(19)

(11)

EP 0 808 417 A1

(12)

(43) Date of publication: 26.11.1997 Bulletin 1997/48 (21) Application number: 96900619.0 (22) Date of filing: 12.01.1996

(51) International Patent Classification (IPC):  B01D 50/ 00( . ) B03C 3/ 02( . ) B03C 3/ 28( . ) B03C 3/ 017( . ) B03C 3/ 155( . ) F02C 7/ 052( . ) (86) International application number: PCT/FI1996/000027 (87) International publication number: WO 1996/024760 (15.08.1996 Gazette 1996/37)

(84) Designated Contracting States: DE FR GB SE (30) Priority: 09.02.1995 FI 19950000576 (71) Applicant: IMATRAN VOIMA OY 00100 Helsinki (FI)	(72) Inventor: RANTANEN, Mika FIN-28450 Vanha-Ulvila (FI) (74) Representative: Hovi, Simo, et al  Seppo Laine Oy Lönnrotinkatu 19 A 00120 Helsinki 00120 Helsinki (FI)