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Journal articles
Magazine articles
Open Access
Mill experience of calcium carbonate scale formation in green liquor pipelines, TAPPI Journal August 2020

ABSTRACT: Experience of hard calcite (CaCO3) scale formation in green liquor pipelines at four kraft pulp mills was systematically investigated to determine if there is any correlation between the severity of the scaling problem at each mill and the design and operating conditions of its causticizing plant. The results show that the high degree of supersaturation of calcium ions (Ca2+) in the liquor is the main contributing factor. Mills that operate at a lower green liquor total titratable alkali (TTA), higher causticity, and a larger liquor temperature drop are more likely to produce a green liquor that is supersaturated with Ca2+, and thus experience more severe scaling problems. In order to minimize CaCO3 scaling, the green liquor handling equipment should be operated as steady as possible to avoid conditions that allow Ca2+ to be supersaturated. The strategies include minimizing variations in liquor TTA, insulating the green liquor pipelines to reduce temperature gradients, and adding lime mud to weak wash to provide seeds for precipitation to occur on mud particles instead of on metal substrate.

Journal articles
Open Access
Profiling the wood and pulping properties of southern pine thinning resources, TAPPI JOURNAL & Solutions! January 2005

Profiling the wood and pulping properties of southern pine thinning resources, TAPPI JOURNAL & Solutions! January 2005

Journal articles
Open Access
A useful equation for estimating the surface charge of pulp fibers, TAPPI JOURNAL May 2005, Vol. 4(5)

A useful equation for estimating the surface charge of pulp fibers, TAPPI JOURNAL May 2005, Vol. 4(5)

Journal articles
Open Access
Formation of sulfur-rich melt near the floor tubing of kraft recovery boilers, TAPPI JOURNAL, April 2002, Vol. 1(2) (192KB)

Formation of sulfur-rich melt near the floor tubing of kraft recovery boilers, TAPPI JOURNAL, April 2002, Vol. 1(2) (192KB)

Journal articles
Simultaneous and Rapid Analysis of Hydroxide, Sulphide and Carbonate in Kraft Liquors by Attenuated Total Reflection UV Spectroscopy, JOURNAL OF PULP AND PAPER SCIENCE: VOL. 28 NO. 4 APRIL 2002 [02APRJP105.pdf]

Simultaneous and rapid analysis of hydroxide, sulphide and carbonate in kraft liquors by attenuated total reflection uv spectroscopy, Journal of Pulp and Paper Science, April 2001, Vol. 28(4) (115KB)

Journal articles
Open Access
TJ web enhancements, TAPPI JOURNAL, August 2002, Vol. 1(6) (

TJ web enhancements, TAPPI JOURNAL, August 2002, Vol. 1(6) (49KB)

Journal articles
Open Access
High-yield pulping of switchgrass, Solutions! & TAPPI JOURNAL, August 2002 (144KB)

High-yield pulping of switchgrass, Solutions! & TAPPI JOURNAL, August 2002 (144KB)

Journal articles
Open Access
The relationship between Kappa Number and Oxidizable Structures in Bleached Kraft Pulps, JOURNAL OF PULP AND PAPER SCIENCE: VOL. 28 NO. 8 AUGUST 2002 [02AUGJP262.pdf]

The relationship between kappa number and oxidizable structures in bleached kraft pulps, Journal of Pulp and Paper Science, August 2002, Vol. 28(8) (107KB)

Journal articles
Open Access
Influence of the oxidative thermochemical treatment on the chemical composition of hardwood kraft black liquor, TAPPI JOURNAL, December 2002, Vol. 1(10) (182KB)

Influence of the oxidative thermochemical treatment on the chemical composition of hardwood kraft black liquor, Solutions! & TAPPI JOURNAL, December 2002, Vol. 1(10) (182KB)

Journal articles
Inside the numbers: Australian Eucalypt Plantations Making up for lost time, SOLUTIONS! [04MARSO60.pdf]

Australian eucalypt plantations: making up for lost time, Solutions!, March 2004, Vol. 87(3) (102KB)

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