Results 111 to 120 of about 91,381 (225)

Operating Experience of Lo-SolidsTM Cooking and ECF Bleaching

open access: yesJAPAN TAPPI JOURNAL, 1998
The Kushiro Mill of Nippon Paper Industries Co., Ltd. had semi-bleached Kraft line. In 1996, digester operation change new cooking technology called Lo-SolidsTM Cooking and constructed 3-stage bleached line, D-EOP-D sequence.This paper discribes operating experisence of digester and new fiber line.
openaire   +2 more sources

Characterisation of efficient ECF bleaching parameters of eucalyptus pulp

open access: yes, 2007
At present, bleached eucalyptus kraft pulp is globally the most widely used short fiber raw material in paper making. One of the most extended technologies to bleach eucalyptus pulp is the so called ECF-technology which uses chlorine dioxide rather than
Medina, Jose Antonio
core  

Enhancing dissolving pulp quality of mixed raw materials through pre-hydrolysis kraft-cooking: A study on Acacia crassicarpa and Terminalia catappa

open access: yesCommunications in Science and Technology
Acacia crassicarpa wood is widely used in Indonesia as a raw material for dissolving pulp (DP) by the kraft-cooking process. Given that Indonesia has a rich variety and abundance of cellulose-rich wood, it is deemed crucial to research alternative raw ...
Yusnimar Sahan   +7 more
doaj   +1 more source

Minimizing viscosity loss during totally chlorine-free bleaching of hardwood kraft pulp [PDF]

open access: yesBioResources, 2013
By applying increasing amounts of ozone (Z stage bleaching) on eucalyptus oxygen-delignified pulps, it was observed that both lignin and hexenuronic acids (HexA) are attacked early during the treatment. While the HexA were progressively removed, however,
Frédéric Pouyet   +3 more
doaj  

Influence of process variables of ECF Ep bleaching stage

open access: yes, 2009
Kraft pulp bleaching is difficult, since residual lignin does not dissolve in a single stage with chlorinated compound application. Multiple stages using a significant amount of reagents are necessary to obtain high levels of brightness. The inclusion of hydrogenperoxide in the last alkaline stage of the ECF (Elemental Chlorine Free) bleaching of kraft
Mendez, Claudia Marcela   +1 more
openaire   +2 more sources

MOLYBDENUM CATALYZED ACID PEROXIDE BLEACHING OF EUCALYPTUS KRAFT PULP

open access: yesBioResources, 2008
Molybdenum catalyzed peroxide bleaching (PMo Stage) consists of pulp treatment with hydrogen peroxide under acidic conditions in the presence of a molybdenum catalyst.
Marcos S. Rabelo   +4 more
doaj  

Effect of metal dopants on the electrochromic performance of hydrothermally-prepared tungsten oxide materials. [PDF]

open access: yesRSC Adv, 2023
Thummavichai K   +9 more
europepmc   +1 more source

REPLACEMENT OF SOFTWOOD KRAFT PULP WITH ECF-BLEACHED BAMBOO KRAFT PULP IN FINE PAPER

open access: yesBioResources, 2010
Non-wood fibers such as bamboo and wheat straw have been playing important roles in the pulp and paper industry in China. In this study an ECF-bleached bamboo kraft pulp was compared with a bleached softwood kraft pulp (NBSK) as the reinforcement pulp in
Guanglei Zhao   +4 more
doaj  

ECF and TCF bleaching of Saccharum officinerum-CO89003 bagasse soda-AQ pulp with alkali-thermo-tolerant crude xylanase from Coprinellus disseminatus SW-1 NTCC1165 [PDF]

open access: yesBioResources, 2012
An alkali-thermo-tolerant crude xylanase from Coprinellus disseminatus SW-1 NTCC1165 produced under solid-state fermentation conditions improves the brightness of sugarcane bagasse soda-AQ pulp by 7.3, 4.7, 6.1, and 8.2% in XODED, XOD(EOP)DP, OX(EOP)P ...
Swarnima Agnihotri   +2 more
doaj  

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