Gunther Muller-Schiedmayer

Title: Gunther Muller-Schiedmayer: Innovator in Chemical Processes

Introduction

Gunther Muller-Schiedmayer is a notable inventor based in Burgkirchen, Germany. He has made significant contributions to the field of chemical manufacturing, particularly through his innovative processes. His work has led to advancements in the production of important chemical compounds.

Latest Patents

Muller-Schiedmayer holds a patent for a process for the manufacture of N,N,N',N'-tetraacetylethylenediamine. This invention provides an improved method for producing this compound by acetylating N,N'-diacetylethylenediamine with acetic anhydride. The process involves using these two starting components in a weight ratio ranging from 1:1 to 1:10. The acetylation is stopped before reaching the reaction equilibrium, preferably after achieving a conversion rate of 20 to 70 mol % of tetraacetylethylenediamine relative to diacetylethylenediamine. The reaction mixture is then purified to remove dyeing impurities, and the purified, incompletely reacted components are recycled back into the acetylation process. Purification can be achieved through vacuum distillation or using adsorbents like bleaching earth or active charcoal. Optionally, ketene can be added to enhance the process. This method can be conducted either batchwise or continuously, yielding a practically colorless product with a high yield of over 97%.

Career Highlights

Muller-Schiedmayer is associated with Hoechst Aktiengesellschaft, a prominent company in the chemical industry. His work there has been instrumental in developing efficient manufacturing processes that contribute to the company's success.

Collaborations

Muller-Schiedmayer has collaborated with Rudolf Aigner, further enhancing the innovative capabilities within their field.

Conclusion

Gunther Muller-Schiedmayer's contributions to chemical manufacturing through his patented processes demonstrate his commitment to innovation and efficiency in the industry. His work continues to influence the production of important chemical compounds.