Production of Dissolving Grade Pulps from Wood and Non-wood Paper Grade Pulps Using Enzymatic and Chemical Pre-treatments
(English)Manuscript (preprint) (Other academic)
Cellulose is the most abundant biorenewable material, constitutes an important polymer since it is used as raw material for several products, e.g. paper and board but also cellulose-based products which have many important applications in the pharmaceutical, textile, food and paint industries. A raw material with high cellulose content and low content of hemicelluloses, residual lignin, extractives and minerals is required for the production of these products, e.g. cotton and dissolving grade pulp are used. However, the high cost production of dissolving grade pulps has aroused the possibility of upgrading paper grade pulps into dissolving pulps by selective removal of hemicelluloses and subsequent activation of the pulps. This study reports the feasibility to produce dissolving grade pulps from different wood and non-wood paper grade pulps employing enzymatic and chemical pre-treatments. The results were compared to those of commercial bleached dissolving pulps.
IdentifiersURN: urn:nbn:se:kth:diva-77019OAI: oai:DiVA.org:kth-77019DiVA: diva2:491397
QS 20122012-10-312012-02-062012-10-31Bibliographically approved