Company Filing History:
Years Active: 1980-1985
Title: **Friedrich Bruhne: A Pioneer in Chemical Innovation**
Introduction
Friedrich Bruhne is a notable inventor based in Krefeld, Germany, known for his valuable contributions to the field of chemical engineering. With a total of five patents to his name, Bruhne has significantly advanced the methods for producing important chemical compounds.
Latest Patents
Among Friedrich Bruhne's latest patents is a groundbreaking method for the preparation of terephthaloyl and isophthaloyl dichlorides. This improved process involves the chlorination of dimethyl terephthalate and isophthalate using chlorine gas at elevated temperatures ranging from 100 to 250 degrees Celsius. The process may also utilize light and/or catalysts to enhance side-chain chlorination of aromatic compounds. Notably, it specifies the addition of 20 to 200% by weight of terephthaloyl and/or isophthaloyl dichloride relative to the weight of dimethyl terephthalate and/or isophthalate.
Another significant patent from Bruhne is for the preparation of benzoyl chloride. This innovative process allows for the chlorination of a high-boiling residue obtained from the catalytic oxidation of toluene with oxygen, effectively purifying it of heavy metal salts. This results in the efficient separation of benzoyl chloride at elevated temperatures, optionally utilizing light to facilitate the reaction.
Career Highlights
Friedrich Bruhne's professional career is primarily affiliated with Bayer Aktiengesellschaft, a prominent chemical and pharmaceutical company. Throughout his time at Bayer, Bruhne has exhibited a deep understanding of chemical processes, which has led to the successful patenting of numerous innovative techniques.
Collaborations
Throughout his career, Bruhne has collaborated with distinguished colleagues such as Karl-August Lipper and Walter Bockmann. Their work together at Bayer has contributed to the development and refinement of chemical methodologies, making strides in industrial applications.
Conclusion
Friedrich Bruhne exemplifies the spirit of innovation in the chemical industry. With his numerous patents, including processes for the efficient production of terephthaloyl and isophthaloyl dichlorides as well as benzoyl chloride, he has made a profound impact on the field. His collaborations and dedication to advancing chemical processes are indicative of his status as a respected inventor within the scientific community.