Heinz Wallisch

Title: Innovations of Heinz Wallisch in Cellulose Ether Production

Introduction

Heinz Wallisch is a notable inventor based in Eltville, Germany, recognized for his contributions to the field of cellulose ether production. With a total of two patents to his name, Wallisch has developed innovative processes that enhance the purification of reaction media used in the manufacturing of cellulose ethers.

Latest Patents

Wallisch's latest patents include a process for the purifying working-up of reaction media and/or wash media. This invention focuses on the ultrafiltration of liquid reaction media obtained during the preparation of cellulose ethers, which are insoluble in hot water. The process involves carrying out ultrafiltration at a temperature at or above the flocculation temperature of the cellulose ethers. Another significant patent is for the purification treatment of aqueous distillation residues during the treatment of cellulose ethers. This process includes distilling low-boiling organic by-products and subsequently ultrafiltering the aqueous distillation residue, resulting in a reduction of COD values by about 20% by weight.

Career Highlights

Heinz Wallisch is associated with Hoechst Aktiengesellschaft, a prominent company in the chemical industry. His work has significantly contributed to advancements in cellulose ether production, showcasing his expertise in chemical processes and purification techniques.

Collaborations

Wallisch has collaborated with notable coworkers, including Uth H Felcht and Michael Kostrzewa, who have also contributed to the field of cellulose ether production.

Conclusion

Heinz Wallisch's innovative patents and career at Hoechst Aktiengesellschaft highlight his significant contributions to the field of cellulose ether production. His work continues to influence advancements in chemical processes and purification methods.