Delignification of high kappa number kraft and soda-anthraquinone pulps with a polyoxometalate

Edward L. Springer, Rajai H. Atalla, Ira A. Weinstock, Aziz Ahmed, James S. Bond, Richard S. Reiner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Aqueous solutions of the polyoxometalate Na4.9+2[SiV 0.9MoW10.1O40] were used to delignify lodgepole pine and Douglas-fir kraft and soda-anthraquinone pulps from Kappa numbers of 70 down to Kappa number 30. The results were compared with kraft pulps from the same wood species pulped to Kappa number 30. The purpose of this work was to quantify the effects of the polyoxometalate delignification on the yields and strengths of the resulting bleachable grade pulps. The pulps that were POM-delignified were strong and had significantly higher yields than the kraft pulps. For both wood species, the POM-delignified kraft pulp gave results clearly superior to the other methods, with the highest yield and the highest viscosity.

Original languageEnglish
Title of host publicationTAPPI Pulping/Process and Product Quality Conference
Pages129-136
Number of pages8
StatePublished - 1 Dec 2000
Externally publishedYes
EventProceedings of the 2000 TAPPI Pulping/Process and Product Quality Process - Boston, MA, United States
Duration: 5 Nov 20008 Nov 2000

Publication series

NameTAPPI Pulping/Process and Product Quality Conference

Conference

ConferenceProceedings of the 2000 TAPPI Pulping/Process and Product Quality Process
Country/TerritoryUnited States
CityBoston, MA
Period5/11/008/11/00

Fingerprint

Dive into the research topics of 'Delignification of high kappa number kraft and soda-anthraquinone pulps with a polyoxometalate'. Together they form a unique fingerprint.

Cite this