Susan L Vorhies

Title: Innovations of Susan L Vorhies

Introduction

Susan L Vorhies is a notable inventor based in Indianapolis, IN (US). She has made significant contributions to the field of chemical processes, particularly in the recovery of citric and lactic acids. With a total of 3 patents to her name, her work has implications for both industrial applications and environmental sustainability.

Latest Patents

One of her latest patents focuses on processes for recovering citric acid. This patent describes preferred methods for effectively recovering citric acid from a medium in which it is contained. The processes involve contacting the citric acid-containing medium with a solid-phase free base resin that has tertiary amine groups to adsorb the citric acid. The citric acid is then desorbed by displacement with a stronger acid, allowing for the collection of a citric acid-containing fraction that is substantially free from contamination. Another innovative process involves using a solid-phase divinylbenzene-crosslinked polymer with pyridine or aliphatic tertiary amine functions to adsorb citric acid at temperatures below 40 degrees Celsius. This method ensures a commercially attractive recovery of citric acid while avoiding unnecessary impurities.

Additionally, she has developed a process for producing and recovering lactic acid. This improved fermentation process is designed to create a fermentation broth containing undissociated lactic acid. The broth is then contacted with a solid-phase polymer containing pyridine groups, which enhances the rate of production of the free acid.

Career Highlights

Susan L Vorhies is currently associated with Reilly Industries, Inc., where she continues to innovate in her field. Her work has not only advanced the understanding of acid recovery processes but has also contributed to more efficient industrial practices.

Collaborations

Throughout her career, Susan has collaborated with notable colleagues, including Donald W McQuigg and Charles R Marston. These collaborations have further enriched her research and development efforts.

Conclusion

Susan L Vorhies exemplifies the spirit of innovation in chemical engineering, with her patents paving the way for advancements in acid recovery processes. Her contributions are significant in both industrial applications and environmental sustainability.