(19)

(11)

EP 0 241 509 A1

(12)

(43) Date of publication: 21.10.1987 Bulletin 1987/43 (21) Application number: 86906012.0 (22) Date of filing: 08.10.1986

(51) International Patent Classification (IPC):  B01D 53/ 86( . ) B01J 38/ 04( . ) (86) International application number: PCT/SE1986/000458 (87) International publication number: WO 1987/002272 (23.04.1987 Gazette 1987/09)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL (30) Priority: 14.10.1985 SE 19850004740 (71) Applicant: ÖBERG, Lars Ove S-710 16 Garphyttan (SE)	(72) Inventor: ÖBERG, Lars Ove S-710 16 Garphyttan (SE)