(19)
(11) EP 2 443 280 A1

(12)

(43) Date of publication:
25.04.2012 Bulletin 2012/17

(21) Application number: 10789951.0

(22) Date of filing: 09.06.2010
(51) International Patent Classification (IPC): 
D21C 3/00(2006.01)
(86) International application number:
PCT/US2010/037880
(87) International publication number:
WO 2010/147812 (23.12.2010 Gazette 2010/51)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 15.06.2009 US 187073 P

(71) Applicant: Arkema, Inc.
King of Prussia, PA 19406 (US)

(72) Inventors:
  • HEIMBURGER, Stanley A.
    Bellingham, Washington 98225 (US)
  • LOUGHEED, Melford R.
    British Columbia, V8A 5C1 (CA)

(74) Representative: Lhoste, Catherine 
ARKEMA FRANCE Département Propriété Industrielle 420 Rue d'Estienne d'Orves
92705 Colombes Cedex
92705 Colombes Cedex (FR)

   


(54) ALKALINE PEROXIDE TREATMENT OF REJECTS IN AN INTEGRATED NEUTRAL-ALKALINE PAPER MILL