Yves Le Quesne

Title: Yves Le Quesne: Innovator in Hydrometallurgical Processes

Introduction

Yves Le Quesne is a notable inventor based in Rambouillet, France. He has made significant contributions to the field of hydrometallurgy, particularly in the treatment of lateritic nickel and cobalt ores. His innovative approaches have the potential to enhance the efficiency of metal extraction processes.

Latest Patents

Yves Le Quesne holds a patent for a process aimed at the hydrometallurgical treatment of lateritic nickel/cobalt ore. This process involves a mixture of limonite and saprolite, which is treated in the presence of an iron-precipitating agent. The mixture is transformed into a pulp with a solids content of between 10 and 40% by weight. The pulp undergoes a leaching operation with sulphuric acid at temperatures ranging from 70°C to the boiling point, all while maintaining atmospheric pressure. Following this, a solid-liquid separation is performed to yield an iron-containing solid residue and a solution rich in nickel and cobalt ions. This innovative process also includes methods for producing nickel and/or cobalt intermediate concentrates or commercial products.

Career Highlights

Yves Le Quesne is associated with Eramet, a company known for its expertise in metallurgy and mining. His work at Eramet has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in the extraction of valuable metals.

Collaborations

Throughout his career, Yves has collaborated with notable colleagues such as Jérôme Agin and Bertrand Berthomieu. These collaborations have fostered a productive environment for innovation and development in their field.

Conclusion

Yves Le Quesne's contributions to hydrometallurgy exemplify the impact of innovative thinking in the extraction of nickel and cobalt. His patent reflects a significant advancement in the treatment of lateritic ores, showcasing his role as a key inventor in this specialized area.