Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Collections
Magazine articles
PanAsia paper braces for the next business cycle, Solutions!, February 2003, Vol. 86(2) (217KB)
PanAsia paper braces for the next business cycle, Solutions!, February 2003, Vol. 86(2) (217KB)
Magazine articles
Formulating coatings for direct print flexo without drying, Solutions!, February 2003, Vol. 86(2) (69KB)
Formulating coatings for direct print flexo without drying, Solutions!, February 2003, Vol. 86(2) (69KB)
Magazine articles
FPAC aims to make an impact on Europe, Solutions!, January 2003, Vol. 86(1) (511KB)
FPAC aims to make an impact on Europe, Solutions!, January 2003, Vol. 86(1) (511KB)
Magazine articles
Mill manager larry newell: "a career, not simply a job", Solutions!, January 2003, Vol. 86(1) (482KB)
Mill manager larry newell: "a career, not simply a job", Solutions!, January 2003, Vol. 86(1) (482KB)
Magazine articles
New growth in research?, Solutions!, January 2003, Vol. 86(1) (448KB)
New growth in research?, Solutions!, January 2003, Vol. 86(1) (448KB)
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.
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º September/October 2019
TAPPI Journal Summaries, Paper360º September/October 2019
Journal articles
Magazine articles
Kingsport Celebrates Its Centennial, Paper360º November/Dec
Kingsport Celebrates Its Centennial, Paper360º November/December 2016
Journal articles
Magazine articles
Best Practices for Wastewater Treatment and Management, Pape
Best Practices for Wastewater Treatment and Management, Paper360º November/December 2016
Journal articles
Magazine articles
Pulp and Paper: Industries with a Bright Future, Paper360º January/February 2019
Pulp and Paper: Industries with a Bright Future, Paper360º January/February 2019