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Magazine articles
Factors affecting phosphorus uptake/dissolution during slaking and causticizing, TAPPI Journal March 2024
ABSTRACT: Hydroxide is regenerated in the recovery cycle of kraft pulp mills by the addition of lime (CaO) to green liquor. Phosphate in green liquor can react with the lime during slaking/causticizing. Total titratable alkali (TTA), sulfidity, the concentration of phosphate in the green liquor, temperature, and the liming ratio were all variables explored in this work to determine their influence on phosphorus uptake and dissolution. Experiments were also run in which the lime was slaked before being added to the green liquor to separate reactions with phosphate during slaking and reactions that occur during causticizing. Both reburnt lime and technical grade CaO were used. The experiment results indicate that phosphorus primarily reacts with slaked lime (Ca(OH)2), and that the final concentration of phosphate in the white liquor at the end of slaking and causticizing is nearly independent of the initial concentration of phosphorus and only mildly dependent on the carbonate concentration in the green liquor. There do appear to be differences in the rate at which phosphate reacts with reburnt lime and technical grade CaO, though the reason for this was not determined.
Magazine articles
Life-Cycle Assessment: background and update, December 1995 Tappi Journal [95Dec41.pdf]
Life-cycle assessment: background and update, TAPPI JOURNAL, December 1995, Vol. 78(12)
Magazine articles
Mönsterås going 100% TCF as it increases production and minimizes emissions, December 1995 Tappi Journal [95Dec49.pdf]
Monsteras going 100% tcf as it increases production and minimizes emissions, TAPPI JOURNAL, December 1995, Vol. 78(12)
Magazine articles
CEO forecast: the recovery has arrived, TAPPI JOURNAL, January 1995, Vol. 78(1)
CEO forecast: the recovery has arrived, TAPPI JOURNAL, January 1995, Vol. 78(1)
Magazine articles
Corrosion of nickel-base alloys in chlorine dioxide environments, TAPPI JOURNAL, June 1995, Vol. 78(6)
Corrosion of nickel-base alloys in chlorine dioxide environments, TAPPI JOURNAL, June 1995, Vol. 78(6)
Magazine articles
Corrosion of metallic and nonmetallic piping for bleach-plant d-stage filtrate, TAPPI JOURNAL, June 1991, Vol. 74(6)
Corrosion of metallic and nonmetallic piping for bleach-plant d-stage filtrate, TAPPI JOURNAL, June 1991, Vol. 74(6)
Magazine articles
In-plant corrosion testing in chlorine dioxide environments, TAPPI JOURNAL, February 1996, Vol. 79(2)
In-plant corrosion testing in chlorine dioxide environments, TAPPI JOURNAL, February 1996, Vol. 79(2)
Magazine articles
The global wood fiber equation - a new world order?, TAPPI JOURNAL, January 1996, Vol. 79(1)
The global wood fiber equation - a new world order?, TAPPI JOURNAL, January 1996, Vol. 79(1)
Magazine articles
Nonwood fibers mark the road to gold for jow atchison, TAPPI JOURNAL, March 1996, Vol. 79(3)
Nonwood fibers mark the road to gold for jow atchison, TAPPI JOURNAL, March 1996, Vol. 79(3)
Magazine articles
A waste management program for paper mill sludge high in ash, TAPPI JOURNAL, April 1990, Vol. 73(4)
A waste management program for paper mill sludge high in ash, TAPPI JOURNAL, April 1990, Vol. 73(4)