Dieter Stein

Title: Dieter Stein: Innovator in Tartaric Acid Production

Introduction

Dieter Stein is a notable inventor based in Wiesbaden, Germany. He has made significant contributions to the field of chemistry, particularly in the production and recovery of tartaric acid. With a total of 4 patents to his name, Stein's work has had a considerable impact on the industry.

Latest Patents

One of Stein's latest patents is a process for the continuous recovery of free tartaric acid from raw materials containing potassium hydrogentartrate. In this innovative process, raw materials are mixed with water to dissolve potassium hydrogentartrate. The suspension is then decanted, and the clarified liquid is refiltered. The filtrate is cooled to crystallization temperature under a vacuum, allowing potassium hydrogentartrate crystals to form. These crystals are subsequently dissolved, and the solution undergoes cation exchange, resulting in an evaporated tartaric acid solution.

Another significant patent by Stein involves the production of tartaric acid from raw materials containing potassium hydrogentartrate. In this process, the raw material, which contains at least 5 wt% potassium hydrogentartrate, is mixed with an aqueous potassium hydroxide solution. This reaction stage converts potassium hydrogentartrate into dipotassium tartrate. The resulting aqueous solution is then mixed with added acid to produce a suspension containing crystallized potassium hydrogentartrate, which is separated, washed, and processed to obtain an aqueous tartaric acid product solution.

Career Highlights

Throughout his career, Dieter Stein has worked with various companies, including Metallgesellschaft Aktiengesellschaft. His expertise in chemical processes has allowed him to develop innovative solutions that enhance the production of tartaric acid.

Collaborations

Stein has collaborated with notable professionals in his field, including Gunter Roller and Klaus Erb. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Dieter Stein's contributions to the field of tartaric acid production demonstrate his innovative spirit and dedication to advancing chemical processes. His patents reflect a commitment to improving efficiency and sustainability in the industry.