Elemental Chlorine-Free Bleaching of Soda Rapeseed Pulp

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F16%3A39901719" target="_blank" >RIV/00216275:25310/16:39901719 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Elemental Chlorine-Free Bleaching of Soda Rapeseed Pulp
Original language description
Soda pulp cooked from rapeseed straw (Brassica napus L. convar. napus, in our case winter line genotype Labrador) was subjected to a four-stage elemental chlorine-free bleaching under laboratory conditions. Chlorine dioxide and hydrogen peroxide were used as bleaching chemicals. For comparison, kraft pulp cooked from a blend of spruce and pine was subjected to the same bleaching sequence D0 EP D1 P. The initial kappa number of both pulps was 18.8. After each bleaching step, the optical and strength properties were measured. The preliminary results showed that bleachability of soda rapeseed pulp was lower in comparison with kraft softwood pulp for D0EPD1P bleaching sequence. The brightness increment of 43.2 % ISO and 48.5 % ISO was achieved for soda and kraft pulps, respectively. However, the bleaching had a negative impact on the zero-span breaking length which decreased from 3.9 km for unbleached soda pulp to 3.6 km for bleached soda pulp.
Czech name
—
Czech description
—

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 4th International Conference on Chemical Technology
ISBN
978-80-86238-94-4
ISSN
2336-811X
e-ISSN
—
Number of pages
6
Pages from-to
354-359
Publisher name
Česká společnost průmyslové chemie
Place of publication
Praha
Event location
Mikulov
Event date
Apr 25, 2016
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
—

Similar results(10)