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Lessons From a 1,200 fps Mistake, Paper360º March/April 2019
Lessons From a 1,200 fps Mistake, Paper360º March/April 2019
Journal articles
Magazine articles
Navigator Cacia Optimizes Causticizing Process Targets, Paper360º March/April 2019
Navigator Cacia Optimizes Causticizing Process Targets, Paper360º March/April 2019
Journal articles
Magazine articles
Stora Enso Imatra Mills: Going With the Flow, Paper360º March/April 2019
Stora Enso Imatra Mills: Going With the Flow, Paper360º March/April 2019
Journal articles
Magazine articles
Is Your Preventive Maintenance Program Right for Your Plant?, Paper360º March/April 2019
Is Your Preventive Maintenance Program Right for Your Plant?, Paper360º March/April 2019
Journal articles
Magazine articles
Multiple recycling of paperboard: Paperboard characteristics and maximum number of recycling cycles— Part I: Multiple recycling of corrugated base paper, TAPPI Journal November 2019
ABSTRACT: Paper for recycling is an important fiber source for the production of corrugated base paper. The change in production capacity toward more and more packaging papers affects the composition of paper for recy-cling and influences the paper quality. This research project investigated the influence of the multiple recycling of five different corrugated base papers (kraftliner, neutral sulfite semichemical [NSSC] fluting, corrugating medium, testliner 2, and testliner 3) on suspen-sion and strength properties under laboratory conditions. The corrugated board base papers were repulped in a low consistency pulper and processed into Rapid-Köthen laboratory sheets. The sheets were then recycled up to 15 times in the same process. In each cycle, the suspension and the paper properties were recorded. In particular, the focus was on corrugated board-specific parameters, such as short-span compression test, ring crush test, corrugat-ing medium test, and burst. The study results indicate how multiple recycling under laboratory conditions affects fiber and paper properties.
Journal articles
Magazine articles
The solubility of calcium carbonate in green liquor handling systems, TAPPI Journal October 2019
ABSTRACT: The formation of hard calcite (CaCO3) scale in green liquor handling systems is a persistent problem in many kraft pulp mills. CaCO3 precipitates when its concentration in the green liquor exceeds its solubility. While the solubility of CaCO3 in water is well known, it is not so in the highly alkaline green liquor environment. A systematic study was conducted to determine the solubility of CaCO3 in green liquor as a function of temperature, total titratable alkali (TTA), causticity, and sulfidity. The results show that the solubility increases with increased temperature, increased TTA, decreased causticity, and decreased sulfidity. The new solubility data was incorporated into OLI (a thermodynamic simulation program for aqueous salt systems) to generate a series of CaCO3 solubility curves for various green liquor conditions. The results help explain how calcite scale forms in green liquor handling systems.
Journal articles
Magazine articles
The Paper360° TOP 75, Paper360º September/October 2019
The Paper360° TOP 75, Paper360º September/October 2019
Journal articles
Magazine articles
IIoT for R&M: The Real Struggle, Paper360º September/October 2019
IIoT for R&M: The Real Struggle, Paper360º September/October 2019
Journal articles
Magazine articles
Why Are Foreign Companies Investing in North American Pulp and Paper?, Paper360º September/October 2019
Why Are Foreign Companies Investing in North American Pulp and Paper?, Paper360º September/October 2019
Journal articles
Magazine articles
Taison Group’s Twin PrimeLineSTs Bamboo Tigers, Tissue360º Spring/Summer 2019
Taison Group’s Twin PrimeLineSTs Bamboo Tigers, Tissue360º Spring/Summer 2019