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Magazine articles
Open Access
A financial analysis of north american pulp and paper companies, TAPPI JOURNAL, July 2000, Vol. 83(7)

A financial analysis of north american pulp and paper companies, TAPPI JOURNAL, July 2000, Vol. 83(7)

Journal articles
Open Access
Investing in the future of your mill, TAPPI JOURNAL, July 2000, Vol. 83(7)

Investing in the future of your mill, TAPPI JOURNAL, July 2000, Vol. 83(7)

Journal articles
Open Access
Changing times for mill industries: integration of business and manufacturing information, TAPPI JOURNAL, January 2000, Vol. 83(1)

Changing times for mill industries: integration of business and manufacturing information, TAPPI JOURNAL, January 2000, Vol. 83(1)

Journal articles
Open Access
Research and development in the pulp and paper industry: year 2000 and beyond, TAPPI JOURNAL, January 2000, Vol. 83(1)

Research and development in the pulp and paper industry: year 2000 and beyond, TAPPI JOURNAL, January 2000, Vol. 83(1)

Journal articles
Open Access
Dispersion of pulp slurries using carboxymethylcellulose, TAPPI JOURNAL, October 2000, Vol. 83(10)

Dispersion of pulp slurries using carboxymethylcellulose, TAPPI JOURNAL, October 2000, Vol. 83(10)

Journal articles
Open Access
Editor's Notes: Ready for a Test Drive, TAPPI JOURNAL, Novem

Editor's Notes: Ready for a Test Drive, TAPPI JOURNAL, November, 2006

Journal articles
Open Access
On-line measurement and control of strength properties, TAPPI JOURNAL February 1988 88FEB75

On-line measurement and control of strength properties, TAPPI JOURNAL February 1988

Journal articles
Open Access
Third-party financing of pulp and paper mill steam, power, and utility sssets, TAPPI JOURNAL, January 1998, Vol. 81(1)

Third-party financing of pulp and paper mill steam, power, and utility sssets, TAPPI JOURNAL, January 1998, Vol. 81(1)

Journal articles
Magazine articles
Open Access
Evaluation of soap recovery efficiency from black liquor — analytical tools, TAPPI Journal April 2023

ABSTRACT: Soap skimmings (“soap”) are typically recovered from black liquor in kraft mills that process a high percentage of softwood. In many mills, the recovery of soap is inefficient, negatively impacting performance of evaporators and recovery boilers and resulting in loss of potential revenue. A thorough evaluation of soap recovery performance in a kraft mill requires measurement of soap content in black liquor at various sampling locations, especially around the soap skimmer.The standard laboratory method for evaluating soap content in black liquor is a complex, multi-step process that relies on solvent extraction and titration; most mills send these samples to an outside laboratory for this analysis. In this study, 100 black liquor samples, with a wide range of soap concentrations, were tested by the standard solvent extraction method. After additional dilution, each sample was also tested for surface tension with a bubble pressure tensiometer. The results were found to correlate very closely with the solvent extraction tests results. This alternate method, using surface tension measurements of diluted black liquor samples, produces rapid results and can be easily implemented in most kraft mills, which would facilitate much more frequent in-house evaluations of soap recovery performance.

Journal articles
Open Access
Women in the industry-Still rare, women are working hard to progress, TAPPI JOURNAL July 1988

Women in the industry-Still rare, women are working hard to progress, TAPPI JOURNAL July 1988

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