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Journal articles
Open Access
The hyperbolic theory of light scattering, tensile strength, and density in paper, TAPPI JOURNAL November 2011

The hyperbolic theory of light scattering, tensile strength, and density in paper, TAPPI JOURNAL November 2011

Journal articles
Open Access
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.

Journal articles
Black liquor gasification with direct Causticization using titanates in a Pressurized entrained-flow reactor. part i: kinetics of the causticization reaction , Journal of Pulp and Paper Science, April 2003, Vol. 29(4) (433KB)

Black liquor gasification with direct Causticization using titanates in a Pressurized entrained-flow reactor. part i: kinetics of the causticization reaction , Journal of Pulp and Paper Science, April 2003, Vol. 29(4) (433KB)

Journal articles
Black liquor gasification with direct causticization using titanates in a pressurized entrained-flow reactor. part ii: carbon and carbon species transitions, Journal of Pulp and Paper Science, October 2003, Vol. 29(10) (616KB)

Black liquor gasification with direct causticization using titanates in a pressurized entrained-flow reactor. part ii: carbon and carbon species transitions, Journal of Pulp and Paper Science, October 2003, Vol. 29(10) (616KB)

Journal articles
The Challenges of Recycled Furnish in the Manufacture of Premium Tissue Products, PaperCon 2014

The Challenges of Recycled Furnish in the Manufacture of Premium Tissue Products, PaperCon 2014

Journal articles
Open Access
Offset ink tack and rheology correlation part 2: determining in real time the solids content of ink-on-paper using the ink tack force-time integral, TAPPI JOURNAL, Online Exclusive, July 2003, Vol. 2(7) (267KB)

Offset ink tack and rheology correlation part 2: determining in real time the solids content of ink-on-paper using the ink tack force-time integral, TAPPI JOURNAL, Online Exclusive, July 2003, Vol. 2(7) (267KB)

Journal articles
Open Access
Facile preparation of nanofiller-paper using mixed office paper without deinking, TAPPI JOURNAL 2015 March - 15MAR167

Facile preparation of nanofiller-paper using mixed office paper without deinking, TAPPI JOURNAL March 2015

Journal articles
Open Access
Anthraquinone pulping of kudzu (pueraria lobata), TAPPI JOUR

Author: Peter W. Hart | 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.

Journal articles
Open Access
89JUN163

The influence of chlorine ratio and oxygen bleaching on the formation of PCDFs and PCDDs in pulp bleaching - Part 2: a full mill study, TAPPI JOURNAL June 1989

Journal articles
Open Access
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.