A PROCESS FOR THE BLEACHING OF CHEMICAL PULP - Patent 0513140

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EP 0 513 140 A1

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(43)	Date of publication:
	19.11.1992 Bulletin 1992/47

(21)	Application number: 91903684.0

(22)	Date of filing: 01.02.1991

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International Patent Classification (IPC):

D21C 5/ 00^{( . )}
D21C 9/ 14^{( . )}
D21C 9/ 16^{( . )}

D21C 9/ 10^{( . )}
D21C 9/ 147^{( . )}

(86)	International application number:
	PCT/FI1991/000033

(87)	International publication number:
	WO 1991/011553 (08.08.1991 Gazette 1991/18)

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

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Priority:

02.02.1990 FI 19900000549

(71)	Applicant: ENSO-GUTZEIT OY
	SF-00160 Helsinki (FI)

(72)	Inventors:
	VAHERI, Marja SF-02210 Espoo (FI) RUOHONIEMI, Kimmo SF-55800 Imatra (FI) SONNI, Hannu SF-55100 Imatra (FI)

(74)	Representative: Fogelberg, Lennart, et al
	STENHAGEN PATENTBYRA AB Box 4630 S-116 91 Stockholm S-116 91 Stockholm (SE)

(54)	A PROCESS FOR THE BLEACHING OF CHEMICAL PULP