METHOD FOR CHLORINE-FREE BLEACHING OF PULP WITH ACETIC ACID AS ACIDIFYING AGENT - Patent 0681624

(19)

(11)

EP 0 681 624 A1

(12)

(43)	Date of publication:
	15.11.1995 Bulletin 1995/46

(21)	Application number: 94905899.0

(22)	Date of filing: 26.01.1994

(51)

International Patent Classification (IPC):

D21C 9/ 10^{( . )}

D21C 9/ 16^{( . )}

(86)	International application number:
	PCT/SE1994/000054

(87)	International publication number:
	WO 1994/017239 (04.08.1994 Gazette 1994/18)

(84)	Designated Contracting States:
	AT DE ES FR PT SE

(30)

Priority:

29.01.1993 SE 19930000277

(71)	Applicant: Kvaerner Pulping Technologies AB
	S-651 15 Karlstad (SE)

(72)	Inventors:
	NILSSON, Erik S-660 57 Väse (SE) TIBBLING, Petter S-660 50 V lberg (SE)

(74)	Representative: Lundquist, Lars-Olof
	L-O Lundquist Patentbyra Box 80 S-651 03 Karlstad S-651 03 Karlstad (SE)

(54)	METHOD FOR CHLORINE-FREE BLEACHING OF PULP WITH ACETIC ACID AS ACIDIFYING AGENT