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Journal articles
Hydrogen peroxide and caustic soda: Dancing with a dragon while bleaching,TAPPI Journal December 2024
Peter W. Hart, Carl Houtman, and Kilby Hirth | TAPPI J. 12(7): 59(2013) - ABSTRACT: When hydrogen peroxide is mixed with caustic soda, an auto-accelerating reaction can lead to generation of significant amounts of heat and oxygen. On the basis of experiments using typical pulp mill process concentration and temperatures, a relatively simple kinetic model has been developed. Evaluation of these model results reveals that hydrogen peroxide-caustic soda systems are extremely sensitive to hydrogen peroxide:caustic soda ratio, transition metal contamination, and temperature. Small changes in initial conditions can result in a closed system becoming explosive. Analysis of model results was used to develop guidelines for safer application of hydrogen peroxide in a mill setting.
Journal articles
Production of high yield bleached hardwood kraft pulp: Breaking the kraft pulp yield barrier,TAPPI Journal December 2024
Author: Peter W. Hart | TAPPI J. 10(9): 37(2011) - ABSTRACT: A modified kraft pulping process has been developed that successfully breaks the traditional hard-wood kraft pulp yield barrier. The process produces fully bleached, high brightness hardwood kraft pulp with a yield of greater than 53% on wood. Details of the development and processing steps, along with various recovery cycle impacts, are discussed.
Journal articles
Teak extract as a catalyst for the pulping of loblolly pine, TAPPI JOURNAL, May 1998, Vol. 81(5)
Teak extract as a catalyst for the pulping of loblolly pine, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Caroate delignification part 4: the generation and role of hydroxyl radicals, TAPPI JOURNAL, May 1998, Vol. 81(5)
Caroate delignification part 4: the generation and role of hydroxyl radicals, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Development of an ozone-based tcf sequence for bleaching a hardwood alcell pulp, TAPPI JOURNAL, May 1998, Vol. 81(5)
Development of an ozone-based tcf sequence for bleaching a hardwood alcell pulp, TAPPI JOURNAL, May 1998, Vol. 81(5)
Journal articles
Observations of the bubble dynamics in a pulp suspension using flash x-ray radiography, TAPPI JOURNAL, November 1998, Vol. 81(11)
Observations of the bubble dynamics in a pulp suspension using flash x-ray radiography, TAPPI JOURNAL, November 1998, Vol. 81(11)
Journal articles
Design guidelines for continuous emissions monitors and predictive emissions monitors, TAPPI JOURNAL, March 1998, Vol. 81(3)
Design guidelines for continuous emissions monitors and predictive emissions monitors, TAPPI JOURNAL, March 1998, Vol. 81(3)
Journal articles
Improving industrial powerhouse operations with an energy management system, TAPPI JOURNAL, March 1998, Vol. 81(3)
Improving industrial powerhouse operations with an energy management system, TAPPI JOURNAL, March 1998, Vol. 81(3)
Journal articles
Agglomeration tendency of contaminants in recycled fibers, TAPPI JOURNAL, March 1998, Vol. 81(3)
Agglomeration tendency of contaminants in recycled fibers, TAPPI JOURNAL, March 1998, Vol. 81(3)
Journal articles
Production of dissolving pulp from recovered paper using enzymes, TAPPI JOURNAL, March 1998, Vol. 81(3)
Production of dissolving pulp from recovered paper using enzymes, TAPPI JOURNAL, March 1998, Vol. 81(3)