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Webinars
Modern Hydraulic Headboxes - Managing Expectations and Operations
This Webinar was hosted by the TAPPI Papermakers & Water Removal Committees on October 11, 2011. The seminar was available live to all members of the Papermakers, Water Removal, and young professionals Committee.
Webinars
Increasing Paper Machine Agility with a Novel Grade Change Concept
A narrow grade mix and long grade runs were once common. Not today. Most machines make a wider set of products with many grade changes.
Webinars
Corona and Plasma Surface Treatments The Opportunities
Corona and Plasma Surface Treatments The Opportunities This webinar addresses the roots of surface treatment challenges for polymeric, metallic, and composite materials, and identifies the corona and
Webinars
Binders - Latex Butadiene-Based Latex Binders
This Webinar was hosted by the TAPPI Nonwovens Engineers & Technologists Division and Binders & Additives Community on July 26, 2012.
Webinars
Microbes in Fresh and Recycled Water Systems
Linda Robertson started her career in the paper industry in 1974 at Weyerhaeuser as a microbiologist/microscopist, moving to Nalco’s Paper R&D group in 1988 and joining Nalco’s Worldwide Technical
Courses
Events
IDCON Reliability and Maintenance Conference
This conference is THE How-To Conference for Maintenance and Operations professionals in the processing industries.
Courses
Events
2027 Kraft Recovery Operations Course
One of TAPPI's highest rated, longest running events! You'll learn ways to improve pulp production efficiency, minimize operating costs and reduce environmental impact. This course is designed for pulp mill operations personnel.
Journal articles
Anthraquinone pulping of kudzu (pueraria lobata), TAPPI Journal December 2024
Authors: Peter W. Hart, Brian N. Brogdon, and Jeffrey S. Hsieh | TAPPI J. 76(4): 162(1993) - ABSTRACT: Kudzu was pulped underpulping conditions for kraft, kraft-AQ, soda, and soda-AQ processes. Anthraquinone addition increlased the carbohydrate content of the brownstock pulp for all cooks. Anthraquinone addition lowered the broumrtock kappa number while reducing the chemical demand. Brownstock ~om selected pulping sequences was tested to determine tear strength, tensile strength, burst strength, and~eeness. The broumstock was also subjected to a CED bleaching sequence. For the bleached pulps, viscosity and average fiber length were determined.
Conference papers
Recent advances in the commercialization of NIR (near-infrar
ABSTRACT: Near-infrared (NIR) spectroscopy techniques have held the promise of a new generation of online and lab based process analyzers for the pulping and recovery areas for some years now. NIR technology has been shown to be a quite effective method for the analysis of white, green and black liquors by multiple investigators. NIR reflectance techniques have been shown to be effective in predicting yield and kappa number in pulp samples. Recently, commercial analyzers have been developed for green liquor analysis on the dissolving tank, white and green liquor analysis in the recaust area and black liquor analysis on batch and continuous digesters. These analyzers are currently running at different mill sites and are proving to be superior to current technology choices for these applications. A commercial online and lab based yield and kappa number analyzer are currently being developed based on NIR reflectance techniques. Results will be presented on the performance of these analyzers relating to accuracy, maintenance and total installed cost. Other potential NIR applications in the pulping and recovery area will also be addressed.