publication . Article . 2010

PROCESS OPTIMIZATION OF TETRA ACETYL ETHYLENE DIAMINE ACTIVATED HYDROGEN PEROXIDE BLEACHING OF POPULUS NIGRA CTMP

Qiang Zhao; Junwen Pu; Shulei Mao; Guibo Qi;
Open Access English
  • Published: 01 Feb 2010 Journal: BioResources (issn: 1930-2126, Copyright policy)
  • Publisher: North Carolina State University
Abstract
To enhance the bleaching efficiency, the activator of tetra acetyl ethylene diamine (TAED) was used in conventional H2O2 bleaching. The H2O2/TAED bleaching system can accelerate the reaction rate and shorten bleaching time at relative low temperature, which can reduce the production cost. In this research, the process with hydrogen peroxide activated by TAED bleaching of Populus nigra chemi-thermo mechanical pulp was optimized. Suitable bleaching conditions were confirmed as follows: pulp consistency 10%, bleaching temperature 70oC, bleaching time 60 min when the charge of H2O2 was 4%, NaOH charge 2%, and molar ratio of TAED to H2O2 0.3. The pulp brightness gain...
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Subjects
free text keywords: Populus nigra, H2O2, Bleaching, TAED, FTIR, Biotechnology, TP248.13-248.65
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BioResources
Article . 2010
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