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Improving the bleachability of whole cotton stalk chemimechanical pulp with depectinization agents
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2012 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 7, no 3, 4171-4178 p.Article in journal (Refereed) Published
Abstract [en]

The effects of pretreatment agents on pectin removal and chemical compositions in cotton stalk bark were studied. The results showed that the reaction rates of the depectinization agents reacting with calcium pectinate were V-Na2C2O4 > V-Na5P3O10 > V-NaOH. The ratio of pectin removal reached 53.73% after pretreatment with 3% sodium oxalate. When the parameters of precondition were 3% sodium oxalate, 90 degrees C, and bleaching with 6.5% NaOH and 11% H2O2, the brightness of chemimechanical pulp from whole cotton stalk reached 76.18% ISO.

Place, publisher, year, edition, pages
2012. Vol. 7, no 3, 4171-4178 p.
Keyword [en]
Whole cotton stalk, Chemimechanical pulp, Pectin, Brightness
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-102651ISI: 000307639900114Scopus ID: 2-s2.0-84865790799OAI: oai:DiVA.org:kth-102651DiVA: diva2:556076
Note

QC 20120924

Available from: 2012-09-24 Created: 2012-09-21 Last updated: 2017-12-07Bibliographically approved

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