EP 1467017 A1 20041013 - Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes
Title (en)
Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes
Title (de)
Verfahren zur Kontrolle von Mikroorganismen in Wasserstoffperoxydbleichen einer Zellstoffsuspension
Title (fr)
Méthode de régulation des microorganismes dans un procédé de blanchiment au peroxyde d'hydrogène de pâte de cellulose
Publication
Application
Priority
US 41075303 A 20030410
Abstract (en)
A method of controlling micro-organisms during peroxide bleaching of cellulose pulp comprising adding to the pulp an effective micro-organism controlling amount of a) an aqueous biocide solution comprising one or more organic peracids; and b) an aqueous solution comprising one or more chelating agents.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
D21C 9/16 (2013.01 - EP US); D21C 9/1026 (2013.01 - EP US); D21C 9/1042 (2013.01 - EP US); D21C 9/166 (2013.01 - EP US)
Citation (search report)
- [XD] GB 2269191 A 19940202 - SOLVAY INTEROX LTD [GB]
- [A] US 4548674 A 19851022 - HAGEMAN JACQUES [BE], et al
- [AD] US 5885412 A 19990323 - PAART ENN [SE], et al
- [A] US 4752354 A 19880621 - BEURICH HARALD [DE], et al
- [A] US 2002179262 A1 20021205 - NEY BILL [GB], et al
- [A] US 3645840 A 19720229 - LINCOLN ROBERT M, et al
- [A] US 6264790 B1 20010724 - JAEKAERAE JUKKA [FI], et al
- [A] US 4966775 A 19901030 - DONOFRIO DEBORAH K [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03255848 A 20030918; US 41075303 A 20030410