

Career Highlights

Greenfield's career is marked by his work at First Chemical Corporation, where he has applied his expertise in chemical processes. His innovative methods have contributed to advancements in the production of essential chemical compounds. He has demonstrated a commitment to improving industrial processes through his inventive work.

Collaborations

Throughout his career, Harold Greenfield has collaborated with notable colleagues, including Earl G Alley and Arthur C Bayer. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Harold Greenfield's contributions to the field of chemical engineering, particularly in the co-production of aromatic compounds, highlight his role as an influential inventor. His patented processes reflect a commitment to innovation and efficiency in chemical production.