Company Filing History:
Years Active: 1987-1994
Title: Ralf Wirges: Innovator in DMT Production Processes
Introduction
Ralf Wirges is a notable inventor based in Niederkassel, Germany. He has made significant contributions to the field of chemical engineering, particularly in the production of DMT (Dimethyl Terephthalate) intermediate products. With a total of four patents to his name, Wirges has demonstrated a commitment to innovation and excellence in his work.
Latest Patents
One of his latest patents is focused on a process for the production of a DMT intermediate product of specific purity. This invention relates to a method for producing a DMT intermediate product and its subsequent processing into fiber-grade DMT and medium-pure and pure terephthalic acid. The process involves the combined oxidation of a predominantly para-xylene and para-toluic acid methyl ester mixture in a liquid phase with an oxygen-containing gas. The acids produced are esterified with methanol, followed by the distillative separation of the esterification products into various fractions. The DMT fraction is then purified through single solvent recrystallization in methanol, ensuring that the amounts of hydroxymethylbenzoic acid methyl ester and terephthalic acid methyl ester in the DMT intermediate product are minimized.
Career Highlights
Throughout his career, Ralf Wirges has worked with prominent companies in the chemical industry, including Dynamit Nobel Aktiengesellschaft and Huls Aktiengesellschaft. His experience in these organizations has contributed to his expertise in chemical processes and patent development.
Collaborations
Wirges has collaborated with notable colleagues such as Anton Schoengen and Rudolf Modic. These partnerships have likely enriched his work and contributed to the successful development of his patents.
Conclusion
Ralf Wirges is a distinguished inventor whose work in DMT production processes has made a significant impact in the field of chemical engineering. His innovative approaches and collaborations highlight his dedication to advancing technology in this area.