Company Filing History:
Years Active: 1994-2000
Title: Wilfried Niemeier: Innovator in Aliphatic Diol Production
Introduction
Wilfried Niemeier is a notable inventor based in Krefeld, Germany. He has made significant contributions to the field of chemical engineering, particularly in the production of aliphatic diols. With a total of 5 patents to his name, Niemeier's work has had a considerable impact on industrial processes.
Latest Patents
One of his latest patents is a process for producing aliphatic α,ω-diols comprising 4 to 12 carbon atoms from aliphatic α,ω-dicarboxylic acids. This innovative method involves forming an oligoester from a diol and a dicarboxylic acid, which is then catalytically hydrogenated in the liquid phase. The hydrogenation process is conducted continuously at temperatures ranging from 180 to 250 degrees Celsius and at hydrogen pressures between 100 to 400 bar. The catalyst used is free from zinc oxide and consists of pressed powders of copper, manganese, and aluminum oxides, along with at least one oxide of metals from subgroup VI of the periodic table. The amount of hydrogen used is significantly higher than the stoichiometric requirement, ranging from 20 to 100 times.
Another significant patent by Niemeier is for producing isocamphyl cyclohexanoles, which further showcases his expertise in chemical processes.
Career Highlights
Niemeier has had a distinguished career, working with Bayer Aktiengesellschaft, a leading global company in the pharmaceutical and life sciences sector. His innovative approaches and technical knowledge have contributed to advancements in chemical production methods.
Collaborations
Throughout his career, Niemeier has collaborated with esteemed colleagues such as Gerhard Darsow and Gerd-Michael Petruck. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Wilfried Niemeier's contributions to the field of chemical engineering, particularly in the production of aliphatic diols, highlight his role as a significant inventor. His patents and collaborations reflect a commitment to advancing industrial processes and improving chemical production methods.