Pressure groundwood pulping (PGW)

Authors & references

Authors:

Raimo Alén, University of Jyväskylä and Victoria Lindqvist, Forest Products Engineers have modified the text mainly from the reference “Karojärvi, R., Haikkala P., Liimatainen, H., Lucander, M. and Tuovinen, O. 2009. Grinding and pressure grinding. In: Lönnberg, B. (Ed.). Mechanical Pulping. 2^nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 116−173”.

References:

1. Karojärvi, R., Haikkala P., Liimatainen, H., Lucander, M. and Tuovinen, O. 2009. Grinding and pressure grinding. In: Lönnberg, B. (Ed.). Mechanical Pulping. 2^nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 116−173.
2. Kärnä, A. 1984. Studies of Pressurised Grinding. Doctoral Thesis. Helsinki University of Technology, Espoo, Finland. 88 p.
3. Salmén, L., Lucander, M., Härkönen, E. and Sundholm, J. 2009. Fundamentals of mechanical pulping. In: Lönnberg, B. (Ed.). Mechanical Pulping. 2^nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 35−67.
4. Goring, D. 1963. Thermal softening of lignin, hemicellulose and cellulose. Pulp & Paper Magazine of Canada 65(12):517−527.
5. Haikkala, P., Liimatainen, H. and Tuominen, R. 1988. Impact of superheated shower waters on pressure groundwood pulp properties. Proceedings of Appita 1988 Conference, Hobart, Tasmania, Australia. P. A24.1.
6. Tuominen, R., Haikkala, P. and Liimatainen, H. 1991. Effect of dry and frozen wood on groundwood pulp quality. Paperi ja Puu 73(4):346−351.
7. Haikkala, P., Liimatainen, H. and Tuominen, R. 1999. New grinder concept for continuous pressure grinding. Proceedings of International Mechanical Pulping Conference, Houston, TX, USA. TAPPI Press, Atlanta, GA, USA. Pp. 357−370.
8. Tienvieri, T. 2009. Flowsheets for various mechanical pulping and screening processes. In: Lönnberg, B. (Ed.). Mechanical Pulping. 2^nd edition. Paper Engineers’ Association, Helsinki, Finland. Pp. 419−429.
9. Cariñanco, M., Ramis, E. and Haikkala, P. 2003. Use of Pinus radiata PGW pulp for newsprint and directory papers at Norske Skog Bio mill. Proceedings of 2003 International Mechanical Pulping Conference, June 2−5, 2003, Québec City, Canada. Pp. 463−472.
10. Corson, S. and Richardson, J. 2005. Fast grown PGW fibre for superior communication papers. Proceedings of 59^th Appita Annual Conference and Exhibition, Aukland, New Zealand, May 16−19, 2005. Pp. 77−84.
11. Murtola, C. and Peltonen, E. 1995. Industrielle Druckschlifferzeugung mit niedrigen Spritzwassertemperaturen in einer Papierfabrik. PTS-TUD Symposium Papierzellstof und Holzstofftechnik, Dresden, Germany.
12. Asunmaa, P. 1993. The selection, process flowcharts, optimization and results obtained from the new PGW-S mill at the Kaukas Oy, Voikkaa Mill in Finland. Notes of CPPA Annual Meeting, Montréal, Canada. P. B71.
13. Honkanen, T. and Yrjönsuuri, R. 1993. The first years of the first PGW-S mill. Proceedings of International Mechanical Pulping Conference, Oslo, Norway. P. 44.