Emmanuelle Allain

Title: Emmanuelle Allain: Innovator in Precipitated Silica Processes

Introduction

Emmanuelle Allain is a notable inventor based in L'Hay les Roses, France. She has made significant contributions to the field of materials science, particularly in the preparation of precipitated silica. With a total of 8 patents to her name, Allain's work has had a considerable impact on various industrial applications.

Latest Patents

One of her latest patents involves a detailed process for preparing precipitated silica. This innovative method includes several steps: first, an aqueous stock with a concentration of alkali metal silicate less than 20 g/L is formed. Next, acid is added to this initial stock until at least 50% of the amount of metal oxide is neutralized. Silicate and acid are then simultaneously added, ensuring that the degree of consolidation is greater than 4 and at most 100. The process also requires that the pH of the reaction medium remains between 7 and 10 during the simultaneous addition of silicate and acid. Finally, acid is added until a pH value between 2.5 and 5.3 is achieved, with the reaction medium being in contact with acid and silicate throughout the process.

Career Highlights

Throughout her career, Emmanuelle Allain has worked with prominent companies such as Rhodia Operations and Michelin Recherche et Technique S.A. Her experience in these organizations has allowed her to refine her expertise in the field of silica preparation and materials science.

Collaborations

Emmanuelle has collaborated with several professionals in her field, including Sylvaine Neveu and Julien Hernandez. These collaborations have contributed to her innovative approaches and successful patent applications.

Conclusion

Emmanuelle Allain's contributions to the preparation of precipitated silica highlight her role as a leading inventor in her field. Her innovative processes and collaborations with industry professionals underscore her impact on materials science.