Yves Perret

Title: Yves Perret: Innovator in Sodium Aluminate Decomposition

Introduction

Yves Perret is a notable inventor based in Gardanne, France. He has made significant contributions to the field of chemical engineering, particularly in the decomposition of sodium aluminate liquors. With a total of 2 patents to his name, his work has implications for the Bayer process used in aluminum production.

Latest Patents

Yves Perret's latest patents focus on methods and apparatuses for decomposing sodium aluminate liquors without agitation. The first patent describes a method initiated by the introduction of alumina trihydrate seed, forming a suspension that is fed into a non-agitated reactor known as a 'decomposer'. The suspension is then removed from the bottom of the decomposer, with its downward movement regulated at a speed of 1.5 to 10 meters per hour. The apparatus features a cylindrical-conical reactor equipped with feeding and removal arrangements. In one embodiment, the suspension is taken from the base of the decomposer through an internal tube, where air is injected to raise it to the top before being sent downstream.

The second patent elaborates on a similar method and apparatus for decomposing sodium aluminate liquors. This invention also initiates decomposition through the introduction of alumina trihydrate seed, forming a suspension that is processed in a non-agitated reactor. The design and operational parameters are consistent with his first patent, emphasizing efficiency and innovation in the decomposition process.

Career Highlights

Yves Perret has worked with Aluminium Pechiney, a prominent company in the aluminum industry. His role has allowed him to apply his innovative ideas in practical settings, contributing to advancements in chemical processing.

Collaborations

Throughout his career, Yves has collaborated with notable colleagues such as Eric Chantriaux and Henri Grobelny. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Yves Perret's contributions to the field of sodium aluminate decomposition highlight his innovative spirit and dedication to advancing chemical engineering. His patents reflect a commitment to improving industrial processes, making a lasting impact in the aluminum production industry.