EP 0597682 A1 19940518 - Removing fibres from pulp.
Title (en)
Removing fibres from pulp.
Title (de)
Abführen von Fasern aus einem Faserbrei.
Title (fr)
Enlèvement de fibres d'une pâte à papier.
Publication
Application
Priority
US 97413492 A 19921110
Abstract (en)
Coarse fibres are removed from a lignocellulosic pulp by spraying a slurry of the pulp against a rotating disk filter. A first fraction of the pulp passes through the filter and constitutes an accepts fraction. A second fraction is retained on the filter, contains an enriched concentration of coarse fibres from the pulp and constitutes a rejects fraction. The accepts and rejects fractions are removed from the filter. <IMAGE>
IPC 1-7
IPC 8 full level
D21D 5/04 (2006.01)
CPC (source: EP)
D21D 5/046 (2013.01)
Citation (search report)
- [DX] WO 9006396 A1 19900614 - CELLECO AB [SE]
- [PX] WO 9315265 A1 19930805 - CELLECO HEDEMORA AB [SE]
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 0597682 A1 19940518; EP 0597682 B1 19970730; CA 2108321 A1 19940511; DE 69312639 D1 19970904; DE 69312639 T2 19980129; FI 934955 A0 19931109; FI 934955 A 19940511
DOCDB simple family (application)
EP 93308961 A 19931110; CA 2108321 A 19931013; DE 69312639 T 19931110; FI 934955 A 19931109