Upgrading of OCC Pulp by Fractionation. Results from Laboratory, Pilot and Full-Scale Tests, 1995 Recycling Symposium Proceedings

Curt Lindström

Staffan Persson

Björn Pettersson

AssiDomän Kraftliner

Jan Backman

Alf Gustavsson

Celleco Hedemora AB

By using a new type of fractionation equipment AssiDomän Kraftliner and Celleco Hedemora have shown it possible to increase the pulp quality of recycled OCC. A pulp slurry is sprayed against a rotating mesh screen thus washing out fines material of about 15% of weight. An approximative reduction of 20°SR is possible. The fractionated OCC pulp can be used on the paperboard machine, either for increasing machine speed, for increasing strength by beating or for increasing the used percentage of recycled OCC. At AssiDomtän Kraftliner an increase in machine speed by 3-5% was recorded in two trials. The runnability of the equipment was good.

Author: Lindström, C., Persson, S., Pettersson, B., Backman, J., Gustavsson, A.
Upgrading of OCC Pulp by Fractionation. Results from Laborat
Upgrading of OCC Pulp by Fractionation. Results from Laboratory, Pilot and Full-Scale Tests, 1995 Recycling Symposium Proceedings
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