Improved oxygen delignification of bisulfite pulps.
1996 (English)In: Proceedings Int. Pulp Bleaching: Book 2, 1996, 14-18 p.Conference paper (Refereed)
The role of peracetic acid in improving a second oxygen delignification step of softwood bisulfite pulp was investigated. The results showed that peracetic acid improved the degree of delignification in a second oxygen stage, probably by increasing the content of free phenolic hydroxyl groups and therefore making the lignin more receptive to a second oxygen stage. Oxygen pressurized peracetic acid stages were also studied and compared to atm. peracetic acid stages. Pressurized peracetic acid stages gave only a minor effect in lowering the Kappa no.
Place, publisher, year, edition, pages
1996. 14-18 p.
Polymer Technologies Polymer Chemistry
IdentifiersURN: urn:nbn:se:kth:diva-79840OAI: oai:DiVA.org:kth-79840DiVA: diva2:497954
Int. Pulp Bleaching, Washington April 14-18, 1996
NR 201408052012-02-112012-02-092012-02-11Bibliographically approved