Herbert Sixta

Title: Herbert Sixta: Innovator in Pulp Production and Acetic Acid Recovery

Introduction

Herbert Sixta is a notable inventor based in Lenzing, Austria. He has made significant contributions to the field of pulp production and the recovery of acetic acid from wood extracts. With a total of four patents to his name, Sixta's work has had a considerable impact on the industry.

Latest Patents

Sixta's latest patents include a process for producing dissolving pulp from a cellulosic starting material using the kraft process. This innovative process involves cooking the starting material with a cooking liquor, where the starting material is first exposed to steam treatment prior to cooking. Additionally, the pulp obtained is subjected to cold caustic extraction during further processing. Another significant patent focuses on the recovery of acetic acid from wood extracts. In this process, an aqueous wood extract containing acetic acid and dissolved hemicellulose is treated with a water-insoluble solvent containing an extractant for the acetic acid. The preferred solvent is undecane, and the extractant is trioctylphosphine oxide, which effectively extracts and recovers acetic acid from the wood extract.

Career Highlights

Throughout his career, Herbert Sixta has worked with prominent organizations such as Lenzing Aktiengesellschaft and the University of Maine System. His experience in these institutions has allowed him to develop and refine his innovative processes.

Collaborations

Sixta has collaborated with notable colleagues, including Andrea Promberger and Andrea Borgards. Their joint efforts have contributed to the advancement of research in the field of pulp production and chemical recovery.

Conclusion

Herbert Sixta's contributions to the field of pulp production and acetic acid recovery demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving industrial processes and sustainability.