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Journal articles
Open Access
Hydrogen peroxide and caustic soda: Dancing with a dragon while bleaching, TAPPI JOURNAL July 2013

Authors: Peter W. Hart; Carl Houtman; and Kilby Hirth | 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
Open Access
Removal of silicon from green liquor with carbon dioxide in the chemical recovery process of wheat straw soda pulping, TAPPI JOURNAL March 2013

Removal of silicon from green liquor with carbon dioxide in the chemical recovery process of wheat straw soda pulping, TAPPI JOURNAL March 2013

Journal articles
Open Access
Effects of flashing on spray characteristics of splashplate nozzles, TAPPI JOURNAL May 2013

Effects of flashing on spray characteristics of splashplate nozzles, TAPPI JOURNAL May 2013

Journal articles
Open Access
Measurement of strains in a paper tensile specimen using computer vision and digital image correlation-Part 2: Tensile specimen test, TAPPI JOURNAL April 1988 88APR153

Measurement of strains in a paper tensile specimen using computer vision and digital image correlation-Part 2: Tensile specimen test, TAPPI JOURNAL April 1988

Journal articles
Open Access
The role of diffusion during initial delignification of alkaline pulping, TAPPI JOURNAL April 1988 88APR145

The role of diffusion during initial delignification of alkaline pulping, TAPPI JOURNAL April 1988

Journal articles
Open Access
Automatic winder slitter positioning using a programmable logic controller, TAPPI JOURNAL August 1988

Automatic winder slitter positioning using a programmable logic controller, TAPPI JOURNAL August 1988

Journal articles
Open Access
The use of proton NMR for pitch analysis-a case study, TAPPI JOURNAL August 1988

The use of proton NMR for pitch analysis-a case study, TAPPI JOURNAL August 1988

Journal articles
Open Access
Further comments on a visual study of pulp floc dispersion mechanisms, TAPPI JOURNAL 1988

Further comments on a visual study of pulp floc dispersion mechanisms, TAPPI JOURNAL 1988

Journal articles
Open Access
A rapid method for the qualitative analysis of plastic and "sticky" contaminants by pyrolysis-gas chromatography, TAPPI JOURNAL February 1988 88FEB109

A rapid method for the qualitative analysis of plastic and "sticky" contaminants by pyrolysis-gas chromatography, TAPPI JOURNAL February 1988

Journal articles
Open Access
Physical characteristics of pulps obtained from mesta (Hibiscus sabdariffa) plants of different ages, TAPPI JOURNAL February 1988 88FEB67

Physical characteristics of pulps obtained from mesta (Hibiscus sabdariffa) plants of different ages, TAPPI JOURNAL February 1988