Bleaching of Soda Rapeseed Pulp with Chelation and Acid Stages

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912943" target="_blank" >RIV/00216275:25310/18:39912943 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Bleaching of Soda Rapeseed Pulp with Chelation and Acid Stages
Original language description
Soda pulp cooked from rapeseed straw was subjected to the totally chlorine-free bleaching using hydrogen peroxide and peractic acid as bleaching agents. The five-stage bleaching sequence, Q1Q2EpPaaP, containing two chelation stages, as well as four-stage sequence, AEpPaaP, with an acidic stage were applied to investigate the properties of bleached soda pulp, namely its brightness and tensile strength. For comparison, once-dried kraft softwood pulp, as well as never-dried oxygen-predelignified kraft softwood pulp and sulphite spruce pulp were bleached under the same process conditions. The results obtained showed that totally chlorine-free bleaching did not bring the sufficient bleaching effect for soda rapeseed pulp. The brightness of 54 % ISO achieved for the AEpPaaP bleaching sequence was lower comparing to that for kraft and sulphite pulps.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
ŠVOČ 59 : 59th International Student´s Scientific Conference
ISBN
978-80-228-3058-4
ISSN
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e-ISSN
neuvedeno
Number of pages
12
Pages from-to
84-95
Publisher name
Technická univerzita vo Zvolene
Place of publication
Zvolen
Event location
Zvolen
Event date
May 10, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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