Inventory audit notice: TAPPI Press orders will not be processed from August 21–28 during our fiscal year-end inventory audit. Orders placed during this time will ship starting August 31, in the order received. Normal payment processing also resumes August 31.

Thanks for your patience — this helps us serve our members better.

Search

Use the search bar or filters below to find any TAPPI product or publication.

Showing 431–440 of 2,025 results (Duration : 0.013 seconds)

Filters

Industry

Topics

Content Type

Publications

Level of Knowledge

Committees

Collections

Journal articles
Open Access
2015 TAPPI Centennial Celebration, TAPPI JOURNAL 2015 March - 15MAR100

2015 TAPPI Centennial CelebrationHonoring Our Past, Inspiring Our Future, TAPPI JOURNAL March 2015

Journal articles
Open Access
Review of currently available technology for the conversion of woody biomass o value-added products 15MAR160

Review of currently available technology for the conversion of woody biomass to value-added products, TAPPI JOURNAL March 2015

Journal articles
Open Access
Flippr° â?? an industrial research project in Austria, TAPPI JOURNAL 2015 March - 15MAR209

Flippr° â?? an industrial research project in Austria, TAPPI JOURNAL 2015 March - 15MAR209

Journal articles
Open Access
Hardwood pulping kinetics of bulk and residual phases, TAPPI JOURNAL October 2015

Hardwood pulping kinetics of bulk and residual phases, TAPPI JOURNAL October 2015

Journal articles
Open Access
Quantification of lignin-carbohydrate complexes in hardwood pulps, Part 2: Effects of bleaching chemicals, TAPPI JOURNAL October 2015

Quantification of lignin-carbohydrate complexes in hardwood pulps, Part 2: Effects of bleaching chemicals, TAPPI JOURNAL October 2015

Journal articles
Magazine articles
Open Access
Utilization of palm fiber as papermaking materials: Microscopic structure and chemical pulping, TAPPI Journal October 2022

ABSTRACT: The microscopic structure and pulping properties of palm fiber were explored. Soda cooking and sulfate cooking were conducted and compared in terms of physical strength of the obtained pulps. Sulfate pulp showed better performance than soda pulp, as indicated by the 23% higher tensile index, 49% higher tear index, and 36% higher burst index. To further elevate physical strength, long fibered pulp (LFP), namely commercial softwood sulfate pulp, was mixed with sulfate pulp of palm fiber at levels from 20% to 50%. At the blend level of 50%, tensile index of 52.13 Nœm/g, tear index of 15.63 mNœm2/g, and burst index of 3.42 kPaœm2/g were attained. The lignin in spent liquor from pulping was isolated and characterized. Soda lignin of palm fiber was mainly composed of guaiacyl and syringyl units, and showed weight-average molecular weight of 3616 g/mol.

Journal articles
Magazine articles
Open Access
Preparing prehydrolyzed kraft dissolving pulp via phosphotungstic acid prehydrolysis from grape branches, TAPPI Journal January 2022

ABSTRACT: Dissolving pulp was successful prepared via phosphotungstic acid (PTA) prehydrolysis kraft (PHK) cooking followed by an elementary chlorine-free (ECF) bleaching process from grape branches. The effects of prehydrolysis temperature, reaction time, and PTA concentration that potentially affect the quality of dissolving pulp product on chemical components of pulp were studied via an orthogonal experiment. The structure of lignin was activated during the PTA prehydrolysis phase, and lignin was easily removed during the following cooking process. Thus, relatively mild conditions (140°C, 100 min) can be used in the cooking process. During the prehydrolysis phase, temperature exhibited the most significant influence on the cellulose purity of the obtained pulp fiber, followed by reaction time and PTA concentration. The optimized prehydrolysis conditions were as follows: prehydrolysis temperature, 145°C; reaction time, 75 min; and PTA concentration, 1 wt%. Whether the excessively high prehydrolysis temperature or prolonging the reaction time did not favor the retention of long chain cellulose, the delignification selectivity for the cooking process could not be further improved by excessive PTA loading. Under these prehydrolysis conditions, 94.1% and 29.0% for a-cellulose content and total yield could be achieved after the given cooking and bleaching conditions, respectively. Moreover, the chemical structure and crystal form of cellulose were scarcely changed after PTA prehydrolysis, which could be confirmed by results from Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). PTA prehydrolysis could be considered as an alternative method for preparing PHK dissolving pulp under relatively mild cooking conditions.

Journal articles
Magazine articles
Open Access
Considerations in managing wastewater odor at pulp and paper operations, TAPPI Journal March 2022

ABSTRACT: Many pulp and paper mills are, at least periodically, faced with the release of odors that can migrate offsite and be considered a nuisance by nearby residents. At chemical pulp mills, perceptible odors associated with reduced sulfur compounds (RSCs) are common, many of which are highly perceptible owing to their low odor thresholds. As releases of RSCs and other odorous substances from production processes are progressively controlled, the proportional contribution from wastewater treatment systems to areal odors can increase. This review paper summarizes important fundamentals of odor generation, source identification, and control. Common odorous substances are identified, and mechanisms for their generation are summarized. Approaches for measuring odorous substances are detailed to enable more effective management, and various odor control strategies are discussed.

Magazine articles
Open Access
Views from the top: ceos offer global perspectives on the pulp and paper industries, TAPPI JOURNAL, August 1999, Vol. 82(8)

Views from the top: ceos offer global perspectives on the pulp and paper industries, TAPPI JOURNAL, August 1999, Vol. 82(8)

Journal articles
Open Access
Evaluation of the us epa recommended approach to predicting air emissions from pulp and paper industry landfills, TAPPI JOURNAL, December 1999, Vol. 82(12)

Evaluation of the us epa recommended approach to predicting air emissions from pulp and paper industry landfills, TAPPI JOURNAL, December 1999, Vol. 82(12)

Inside this Section