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ASPI News, Paper360º November/December 2019
ASPI News, Paper360º November/December 2019
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
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Editorial: Multifaceted research at the University of Maine
Editorial: Multifaceted research at the University of Maine, TAPPI JOURNAL September 2017
Journal articles
Magazine articles
Addition of corn stover arabinoxylan into hardwood during pu
Addition of corn stover arabinoxylan into hardwood during pulping for improved physical properties, TAPPI JOURNAL September 2017
Journal articles
Magazine articles
SetPoint: What Will We Build Tomorrow?, Paper360º September/
SetPoint: What Will We Build Tomorrow?, Paper360º September/October 2017
Journal articles
Magazine articles
The PPI Top 100, Paper360º September/October 2017
The PPI Top 100, Paper360º September/October 2017
Journal articles
Magazine articles
TAPPI Keynoters on Bioproducts and Sustainability, Paper360º
TAPPI Keynoters on Bioproducts and Sustainability, Paper360º September/October 2017
Journal articles
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Partnering with Paper for Sustainable Biomaterials, Paper360
Partnering with Paper for Sustainable Biomaterials, Paper360º September/October 2017
Journal articles
Magazine articles
The Italian GapCon Tissue S.r.l. Joines the PAPCEL Group of
The Italian GapCon Tissue S.r.l. Joines the PAPCEL Group of Companies, Paper360º September/October 2017
Journal articles
Magazine articles
Papermaking Best Practices With Vacuum-Dewatering Systems: P
Papermaking Best Practices With Vacuum-Dewatering Systems: Part 1, Paper360º September/October 2017