Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Collections
Journal articles
Magazine articles
Nano-magnesium oxide as hard template synthesis of lignin carbon-based solid acids and its application for cellulose hyrdrolysis, TAPPI JOURNAL January 2019
Nano-magnesium oxide as hard template synthesis of lignin carbon-based solid acids and its application for cellulose hyrdrolysis, TAPPI JOURNAL January 2019
Journal articles
Magazine articles
Fundamental molecular characterization and comparison of the O, D0, and E stage effluents from hardwood pulp bleaching, TAPPI Journal 2019
ABSTRACT: The present study characterized effluents from the O, D0, and E stages using nuclear magnetic reso-nance (NMR) and gel permeation chromatography (GPC) techniques to better understand the chemical nature of the dissolved organics formed from the bleaching of a high-yield hardwood kraft pulp. Understanding the structures and molecular weight distribution of these organics is the first step in developing methods to mitigate these contam-inates in the discharged effluents. The results indicated that the molecular weight distribution (MWD) of the dis-solved organics from oxygen delignification effluent is broader than those from D0 and E stage effluents. In addition, the O stage filtrate contained considerable amounts of lignin and xylan fragments, which showed its efficiency in removing such materials. The effluent from the D0 stage contained a lower amount of high molecular weight frag-ments and a higher amount of low molecular weight fragments versus the O-stage filtrate. Aromatic structures were nearly absent in the D0 stage filtrate, but the degraded organic material, presumably from oxidized lignin, contained olefinic (C=C) and carbonyl (C=O) functional groups. Furthermore, higher molecular weight fragments were detected in the E-stage effluent, presumably due to the extensive solubilization and removal of the oxidized lignin generated from the D0 pulp.
Journal articles
Magazine articles
Editorial: TAPPI Journal 2018 Best Research Paper delves deeper into press section rewet to address drying efficiency, TAPPI Journal March 2019
ABSTRACT: TAPPI and the TAPPI Journal (TJ) Editorial Board would like to congratulate the authors of the 2018 TAPPI Journal Best Research Paper Award: J. David “Dave” McDonald and Richard J. “Dick” Kerekes. Their paper, “Rewet in wet pressing of pa-per,” appeared on p. 479 of the September 2018 issue. This research was recognized by the Editorial Board for its in-novation, creativity, scientific merit, and clear expression of ideas.
Journal articles
Magazine articles
Problems Solved: Tracking True for Success, Paper360º March/April 2019
Problems Solved: Tracking True for Success, Paper360º March/April 2019
Journal articles
Magazine articles
Getting to World Class Reliability & Maintenance with Visual Reminders, Paper360º March/April 2019
Getting to World Class Reliability & Maintenance with Visual Reminders, Paper360º March/April 2019
Journal articles
Magazine articles
VPI: Transforming the Way Rebuilds are Delivered, Paper360º
VPI: Transforming the Way Rebuilds are Delivered, Paper360º November/December 2017
Journal articles
Magazine articles
A Biorefinery Industry is Emerging, Paper360º September/Oct
A Biorefinery Industry is Emerging, Paper360º September/October 2017
Journal articles
Magazine articles
RISI’s 2017 Latin American CEO of the Year: An interview wi
RISI’s 2017 Latin American CEO of the Year: An interview with Walter Schalka, Suzano, Paper360º September/October 2017
Journal articles
Magazine articles
Ready to Compete for Another Century, Paper360º September/Oc
Ready to Compete for Another Century, Paper360º September/October 2017
Journal articles
Magazine articles
Monitoring the free lime content in lime mud using zeta potential, TAPPI JOURANL April 2018
Monitoring the free lime content in lime mud using zeta potential, TAPPI JOURANL April 2018