Location History:
- St. Louis, MO (US) (1976)
- Seattle, WA (US) (1980)
- Creve Coeur, MO (US) (1977 - 1986)
Company Filing History:
5 out of 3,288 
1 out of 832,880 Years Active: 1976-1986
Title: Innovations of James W Edwards
Introduction
James W Edwards is a notable inventor based in Creve Coeur, MO (US). He holds a total of six patents, showcasing his significant contributions to the field of chemical engineering. His work primarily focuses on the development of catalysts for industrial processes.
Latest Patents
One of his latest patents is a process for preparing phosphorus-vanadium mixed oxide oxidation catalysts. This innovative method involves introducing a substantially pentavalent vanadium-containing compound and a pentavalent phosphorus-containing compound into an alcohol medium. This medium is capable of reducing the vanadium to a valence state less than +5 in the presence of an alcohol-modifying agent. The resulting phosphorus-vanadium mixed oxide catalyst precursor is then recovered, dried, formed into desired structures, and calcined at temperatures ranging from about 250°C to about 600°C. These catalysts are highly effective, exhibiting a weight/weight productivity of at least 70 grams of maleic anhydride per kilogram of catalyst per hour.
Another significant patent by Edwards is the process for producing maleic anhydride. This process involves the oxidation of a non-aromatic hydrocarbon with at least four carbon atoms in a straight chain, using molecular oxygen or a molecular oxygen-containing gas in the vapor phase. The phosphorus-vanadium mixed oxide oxidation catalyst plays a crucial role in this process, further emphasizing the importance of his innovations in chemical production.
Career Highlights
Throughout his career, James W Edwards has worked with prominent companies, including Monsanto Company. His experience in the industry has allowed him to develop and refine his innovative processes, contributing to advancements in catalyst technology.
Collaborations
Some of his notable coworkers include James T Wrobleski and Charles R Graham. Their collaboration has likely fostered an environment of innovation and creativity, leading to significant advancements in their respective fields.
Conclusion
James W Edwards is a distinguished inventor whose work in catalyst development has made a lasting impact on the chemical engineering industry. His innovative processes for preparing catalysts and producing maleic anhydride demonstrate his expertise and commitment to advancing technology.