U Johanna Buchert

Title: U Johanna Buchert: Innovator in Chemical Cellulose Processing

Introduction

U Johanna Buchert is a notable inventor based in Espoo, Finland. He has made significant contributions to the field of chemical cellulose processing, particularly in the treatment of cellulosic pulp. His innovative methods aim to enhance the quality and efficiency of cellulose production.

Latest Patents

U Johanna Buchert holds a patent for a method of treating cellulosic pulp to remove hexenuronic acid. This method involves treating chemical cellulose pulp produced by alkaline delignification, which has a kappa number of under 24, to effectively remove at least 50% of the hexenuronic acid. The treatment is conducted at temperatures exceeding 85°C, specifically between 90-180°C, and at a pH level ranging from 2 to 5. This process not only reduces the hexenuronic acid content but also decreases the kappa number by at least two units. The treatment time is calculated based on a specific formula that considers the treatment temperature.

Career Highlights

U Johanna Buchert is associated with Andritz Oy, a company known for its expertise in industrial equipment and services. His work has contributed to advancements in cellulose processing technologies, making significant impacts in the industry.

Collaborations

U Johanna Buchert has collaborated with notable colleagues, including Tapani Vuorinen and Anita B-l Teleman. Their combined efforts have fostered innovation and development in cellulose treatment methods.

Conclusion

U Johanna Buchert's contributions to the field of chemical cellulose processing highlight his role as an innovator. His patented methods for treating cellulosic pulp demonstrate a commitment to improving industrial processes.