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Editorial: 2018 TAPPI Journal features diverse content, TAPPI Journal November 2018

Editorial: 2018 TAPPI Journal features diverse content, TAPPI Journal November 2018

Journal articles
Magazine articles
Open Access
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
Magazine articles
Open Access
Using multistage models to evaluate how pulp washing after the first extraction stage impacts elemental chlorine-free bleach demand, TAPPI Journal November 2018

Using multistage models to evaluate how pulp washing after the first extraction stage impacts elemental chlorine-free bleach demand, TAPPI Journal November 2018

Journal articles
Magazine articles
Open Access
Laboratory method for determining the source of brightness loss at a southern United States bleached paperboard mill, TAPPI Journal October 2018

Laboratory method for determining the source of brightness loss at a southern United States bleached paperboard mill, TAPPI Journal October 2018

Journal articles
Open Access
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
Open Access
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
Open Access
Gasification of Mixtures of Black Liquor and Secondary Sludge, TAPPI JOURNAL, March 2007

Gasification of Mixtures of Black Liquor and Secondary Sludge, TAPPI JOURNAL, March 2007

Journal articles
Open Access
Experimental Investigation of Black Liquor Pyrolysis Using Single Droplet TGA, TAPPI JOURNAL, May 2007

Experimental Investigation of Black Liquor Pyrolysis Using Single Droplet TGA, TAPPI JOURNAL, May 2007

Journal articles
Open Access
The polyelectrolyte behavior of randomly branched lignosulfonates, TAPPI JOURNAL , november 2007 07NOV10

The polyelectrolyte behavior of randomly branched lignosulfonates, TAPPI JOURNAL November 2007

Journal articles
Open Access
The hemicellulose composition of pulp fibers and their ability to endure mechanical treatment, TAPPI JOURNAL, October 2007

The hemicellulose composition of pulp fibers and their ability to endure mechanical treatment, TAPPI JOURNAL, October 2007

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