PROCEDURE AND SYSTEM FOR REFINING A FIBROUS MATERIAL WITH IMPROVED ENERGY EFFICENCY AND PULP QUALITY - Patent 2488695

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EP 2 488 695 A1

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(43)	Date of publication:
	22.08.2012 Bulletin 2012/34

(21)	Application number: 10720734.2

(22)	Date of filing: 10.05.2010

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International Patent Classification (IPC):

D21D 1/00^(2006.01)
D21G 9/00^(2006.01)

D21D 1/20^(2006.01)

(86)	International application number:
	PCT/EP2010/056355

(87)	International publication number:
	WO 2011/045090 (21.04.2011 Gazette 2011/16)

(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

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Priority:

14.10.2009 US 251375 P

(71)	Applicant: ABB Research Ltd.
	8050 Zürich (CH)

(72)	Inventors:
	KARLSTRÖM, Anders S-41273 Göteborg (SE) ISAKSSON, Alf S-72353 Västerås (SE) LEDUNG, Lars S-72246 Västerås (SE) SÄYNEVIRTA, Simo FIN-02170 Espoo (FI)

(74)	Representative: Savela, Reino Aleksi
	ABB AB Intellectual Property Ingenjör Bååths Gata 11 721 83 Västerås 721 83 Västerås (SE)

(54)	PROCEDURE AND SYSTEM FOR REFINING A FIBROUS MATERIAL WITH IMPROVED ENERGY EFFICENCY AND PULP QUALITY