Title:
METHOD FOR BLEACHING DE-INKED AND/OR RECYCLED PULPS
Document Type and Number:
WIPO Patent Application WO2001057309
Kind Code:
A3
Abstract:
The invention concerns a method for oxidising colouring agents fixed on pulps derived from recuperated and/or de-inked paper. More particularly, the invention concerns a method for bleaching de-inked and/or recycled pulps, characterised in that the pulp is subjected to the action of an oxidising agent in the presence of at least a metal complex.
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Inventors:
BRIOIS LAURENCE (FR)
FRAISSE LAURENT (FR)
RABION ALAIN (FR)
FRAISSE LAURENT (FR)
RABION ALAIN (FR)
Application Number:
PCT/FR2001/000214
Publication Date:
December 20, 2001
Filing Date:
January 23, 2001
Export Citation:
Assignee:
ATOFINA (FR)
BRIOIS LAURENCE (FR)
FRAISSE LAURENT (FR)
RABION ALAIN (FR)
BRIOIS LAURENCE (FR)
FRAISSE LAURENT (FR)
RABION ALAIN (FR)
International Classes:
D21C5/02; D21C9/10; (IPC1-7): D21C5/02; D21C9/10
Domestic Patent References:
| WO1999009244A1 | 1999-02-25 |
Foreign References:
| EP0588767A1 | 1994-03-23 | |||
| US5877389A | 1999-03-02 | |||
| GB2279657A | 1995-01-11 |
Other References:
VON RAVEN, A.: "Katalytische Bleiche und farbkorrektur von Zellstoff, holzstoff und Altpapier. Teil II", WOCHENBL. PAPIERFABR. 123, NO. 10: 424-427 (MAY 31, 1995). [GER.;ENGL. SUM.] CF. ABIPST 66: ABSTR. 15482., XP000900966
SELDER, H. ET AL: "Katalytische Bleiche und Farbortkorrektur von Zellstoff, Holzstoff und Altpapier", WOCHENBL. PAPIERFABR. 123, NO. 10: 417-420, 422-423 (MAY 31, 1995). [GER.;ENGL. SUM.], XP000912140
SELDER, H. ET AL: "Katalytische Bleiche und Farbortkorrektur von Zellstoff, Holzstoff und Altpapier", WOCHENBL. PAPIERFABR. 123, NO. 10: 417-420, 422-423 (MAY 31, 1995). [GER.;ENGL. SUM.], XP000912140
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