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Journal articles
Open Access
Environmental compatibility of effluents of aspen biomechanical pulps, TAPPI JOURNAL, January 1994, Vol. 77(1)

Environmental compatibility of effluents of aspen biomechanical pulps, TAPPI JOURNAL, January 1994, Vol. 77(1)

Journal articles
Open Access
The use of xylanases in kraft pulp bleaching: a review, TAPPI JOURNAL, June 1994, Vol. 77(6)

The use of xylanases in kraft pulp bleaching: a review, TAPPI JOURNAL, June 1994, Vol. 77(6)

Journal articles
Open Access
Stainless steel piping for pulp handling and chemical recovery, TAPPI JOURNAL, June 1994, Vol. 77(6)

Stainless steel piping for pulp handling and chemical recovery, TAPPI JOURNAL, June 1994, Vol. 77(6)

Journal articles
Open Access
Page ethanol-kraft pulping and papermaking properties of aspen and spruce, TAPPI JOURNAL, January 1997, Vol. 80(1)

Page ethanol-kraft pulping and papermaking properties of aspen and spruce, TAPPI JOURNAL, January 1997, Vol. 80(1)

Journal articles
Open Access
The swelling of pulp fibers derived from the ethanol-based organosolv process, TAPPI JOURNAL, January 1997, Vol. 80(1)

The swelling of pulp fibers derived from the ethanol-based organosolv process, TAPPI JOURNAL, January 1997, Vol. 80(1)

Journal articles
Open Access
Capital effectiveness of the paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)

Capital effectiveness of the paper industry, TAPPI JOURNAL, October 1997, Vol. 80(10)

Journal articles
Open Access
A financial analysis of north american pulp, paper and packaging firms, TAPPI JOURNAL, September 1999, Vol. 82(9)

A financial analysis of north american pulp, paper and packaging firms, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Open Access
Pulp refiner trial tips, TAPPI JOURNAL, September 1999, Vol. 82(9)

Pulp refiner trial tips, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Open Access
Effect of composition on the first melting temperature of fireside deposits in recovery Boilers, TAPPI JOURNAL, September 1999, Vol. 82(9)

Effect of composition on the first melting temperature of fireside deposits in recovery Boilers, TAPPI JOURNAL, September 1999, Vol. 82(9)

Journal articles
Magazine articles
Open Access
Optimizing OCC refining with defloccing, TAPPI Journal April 2025

ABSTRACT: Subjecting pulp to a high shear zone immediately after refining results in more efficient refining. This phenomenon was originally observed to benefit softwood pulp refining. It was attributed to floc reduction based on floc measurements in mill refiners and the observation of reduced headbox plugging. Hence, this phenomenon has been termed “defloccing.” The present work shows this technology also benefits refining of North American old corrugated containers (OCC). The combined results of several mill trials with OCC defloccing demonstrate the interactions between OCC refining intensity, defloccing technology, and other state-of-the-art refining improvements. At the same refining intensity, defloccing OCC on 100% recycled machines increases OCC refining efficiency by 15%, with greater efficiency improvement on machines that use softwood as well as OCC. Furthermore, it is shown that the benefits of defloccing are additive to refining improvements made in the refining zone of a refiner plate. Most OCC refiner plate designs can therefore benefit from the addition of a defloccing feature.

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