Company Filing History:
Years Active: 1980-1981
Title: Ketil Hasvold: Innovator in Wood Pulp Processing
Introduction
Ketil Hasvold is a notable inventor based in Sarpsborg, Norway. He has made significant contributions to the field of wood pulp processing, holding 2 patents that focus on innovative methods for drying and producing cellulose.
Latest Patents
Hasvold's latest patents include a method for drying chemical or semi-chemical wood pulp. This invention provides a technique for drying pulp, particularly short-fibred sulphate and sulphite pulp, to achieve a low content of fibre nodules. The process involves an initial drying step, followed by reslushing in water, optional bleaching, dewatering, and flash drying in a second step. Another patent focuses on the production of unbleached sulphite cellulose or bleached cellulose. In this method, knots separated from sulphite cellulose are converted into unbleached sulphite cellulose by defibrating the knots and treating them with oxygen under pressure in an alkaline environment at elevated temperatures. The resultant cellulose can be bleached alone or mixed with sulphite cellulose from knot-free pulp.
Career Highlights
Throughout his career, Ketil Hasvold has worked with prominent companies such as Borregaard Industries Limited and Borregaard AS. His work in these organizations has allowed him to develop and refine his innovative techniques in wood pulp processing.
Collaborations
Hasvold has collaborated with notable coworkers, including Birger Morud and Leiv Lunde. Their combined expertise has contributed to advancements in the field of cellulose production.
Conclusion
Ketil Hasvold's contributions to wood pulp processing through his innovative patents highlight his role as a significant inventor in the industry. His methods for drying and producing cellulose continue to influence the field and demonstrate the importance of innovation in sustainable practices.