A METHOD FOR OPERATING A PRE-BAKE ELECTROLYSIS CELL SYSTEM AND AN ARRANGEMENT FOR USE IN THIS SYSTEM - Patent 1446625

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EP 1 446 625 A1

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(43)	Date of publication:
	18.08.2004 Bulletin 2004/34

(21)	Application number: 02775602.2

(22)	Date of filing: 01.11.2002

(51)	International Patent Classification (IPC)⁷: F27D 3/12, F27D 15/02, C25C 3/06, C25C 3/22, C25C 7/06

(86)	International application number:
	PCT/NO2002/000399

(87)	International publication number:
	WO 2003/042618 (22.05.2003 Gazette 2003/21)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

14.11.2001 NO 20015573

(71)	Applicant: NORSK HYDRO ASA
	0240 Oslo (NO)

(72)	Inventors:
	LAGREID, Stig N-1400 Ski (NO) BJORBEKK, Lars, Magne N-6613 Gjora (NO)

(74)	Representative: Bleukx, Luc
	Bleukx Consultancy BVBARijksweg 237 3650 Dilsen-Stokkem 3650 Dilsen-Stokkem (BE)

(54)	A METHOD FOR OPERATING A PRE-BAKE ELECTROLYSIS CELL SYSTEM AND AN ARRANGEMENT FOR USE IN THIS SYSTEM