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Journal articles
Magazine articles
Open Access
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
Open Access
The kraft pulping properties of Canadian red and sugar maple, Solutions! & TAPPI JOURNAL, June 2003, Vol. 2(6) (823KB)

The kraft pulping properties of Canadian red and sugar maple, Solutions! & TAPPI JOURNAL, June 2003, Vol. 2(6) (823KB)

Journal articles
Open Access
Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)

Evaluation of a laser-optical resin particle counter, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (239KB)

Journal articles
Open Access
A novel device to measure pulp fiber hydrodynamics, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (225KB)

A novel device to measure pulp fiber hydrodynamics, Solutions! & TAPPI JOURNAL, March 2003, Vol. 2(3) (225KB)

Journal articles
Open Access
Monitoring the pH and conductivity of dielectric pulps using the ISO and IEC Standard Guidelines, TAPPI JOURNAL, March 2003, Vol. 2(3) (87KB)

Monitoring the pH and conductivity of dielectric pulps using the ISO and IEC Standard Guidelines, TAPPI JOURNAL, March 2003, Vol. 2(3) (87KB)

Journal articles
Open Access
On-site aerobic treatment at high and varying process water temperatures, TAPPI JOURNAL, Online Exclusive, May 2003, Vol. 2(5) (248KB)

On-site aerobic treatment at high and varying process water temperatures, TAPPI JOURNAL, Online Exclusive, May 2003, Vol. 2(5) (248KB)

Journal articles
Open Access
A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)

A review of gas flows in fiber suspensions, TAPPI JOURNAL, Online Exclusive, November 2003, Vol. 2(11) (775KB)

Journal articles
Open Access
Spectroscopic characterization of extractives isolated with MTBE from straws, TAPPI JOURNAL, November 2003, Vol. 2(11) (130KB)

Spectroscopic characterization of extractives isolated with MTBE from straws, Solutions! & TAPPI JOURNAL, November 2003, Vol. 2(11) (130KB)

Journal articles
Open Access
Recovery of water-soluble acetylgalactoglucomannans from mechanical pulp of spruce, TAPPI JOURNAL, November 2003, Vol. 2(11) (145KB)

Recovery of water-soluble acetylgalactoglucomannans from mechanical pulp of spruce, Solutions! & TAPPI JOURNAL, November 2003, Vol. 2(11) (145KB)

Journal articles
Open Access
Measurements of pressure pulses from a solid core screen rotor, TAPPI JOURNAL, October 2003, Vol. 2(10) (336KB)

Measurements of pressure pulses from a solid core screen rotor, Solutions! & TAPPI JOURNAL, October 2003, Vol. 2(10) (336KB)

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