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To Canfor, Pulp is Much More than a Commodity, Paper360º September/October 2019

To Canfor, Pulp is Much More than a Commodity, Paper360º September/October 2019

Walter Schalka: RISI’s Four-time Latin American CEO of the Year, Paper360º September/October

Walter Schalka: RISI’s Four-time Latin American CEO of the Year, Paper360º September/October

TAPPI Journal Summaries, Paper360º September/October

TAPPI Journal Summaries, Paper360º September/October

UPM CEO Jussi Pesonen Named European CEO of the Year, Paper360º March/April 2019

UPM CEO Jussi Pesonen Named European CEO of the Year, Paper360º March/April 2019

Lignin value prior to pulping (LVPP): An advanced pulping c

Lignin value prior to pulping (LVPP): An advanced pulping concept, TAPPI JOURNAL October 2017

Degradation of 2,4-dichlorophenol by melamine amine cellulos

Degradation of 2,4-dichlorophenol by melamine amine cellulose- immobilized lacasses, TAPPI JOURNAL October 2017

Formation mechanisms of “jellyroll” smelt in kraft recovery

Formation mechanisms of “jellyroll” smelt in kraft recovery boilers, TAPPI JOURNAL October 2017

Taking the Guesswork Out of Decarbonizing Pulp and Paper Mills, Paper360º September/October 2024

TAPPI Journal Summaries, Paper360º September/October 2024

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.