The state of the art in bleaching technology. VI. Technology on kraft pulp bleaching with hydrogenperoxide and ozone.
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Ragauskas Overview of Hexenurinic Acids on Pulp Bleaching Influence of Hexenuronic Acids on Kraft Bleaching
Over the past ten years there has been a research renaissance in hemicellulose chemistry as it applies to pulping and bleaching operations. Researchers have identified hemicelluloses as an important component influencing pulp yields, strength properties, and pulp bleachability. This report summarizes the research activities undertaken at IPST in the dues funded research consortium (DFRC) projec...
متن کاملKinetics of Ozone Bleaching of Eucalyptus Kraft Pulp and Factors Affecting the Properties of the Bleached Pulp
Ozone is a non-chlorine bleaching agent that can reduce pollution in the pulp bleaching stage. In this work the ozone bleaching of eucalyptus kraft pulp was performed as part of a kinetics study to explain factors affecting the properties of bleached pulp. The bleaching efficiency was closely related to the rates of mass transfer and self-decomposition, as well as the intensity of ozonation. Fo...
متن کاملmesuring the staff technology readiness, the case of a multi national chemical company operating in iran
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15 صفحه اولBehaviour of Residual Lignin in Kraft Pulp During Bleaching
of Gasification of Black Liquor Char by actions of Some Sulfur Compounds, Inorg. Steam, IEC Research 30(7): 1594 (1991). Chem. 22(22):3243 (1983). 26. DEARNALEY, R.I., KERRIDGE, D.H. and 27. ZOU, X., Recovery of Kraft Black Liquor ROGERS, D.J., Molten Lithium Sulfate-SoIncluding Direct Causticization, Ph.D. Metallurgical Trans. B 19B(2):73 (1988). Thesis, McGill Univ. (1991). 28. WYNNYCKYJ, J.R...
متن کاملEffluent Loads From Different ECF Bleaching Sequences Used In Hardwood Kraft Pulp Bleaching
Effluent loads from different traditional and emerging ECF bleaching sequences were investigated. Oxygen delignified Eucalyptus camaldulensis and Acacia mangium kraft pulps having similar kappa number, ca 12.0 were used in this study. Different ECF bleaching sequences were compared with reference sequence, D0EopD1 in terms of effluent load, such as AOX, COD and TOC. Depending on the nature of s...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1985
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.39.197