John Chau

Title: John Chau: Innovator in Organic Solvent Separation

Introduction

John Chau is an accomplished inventor based in Belleville, NJ (US). He holds a patent that addresses the challenges associated with the reverse osmosis (RO) separation of organic solvent mixtures. His innovative approach focuses on utilizing a specific perfluoropolymer to enhance the separation process.

Latest Patents

John Chau's patent, titled "Separation of organic solvent mixtures," presents a novel method for the reverse osmosis separation of organic solvents with molecular weights less than 100 Da. This process is particularly significant for powerful solvents that tend to swell uncrosslinked polymers. Chau's research highlights the use of a perfluoropolymer, specifically perfluoro-2,2-dimethyl-1,3-dioxole copolymerized with tetrafluoroethylene (PDD-TFE), designated as CMS-7. This amorphous glassy copolymer exhibits extreme hydrophobicity and a high free volume (FV) fraction, allowing for selective permeation of solvent molecules.

Career Highlights

Throughout his career, John Chau has made significant contributions to the field of organic solvent separation. His work has focused on understanding the interactions between the polarity, dimensions, and shapes of solvent molecules and the polymer FV elements. This research has led to extraordinarily selective permeation behaviors for various solvent mixtures, including toluene-n-heptane, NMP-tetrahydrofuran, methanol-water, and ethanol-water.

Collaborations

John Chau has collaborated with notable colleagues, including Kamalesh K Sirkar and Prithish Basak. Their combined expertise has further advanced the research in organic solvent separation technologies.

Conclusion

John Chau's innovative work in the field of organic solvent separation demonstrates his commitment to advancing technology in this area. His patent and research contributions have the potential to significantly impact the efficiency of solvent separation processes.