John W Crandall

Title: Innovations of John W. Crandall

Introduction

John W. Crandall is a notable inventor based in Charleston, WV (US). He has made significant contributions to the field of chemical engineering, particularly in the area of refining processes. With a total of 5 patents to his name, Crandall's work has had a substantial impact on the industry.

Latest Patents

One of Crandall's latest patents is a process for refining ethylene glycol. This process involves recovering polyester-grade ethylene glycol from crude ethylene glycol that contains components with a normal boiling point below that of ethylene glycol. The method includes supplying a crude ethylene glycol stream to a distillation system and maintaining a diluent to reduce the formation of UV absorbers. Another significant patent is for the recovery of amines from by-product chloride salts. This method separates alkyleneamines from a mixture of by-product alkali or alkaline earth metal chloride salt and alkyleneamines through a sequenced combination of washing and physical separation.

Career Highlights

Crandall is currently employed at Union Carbide Corporation, where he continues to innovate and develop new processes. His work has been instrumental in advancing the efficiency and effectiveness of chemical production methods.

Collaborations

Throughout his career, Crandall has collaborated with several notable colleagues, including David P. Higley and Gary L. Culp. These collaborations have fostered a productive environment for innovation and development.

Conclusion

John W. Crandall's contributions to the field of chemical engineering through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the industry and pave the way for future innovations.