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Totally Chlorine Free Bleaching of Eucalyptus globulus Dissolving Pulps Delignified with Peroxyformic Acid and Formic Acid

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Published/Copyright: June 1, 2005
Holzforschung
From the journal Volume 56 Issue 1

Summary

Eucalyptus globulus wood samples were delignified in two-stage treatments carried out in media made up of formic acid, water and hydrogen peroxide under selected operational conditions. The pulps were subjected to Totally Chlorine Free (TCF) bleaching sequences. Alkaline treatments, oxygen delignification, ozone stages and treatments with peroxyacids were assayed in order to reach the target values for dissolving pulps. Under the best conditions, a fully bleached pulp (91.6% ISO brightness) with SCAN viscosity of 649 ml/g and favourable molar mass distribution was obtained.

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Published Online: 2005-06-01
Published in Print: 2002-02-06

Copyright © 2002 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. Transverse Young's Moduli and Cell Shapes in Coniferous Early Wood
  2. Cytochemical Localization of Hydrogen Peroxide Production during Wood Decay by Brown-Rot Fungi Tyromyces palustris and Coniophora puteana
  3. The Further Chemistry of Ellagic Acid II. Ellagic Acid and Water-Soluble Ellagates as Metal Precipitants
  4. Investigation on Fossil Barks from an Arctic Canadian Site Constituted by a Multiple Level Tertiary Fossil Forest 45 Million Years Old
  5. Moisture Content and Extractive Materials in Maritime Pine Wood by Low Field 1H NMR
  6. Ozone Oxidation and Structural Features of an Almond Shell Lignin Remaining after Furfural Manufacture
  7. FTIR Microscopy and Ultrastructural Investigation of Silylated Solid Wood
  8. Nondestructive Analysis of Lignin Structure by NMR Spectroscopy of Specifically 13C-Enriched Lignins. Part 1. Solid State Study of Ginkgo Wood
  9. Effect of High-Temperature Defibration on the Chemical Structure of Hardwood
  10. Totally Chlorine Free Bleaching of Eucalyptus globulus Dissolving Pulps Delignified with Peroxyformic Acid and Formic Acid
  11. Effect of the α- and γ-Hydroxyls on the Alkaline Hydrolysis Rate of Nonphenolic β-0-4 Lignin Diastereomers
  12. The Incorporation of 3,4-Dichloroaniline, a Pesticide Metabolite, into Dehydrogenation Polymers of Coniferyl Alcohol (DHPs). Part 2. Identification of a Dimeric Adduct
  13. Reactions of Lignin with Cyanamide Activated Hydrogen Peroxide. Part 3. The Degradation of Pine Kraft Lignin
  14. Kinetics of ASAM and Kraft Pulping of Eucalypt Wood (Eucalyptus globulus)
  15. Adsorption of Liquids and Swelling of Wood. Part VI. Saturated Amounts and Some Thermodynamic Values of Adsorption
  16. The Analysis of Dimensional Changes Due to Chemical Treatments and Water Soaking for Hinoki (Chamaecyparis obtusa) Wood
  17. Using UV-Microscopy to Study Diffusion of Melamine-Urea-Formaldehyde Resin in Cell Walls of Spruce Wood
  18. Volatile Organic Compounds Emissions from Particleboard Veneered with Decorative Paper Foil
https://doi.org/10.1515/HF.2002.010

Articles in the same Issue

  1. Transverse Young's Moduli and Cell Shapes in Coniferous Early Wood
  2. Cytochemical Localization of Hydrogen Peroxide Production during Wood Decay by Brown-Rot Fungi Tyromyces palustris and Coniophora puteana
  3. The Further Chemistry of Ellagic Acid II. Ellagic Acid and Water-Soluble Ellagates as Metal Precipitants
  4. Investigation on Fossil Barks from an Arctic Canadian Site Constituted by a Multiple Level Tertiary Fossil Forest 45 Million Years Old
  5. Moisture Content and Extractive Materials in Maritime Pine Wood by Low Field 1H NMR
  6. Ozone Oxidation and Structural Features of an Almond Shell Lignin Remaining after Furfural Manufacture
  7. FTIR Microscopy and Ultrastructural Investigation of Silylated Solid Wood
  8. Nondestructive Analysis of Lignin Structure by NMR Spectroscopy of Specifically 13C-Enriched Lignins. Part 1. Solid State Study of Ginkgo Wood
  9. Effect of High-Temperature Defibration on the Chemical Structure of Hardwood
  10. Totally Chlorine Free Bleaching of Eucalyptus globulus Dissolving Pulps Delignified with Peroxyformic Acid and Formic Acid
  11. Effect of the α- and γ-Hydroxyls on the Alkaline Hydrolysis Rate of Nonphenolic β-0-4 Lignin Diastereomers
  12. The Incorporation of 3,4-Dichloroaniline, a Pesticide Metabolite, into Dehydrogenation Polymers of Coniferyl Alcohol (DHPs). Part 2. Identification of a Dimeric Adduct
  13. Reactions of Lignin with Cyanamide Activated Hydrogen Peroxide. Part 3. The Degradation of Pine Kraft Lignin
  14. Kinetics of ASAM and Kraft Pulping of Eucalypt Wood (Eucalyptus globulus)
  15. Adsorption of Liquids and Swelling of Wood. Part VI. Saturated Amounts and Some Thermodynamic Values of Adsorption
  16. The Analysis of Dimensional Changes Due to Chemical Treatments and Water Soaking for Hinoki (Chamaecyparis obtusa) Wood
  17. Using UV-Microscopy to Study Diffusion of Melamine-Urea-Formaldehyde Resin in Cell Walls of Spruce Wood
  18. Volatile Organic Compounds Emissions from Particleboard Veneered with Decorative Paper Foil
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