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Magazine articles
Understanding the risks and rewards of using 50% vs. 10% strength peroxide in pulp bleach plants, TAPPI Journal November 2018
Authors: Alan W. Rudie and Peter W. Hart | ABSTRACT: The use of 50% concentration and 10% concentration hydrogen peroxide were evaluated for chemical and mechanical pulp bleach plants at storage and at point of use. Several dangerous occurrences have been documented when the supply of 50% peroxide going into the pulping process was not stopped during a process failure. Startup conditions and leaking block valves during maintenance outages have also contributed to explosions. Although hazardous events have occurred, 50% peroxide can be stored safely with proper precautions and engineering controls. For point of use in a chemical bleach plant, it is recommended to dilute the peroxide to 10% prior to application, because risk does not outweigh the benefit. For point of use in a mechanical bleach plant, it is recommended to use 50% peroxide going into a bleach liquor mixing system that includes the other chemicals used to maintain the brightening reaction rate. When 50% peroxide is used, it is critical that proper engineering controls are used to mitigate any risks.
Journal articles
Factors contributing to improved environmental performance in the Finnish kraft pulping industry, TAPPI JOURNAL, September 2007
Factors contributing to improved environmental performance in the Finnish kraft pulping industry, TAPPI JOURNAL, September 2007
Journal articles
Performance of a final hydrogen peroxide stage in the ECF bleaching of Eucalypt DOEOPD1 Kraft Pulps
Performance of a final hydrogen peroxide stage in the ECF bleaching of Eucalypt D0EOPD1 kraft pulps, TAPPI JOURNAL, August 2008
Journal articles
Development of a Jacobian Module for Advanced Pulp and Paper Simulation and Control, TAPPI JOURNAL January 2009
Development of a Jacobian Module for Advanced Pulp and Paper Simulation and Control, TAPPI JOURNAL January 2009
Journal articles
The Significance of Celocity in Black Liquor Spraying, TAPPI JOURNAL January 2009
The Significance of Celocity in Black Liquor Spraying, TAPPI JOURNAL January 2009
Journal articles
Retaining Surface Fibrillation of Wet-Beaten Wood Pulp in the Dry State, TAPPI JOURNAL July 2009
Retaining Surface Fibrillation of Wet-Beaten Wood Pulp in the Dry State, TAPPI JOURNAL July 2009
Journal articles
Highly Substituted Cationic Starch as an Anionic Trash Catcher for High-Yield Pulp, TAPPI JOURNAL July 2009
Highly Substituted Cationic Starch as an Anionic Trash Catcher for High-Yield Pulp, TAPPI JOURNAL July 2009
Journal articles
Removal of COD and color loads in bleached kraft pulp effluents using ozone, TAPPI JOURNAL June 2009
Removal of COD and color loads in bleached kraft pulp effluents using ozone, TAPPI JOURNAL June 2009
Journal articles
Seasonal Variations in Wood: Percieved and Rea Impacts on Pulp Yield, TAPPI JOURNAL March 2009
Seasonal Variations in Wood: Percieved and Rea Impacts on Pulp Yield, TAPPI JOURNAL March 2009
Journal articles
Effects of Chloride, Potassium, and Sulfate on the Causticizing Reaction in the Kraft Recovery Process, TAPPI JOURNAL March 2009
Effects of Chloride, Potassium, and Sulfate on the Causticizing Reaction in the Kraft Recovery Process, TAPPI JOURNAL March 2009