Location History:
- Geleen, NL (1978)
- Nederweert Eind, NL (1982 - 1986)
- Nederweert, NL (1984 - 2001)
Company Filing History:
3 out of 574 
1 out of 10 
1 out of 475 
Years Active: 1978-2001
Title: Otto G Plantema: Innovator in Chemical Processes
Introduction
Otto G Plantema is a notable inventor based in Nederweert, Netherlands. He has made significant contributions to the field of chemical processes, holding a total of five patents. His work focuses on innovative methods for the preparation of various chemical compounds, showcasing his expertise and creativity in the industry.
Latest Patents
One of Plantema's latest patents is a process for the preparation of benzyl alcohol. This method involves the hydrolysis of a benzyl ester with water in the liquid phase, conducted without a strong acid or base at temperatures ranging from 40°C to 320°C. The benzyl ester can be selected from a group that includes benzyl formiate, benzyl propionate, benzyl acetate, and benzyl benzoate. The process allows for the optional addition of a weak acid to the reaction mixture. After hydrolysis, the mixture is cooled to a temperature between 80°C and 180°C to facilitate phase separation, resulting in benzyl alcohol with a high yield and purity exceeding 98%. Another significant patent involves the recovery of caprolactam from distillation residue. This process entails distilling the residue under reduced pressure to obtain a caprolactam-containing distillate, which is then hydrogenated in an aqueous medium to recover caprolactam from the resulting product.
Career Highlights
Throughout his career, Plantema has worked with prominent companies, including Stamicarbon B.V. and its licensing subsidiary, DSM. His experience in these organizations has allowed him to develop and refine his innovative processes, contributing to advancements in chemical manufacturing.
Collaborations
Plantema has collaborated with notable colleagues such as Nicolaas F Haasen and Paul C Van Geem. These partnerships have likely fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Otto G Plantema's contributions to the field of chemical processes through his patents and collaborations highlight his role as an influential inventor. His innovative methods for producing benzyl alcohol and recovering caprolactam demonstrate his commitment to advancing chemical engineering.