TOTALLY 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%2F18%3A39912909" target="_blank" >RIV/00216275:25310/18:39912909 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.17423/afx.2018.60.2.11" target="_blank" >http://dx.doi.org/10.17423/afx.2018.60.2.11</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17423/afx.2018.60.2.11" target="_blank" >10.17423/afx.2018.60.2.11</a>

Result language
angličtina
Original language name
TOTALLY CHLORINE-FREE BLEACHING OF SODA RAPESEED PULP
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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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20502 - Paper and wood

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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