METHOD FOR LOWERING THE LEVEL OF OXALIC ACID - Patent 0920552

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EP 0 920 552 A1

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(43)	Date of publication:
	09.06.1999 Bulletin 1999/23

(21)	Application number: 97935959.0

(22)	Date of filing: 20.08.1997

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International Patent Classification (IPC):

D21C 5/ 00^{( . )}

D21C 9/ 00^{( . )}

(86)	International application number:
	PCT/SE1997/001365

(87)	International publication number:
	WO 1998/007922 (26.02.1998 Gazette 1998/08)

(84)	Designated Contracting States:
	DK FI FR NL

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Priority:

20.08.1996 SE 19960003029

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

(72)	Inventors:
	NILVEBRANT, Nils-Olov S-167 32 Bromma (SE) REIMANN, Anders S-134 36 Gustavsberg (SE) DE SOUSA, Filipe S-112 69 Stockholm (SE)

(74)	Representative: Onn, Thorsten, et al
	AB STOCKHOLMS PATENTBYRA, Zacco & Bruhn, Box 23101 104 35 Stockholm 104 35 Stockholm (SE)

(54)	METHOD FOR LOWERING THE LEVEL OF OXALIC ACID