Location History:
- Leverkusen, DE (1982 - 1984)
- Bergisch Gladbach, DE (1987 - 1990)
Company Filing History:
Years Active: 1982-1990
Title: The Innovative Mind of Dietmar Mayer
Introduction: Dietmar Mayer, a distinguished inventor based in Bergisch Gladbach, Germany, has made significant contributions to the field of chemical engineering. With a total of six patents to his name, he has actively advanced the creation and processing of chemical compounds through innovative methods.
Latest Patents: Among his latest inventions, Mayer has developed a process for the preparation of 1,5-dihydroxynaphthalene. This enhanced process involves the alkaline pressure hydrolysis of the disodium salt of naphthalene-1,5-disulphonic acid at temperatures ranging from 270°C to 290°C and under 14 to 20 bar pressure. The innovative method uses an excess of sodium hydroxide solution, maintaining a molar ratio of NaOH to disodium salt of naphthalenesulphonic acid of at least 12:1. The resultant 1,5-dihydroxynaphthalene is produced in higher purity levels and can be subsequently aminated with ammonia, in the presence of ammonium bisulphite, to yield 1,5-diaminonaphthalene. Further improvements in purity can be achieved by increasing the molar ratio of ammonia to 1,5-dihydroxynaphthalene to at least 6:1. Another notable patent of his includes a process for the preparation of chemical compounds obtained as solids, where reactions of liquid starting substances are conducted via a spraying technique, allowing for effective mixing and reaction of the substances.
Career Highlights: Dietmar Mayer is associated with Bayer Aktiengesellschaft, a company renowned for its commitment to innovation in the pharmaceuticals and life sciences sector. His work at Bayer emphasizes the importance of developing safer and more efficient methods for chemical production, showcasing his prowess as a key player in his field.
Collaborations: Throughout his career, Mayer has collaborated with prominent figures in the industry, including his coworkers Heinz U Blank and Horst Behre. These partnerships have fostered an environment of creativity and shared knowledge, contributing to the advancement of their collective research endeavors.
Conclusion: With his extensive knowledge and innovative approaches to chemical processes, Dietmar Mayer continues to push the boundaries of invention. His patents reflect a dedication to improving the quality and safety of chemical compounds, solidifying his reputation as a significant contributor to the field of chemical engineering.