Company Filing History:
Years Active: 1978
Title: **Innovative Contributions of Andre Roth in Molybdenum Recovery**
Introduction
Andre Roth, based in Moutiers, France, is a notable inventor with a focus on the innovative recovery of molybdenum from spent catalysts. With a total of two patents to his name, Roth has made significant contributions to the field of materials recovery, particularly concerning valuable metals.
Latest Patents
Roth's latest patents center around a novel process for recovering molybdenum values from spent catalysts. The first patent describes a method that involves treating waste products with sodium carbonate and heating them to convert molybdenum present in the form of molybdenum oxide or molybdenum sulfide into sodium molybdate. This sodium molybdate is then transformed into molybdic acid using concentrated nitric acid, resulting in a high-purity product suitable for producing various molybdenum compounds and recovering the pure metal.
The second patent also outlines a similar process, detailing the steps of mixing spent catalysts with sodium carbonate powder and water, baking the mixture, and treating it with carbon dioxide gas. This method includes dissolving the resulting sodium molybdate in hot water, followed by neutralization and clarification with nitric acid to ultimately produce high-purity molybdic acid.
Career Highlights
Throughout his career, Andre Roth has worked with Metaux Speciaux S.A., where he has leveraged his expertise in chemical processes to develop innovative solutions for metal recovery. His dedication to improving industrial processes reflects his commitment to sustainable practices and resource efficiency.
Collaborations
Roth collaborates with a team of talented professionals, including his coworkers Guy Gravey and Herman Castagna. Their combined efforts contribute to advancing the understanding and implementation of molybdenum recovery technologies.
Conclusion
In summary, Andre Roth's contributions to the field of molybdenum recovery are marked by his inventive processes and dedication to improving waste management in the metal industry. As industries continue to seek sustainable solutions, Roth's work stands as an exemplary model of innovation in resource recovery.