Jeffrey I Rosenfeld

Title: Innovations of Jeffrey I Rosenfeld

Introduction

Jeffrey I Rosenfeld is a notable inventor based in Schaumburg, IL (US). He has made significant contributions to the field of chemical engineering, particularly in the recovery and purification of aromatic acids and polyols from waste materials. With a total of 3 patents, his work has implications for both environmental sustainability and industrial processes.

Latest Patents

Rosenfeld's latest patents include a process for the recovery of aromatic acid or ester and polyol from waste. This innovative process involves the depolymerization of polyester resin in a liquid solvent under elevated temperature and pressure. The method allows for the crystallization of dibasic aromatic acids or esters from the solution, leading to the separation of crude products from impurities. Another significant patent is for the preparation of crude terephthalic acid, which is essential for manufacturing polyesters used in fabrics, fibers, and plastic bottles. This process utilizes a counter-current positive displacement method to efficiently extract aliphatic carboxylic acids from filter cakes.

Career Highlights

Throughout his career, Rosenfeld has worked with prominent companies such as Amoco Corporation and Standard Oil Company (Indiana). His experience in these organizations has contributed to his expertise in chemical processes and patent development.

Collaborations

Rosenfeld has collaborated with various professionals in his field, including John C Gee, enhancing the scope and impact of his inventions.

Conclusion

Jeffrey I Rosenfeld's innovative work in the recovery and purification of chemical compounds demonstrates his commitment to advancing industrial processes while promoting environmental sustainability. His contributions continue to influence the field of chemical engineering.