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Journal articles
Open Access
Monitoring our progress toward sustainability - desirable or undesirable?, TAPPI JOURNAL, May 1997, Vol. 80(5)

Monitoring our progress toward sustainability - desirable or undesirable?, TAPPI JOURNAL, May 1997, Vol. 80(5)

Journal articles
Open Access
Production of polysulfide liquor in a kraft mill's causticizers, TAPPI JOURNAL, October 1997, Vol. 80(10)

Production of polysulfide liquor in a kraft mill's causticizers, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
A rapid modified gas chromatographic method for carbohydrate analysis of wood pulps, TAPPI JOURNAL, September 1997, Vol. 80(9)

A rapid modified gas chromatographic method for carbohydrate analysis of wood pulps, TAPPI JOURNAL, September 1997, Vol. 80(9)

Journal articles
Open Access
Peroxyformic acid pulping of nonwood plants by the milox method - part 1: pulping and bleaching, TAPPI JOURNAL, September 1997, Vol. 80(9)

Peroxyformic acid pulping of nonwood plants by the milox method - part 1: pulping and bleaching, TAPPI JOURNAL, September 1997, Vol. 80(9)

Journal articles
Open Access
The influence of ph on the growth-linked biodegradation kinetics of selected resin acids found in pulp mill effluent, TAPPI JOURNAL, July 1999, Vol. 82(7)

The influence of ph on the growth-linked biodegradation kinetics of selected resin acids found in pulp mill effluent, TAPPI JOURNAL, July 1999, Vol. 82(7)

Journal articles
Open Access
Fiber length fractionation of tmp using pressure screens, TAPPI JOURNAL, June 1999, Vol. 82(6)

Fiber length fractionation of tmp using pressure screens, TAPPI JOURNAL, June 1999, Vol. 82(6)

Journal articles
Open Access
Paprican's process for polysulfide liquor production in kraft mill causticizers, part 1: batch trials and process optimization, TAPPI JOURNAL, October 1999, Vol. 82(10)

Paprican's process for polysulfide liquor production in kraft mill causticizers, part 1: batch trials and process optimization, TAPPI JOURNAL, October 1999, Vol. 82(10)

Journal articles
Open Access
Comments on the measurement of cell wall water, TAPPI JOURNAL, September 1999, Vol. 82(9)

Comments on the measurement of cell wall water, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Open Access
Black liquor gasification - operating experience at weyerhaeuser, new bern, nc, TAPPI JOURNAL, September 1999, Vol. 82(9)

Black liquor gasification - operating experience at weyerhaeuser, new bern, nc, TAPPI JOURNAL, September 1999, Vol. 82(9)

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.