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No 12 / 62

Development of the IDE-pulping concept

Date: 1.2.1995-31.12.1996
Code: K7614
Department: Åbo Akademi University / Faculty of Chemical Engineering (KTF), Laboratory of Pulping Technology
Address: Porthansgatan 3, FIN-20500 Åbo
Phone +358-2-2154 126
Fax +358-2-2517 797
E-mail blonnber@abo.fi
Project leader: TkD Bruno Lönnberg, professor (1.2.1995-31.12.1996)
Researchers: TkD Leif Robertsen (1.2.1995-31.12.1996)
Type of research: 2 (0=Within duty, 1=Ordered research, 2=Co-operation)
- basic research 50 %
- applied research 30 %
- developmental work 20 %
Finnish funding organizations: Kymmene, Ahlström () FIM 2000000
TEKES () FIM 2000000
Man months: Totally: 23 months
Partners: Kymmene, Ahlström, Rintekno
Contacts: Wisaforest Oy, Jakobstad
Keywords: massatillverkning, forskning, massanvalmistus, tutkimus, impregnering, delignifiering, extraktion, massa, impregnation, delignification, extraction, pulp,

A sulphur-free pulping method is under development at Åbo Akademi University.The basic subprocesses of this new IDE-concept (initials of Impregnation, Depolymerization and Extraction) are studied under controlled conditions in order to find a simple and cheap process providing well delignified fibres without shives and with a high pulp yield and good fibre properties.


26.2.1996 / 27.2.1996