(19)

(11)

EP 0 227 673 A1

(12)

(43) Date of publication: 08.07.1987 Bulletin 1987/28 (21) Application number: 85904504.0 (22) Date of filing: 05.09.1985

(51) International Patent Classification (IPC):  B01D 46/ 12( . ) (86) International application number: PCT/SE1985/000331 (87) International publication number: WO 1986/001430 (13.03.1986 Gazette 1986/06)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 06.09.1984 SE 19840004470 (71) Applicant: JAKOBSSON, Klas S-461 42 Trollhättan (SE)	(72) Inventor: JAKOBSSON, Klas S-461 42 Trollhättan (SE) (74) Representative: Mossmark, Anders  Albihn West AB, Box 142 S-401 22 Göteborg S-401 22 Göteborg (SE)