Location History:
- Saint Marcel, FR (1978)
- Moutiers, FR (1980)
Company Filing History:
Years Active: 1978-1980
Title: Guy Gravey: Innovator in Metal Recovery Processes
Introduction
Guy Gravey is a notable inventor based in Saint Marcel, France. He has made significant contributions to the field of metal recovery, particularly through his innovative processes for extracting valuable metals from waste materials. With a total of 3 patents to his name, Gravey's work is essential for advancing sustainable practices in the industry.
Latest Patents
One of Gravey's latest patents is a process for the preparation of anhydrous metallic chlorides from waste. This process focuses on recovering metallic constituents from spent catalysts that contain metallic compounds fixed on an aluminous support. It is particularly effective for metals such as aluminum, molybdenum, vanadium, nickel, and cobalt. The method involves transforming the metals into volatile chlorides through carbochlorination and separating them using dry means. The separation of aluminum chloride is achieved by passing through granules of anhydrous sodium chloride, while molybdenum chloride is separated using crystallized potassium chloride. This innovative process is especially suitable for treating waste catalysts from catalytic hydrocracking or hydrodesulfurization of oils.
Another significant patent by Gravey is a process for recovering molybdenum values from spent catalysts. This method involves treating waste products containing molybdenum oxide or molybdenum sulfide with sodium carbonate and heating them to convert the molybdenum into sodium molybdate. The sodium molybdate is then converted to molybdic acid using concentrated nitric acid, resulting in high-purity molybdic acid suitable for producing molybdenum compounds and recovering pure metal.
Career Highlights
Gravey is currently associated with Metaux Speciaux S.A., where he continues to develop and refine his innovative processes. His work has garnered attention for its potential to improve the efficiency of metal recovery and reduce waste in industrial applications.
Collaborations
Throughout his career, Gravey has collaborated with notable colleagues such as Andre Roth and Jean Le Goff. These partnerships have contributed to the advancement of his research and the successful implementation of his patented processes.
Conclusion
Guy Gravey is a pioneering inventor whose work in metal recovery processes is making a significant impact in the field. His innovative approaches not only enhance the efficiency of metal extraction but also promote sustainable practices in industry.