Location History:
- Taejeon, KR (1998 - 2001)
- Daejeon, KR (2003 - 2014)
Company Filing History:
Years Active: 1998-2014
Title: Innovations of Jin-Eok Kim in Chemical Engineering
Introduction
Jin-Eok Kim is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of chemical engineering, particularly in the preparation of various chemical compounds. With a total of 10 patents to his name, his work has had a substantial impact on the industry.
Latest Patents
One of Jin-Eok Kim's latest patents is a method for the preparation of 4,4'-dinitrodiphenylamine (4,4'-DNDPA) and 4,4'-bis(alkylamino)diphenylamine (4,4'-BAADA) using a base catalyst complex. This innovative method allows for high yield production of 4,4'-DNDPA via the NASH reaction, utilizing a mixture of a bis-quaternary ammonium base and a base catalyst. Additionally, the process includes hydrogenating the resulting 4,4'-DNDPA with a ketone in the presence of hydrogen and a hydrogenation catalyst to produce 4,4'-BAADA in high yield and purity. The catalyst complex used in this invention not only facilitates easy recovery but also provides superior alkaline stability, ultimately reducing production costs.
Another notable patent involves the preparation of 4,4'-dinitrodiphenylamine and 4,4'-bis(alkylamino)diphenylamine by using 4-nitroaniline. This method also achieves high yield for 4,4'-DNDPA by reacting 4-nitroaniline with excess nitrobenzene through the NASH reaction. The process is designed to allow selective preparation of 4,4'-DNDPA without byproducts, simplifying the purification procedure for 4,4'-BAADA.
Career Highlights
Jin-Eok Kim is currently employed at Korea Kumho Petrochemical Co., Ltd., where he continues to innovate and develop new chemical processes. His expertise in chemical engineering has led to advancements that benefit both his company and the broader industry.
Collaborations
Throughout his career, Jin-Eok Kim has collaborated with notable colleagues, including Jeong-Im Won and Young J Joo. These partnerships have fostered a collaborative environment that enhances the innovation process.
Conclusion
Jin-Eok Kim's