OXYGEN DELIGNIFICATION OF PULP IN THE PRESENCE OF CARBONATES AS ALKALI - Patent 1161593

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EP 1 161 593 A1

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(43)	Date of publication:
	12.12.2001 Bulletin 2001/50

(21)	Application number: 00908150.6

(22)	Date of filing: 28.01.2000

(51)	International Patent Classification (IPC)⁷: D21C 9/147

(86)	International application number:
	PCT/SE0000/172

(87)	International publication number:
	WO 0047/813 (17.08.2000 Gazette 2000/33)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

09.02.1999 SE 9900425

(71)	Applicant: STFI
	114 86 Stockholm (SE)

(72)	Inventors:
	TORMUND, Disa S-111 23 Stockholm (SE) BERTHOLD, Fredrik S-182 55 Djursholm (SE) LINDSTRÖM, Mikael S-131 50 Saltsjö-Duvnäs (SE)

(74)	Representative: Onn, Thorsten et al
	Stockholms Patentbyra Zacco AB,P.O. Box 23101 104 35 Stockholm 104 35 Stockholm (SE)

(54)	OXYGEN DELIGNIFICATION OF PULP IN THE PRESENCE OF CARBONATES AS ALKALI