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Journal articles
Researcher's toolbox, International Nonwovens Journal, July 2003, Vol. 12(2) (418KB)
Researcher's toolbox, International Nonwovens Journal, July 2003, Vol. 12(2) (418KB)
Journal articles
Director's corner, International Nonwovens Journal, July 2003, Vol. 12(2) (418KB)
Director's corner, International Nonwovens Journal, July 2003, Vol. 12(2) (418KB)
Journal articles
Nonwovens net, International Nonwovens Journal, July 2003, Vol. 12(2) (419KB)
Nonwovens net, International Nonwovens Journal, July 2003, Vol. 12(2) (419KB)
Journal articles
Emerging Technology, International Nonwovens Journal, July 2003, Vol. 12(2) (419KB)
Emerging Technology, International Nonwovens Journal, July 2003, Vol. 12(2) (419KB)
Journal articles
The impact of input energy on the performance of hydroentangled nonwoven fabrics, International Nonwovens Journal, July 2003, Vol. 12(2) (1174KB)
The impact of input energy on the performance of hydroentangled nonwoven fabrics, International Nonwovens Journal, July 2003, Vol. 12(2) (1174KB)
Journal articles
Utilization of turkey feather fibers in nonwoven erosion control fabrics, International Nonwovens Journal, July 2003, Vol. 12(2) (1428KB)
Utilization of turkey feather fibers in nonwoven erosion control fabrics, International Nonwovens Journal, July 2003, Vol. 12(2) (1428KB)
Journal articles
Preparation and properties of cotton-eastar nonwovens, International Nonwovens Journal, July 2003, Vol. 12(2) (844KB)
Preparation and properties of cotton-eastar nonwovens, International Nonwovens Journal, July 2003, Vol. 12(2) (844KB)
Journal articles
Colour speck counter for assessing the dirt level in secondary fibre pulps, Journal of Pulp and Paper Science, July 2003, Vol. 29(7) (253KB)
Colour speck counter for assessing the dirt level in secondary fibre pulps, Journal of Pulp and Paper Science, July 2003, Vol. 29(7) (253KB)
Journal articles
Magazine articles
Editorial: A preview of PEERS 2019, TAPPI Journal September 2019
ABSTRACT: Coming soon is PEERS • TAPPI’s annual Pulping, Engineering, Environmental, Recycling and Sustainability gathering for industry professionals. Held this October 27-30 in St. Louis, MO, the conference is co-located with the International Bioenergy & Bioproducts Conference (IBBC) and the 12th Research Forum on Recycling. Universities and research organizations from around the world are represented in the conference content, and below is a sampling of just a few of the many presentations that might interest TAPPI Journal readers.
Journal articles
Magazine articles
Critical parameters for tall oil separation I: The importance of ration of fatty acids to rosin acids, TAPPI Journal September 2019
ABSTRACT: Tall oil is a valuable byproduct in chemical pulping of wood, and its fractions have a large spectrum of applications as chemical precursors, detergents, and fuel. High recovery of tall oil is important for the economic and environmental profile of chemical pulp mills. The purpose of this study was to investigate critical parameters of tall oil separation from black liquor. To investigate this in a controlled way, we developed a model test system using a “synthetic” black liquor (active cooking chemicals OH- and HS- ions), a complete process for soap skimming, and determination of recovered tall oil based on solvent extraction and colorimetric analysis, with good reproducibility. We used the developed system to study the effect of the ratio of fatty acids to rosin acids on tall oil separation. When high amounts of rosin acids were present, tall oil recovery was low, while high content of fatty acids above 60% significantly promoted tall oil separation. Therefore, manipulating the content of fatty acids in black liquor before the soap skimming step can significantly affect the tall oil solubility, and hence its separation. The findings open up chemical ways to improve the tall oil yield.