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Journal articles
Open Access
A Kids' View of 'Forests For Our Future', TAPPI JOURNAL, January 2000, Vol. 83(1)

A Kids' View of 'Forests For Our Future', TAPPI JOURNAL, January 2000, Vol. 83(1)

Magazine articles
Open Access
Using climate change policies for u.s. pulp and paper industry efficiency, TAPPI JOURNAL, July 2000, Vol. 83(7)

Using climate change policies for u.s. pulp and paper industry efficiency, TAPPI JOURNAL, July 2000, Vol. 83(7)

Journal articles
Open Access
Abitibi consolidated's mill in snowflake, az, converts to 100% recycling, TAPPI JOURNAL, April 2000, Vol. 83(4)

Abitibi consolidated's mill in snowflake, az, converts to 100% recycling, TAPPI JOURNAL, April 2000, Vol. 83(4)

Journal articles
Open Access
Preparation of specialized paper, Solutions! & TAPPI JOURNAL, April 2004 (349KB)

Preparation of specialized paper, Solutions! & TAPPI JOURNAL, April 2004 (349KB)

Journal articles
Open Access
Pulping and Papermaking Properties of Managed Second-Growth

Pulping and Papermaking Properties of Managed Second-Growth Softwoods, 1995 Pulping Conference Proceedings

Journal articles
Open Access
Tear and tensile properties of soda pulps from kenaf bast fibers, TAPPI JOURNAL, June 2000, Vol. 83(6)

Tear and tensile properties of soda pulps from kenaf bast fibers, TAPPI JOURNAL, June 2000, Vol. 83(6)

Magazine articles
Open Access
Industry leaders: jukka harmala leads stora enso into new global age, TAPPI JOURNAL, May 2000, Vol. 83(5)

Industry leaders: jukka harmala leads stora enso into new global age, TAPPI JOURNAL, May 2000, Vol. 83(5)

Magazine articles
Open Access
A personal mount st. helens experience, TAPPI JOURNAL, May 2000, Vol. 83(5)

A personal mount st. helens experience, TAPPI JOURNAL, May 2000, Vol. 83(5)

Journal articles
Magazine articles
Open Access
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.

Journal articles
Open Access
The role of evaporative dewatering in impulse pressing, TAPPI JOURNAL, March 2003, Vol. 2(3) (185KB)

The role of evaporative dewatering in impulse pressing, TAPPI JOURNAL, March 2003, Vol. 2(3) (185KB)

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