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
Electrochemical Removal of Color and Toxicity from Bleached
Electrochemical Removal of Color and Toxicity from Bleached Kraft Effluents, 1994 Environmental Conference Proceedings
Journal articles
Magazine articles
Laboratory method for determining the source of brightness loss at a southern United States bleached paperboard mill, TAPPI Journal October 2018
Laboratory method for determining the source of brightness loss at a southern United States bleached paperboard mill, TAPPI Journal October 2018
PCEI9117
Role of Quality Implementation in Mill Decision Systems, 1991 Process Control, Electrical & Info. Conference Proceedings
Journal articles
Characterization of Chemical Pulp Fines, TAPPI JOURNAL, February 2006, Vol. 5(2) (6.30 KB)
Characterization of Chemical Pulp Fines, TAPPI JOURNAL, February 2006, Vol. 5(2) (6.30 KB)
Journal articles
Extended usage of xylanase enzyme to enhance the bleaching of softwood kraft pulp, TAPPI JOURNAL, January 2006, Vol. 5(1) (164 KB)
Extended usage of xylanase enzyme to enhance the bleaching of softwood kraft pulp, TAPPI JOURNAL, January 2006, Vol. 5(1) (164 KB)
Journal articles
The recyclability of papers treated with environmentally friendly PET polyesters, TAPPI JOURNAL, January 2006, Vol. 5(1) (332 KB)
The recyclability of papers treated with environmentally friendly PET polyesters, TAPPI JOURNAL, January 2006, Vol. 5(1) (332 KB)
Journal articles
Influence of the Combined Use of Cationic Starch and Cationi
Influence of the Combined Use of Cationic Starch and Cationic Polyacrylamideon the Quality of Printing Paper, TAPPI JOURNAL, June 2006, Vol. 5(6) (394 KB)
Journal articles
Development of Predictive Oxygen Delignification Models Usin
Development of Predictive Oxygen Delignification Models Using Kinetic Expressions and Neural Networks, TAPPI JOURNAL, May 2006, Vol. 5(5) (151 KB)
Journal articles
Magazine articles
Synthesis of filtrate reducer from biogas residue and its application in drilling fluid, TAPPI Journal March 2020
ABSTRACT: Biogas residues (BR) containing cellulose and lignin are produced with the rapid development of biogas engineering. BR can be used to prepare the filtrate reducer of water-based drilling fluid in oilfields by chemical modification. BR from anaerobically fermenting grain stillage was alkalized and etherified by caustic soda and chloroacetic acid to prepare filtrate reducer, which was named as FBR. The long-chain crystalline polysaccharides were selected as dispersing agents (DA), and the water-soluble silicate was used as the cross-linking agent. After the hot rolling of FBR in saturated saltwater base mud for 16 h at 120°C, the filtration loss was increased from 7.20 mL/30 min before aging to 8.80 mL/30 min after aging. Compared with the commercial filtrate reducers, FBR had better tolerance to high temperature and salt, and lower cost.
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.