(19)

(11)

EP 0 029 029 A1

(12)

(43) Date of publication: 27.05.1981 Bulletin 1981/21 (21) Application number: 80900128.0 (22) Date of filing: 04.01.1980

(51) International Patent Classification (IPC):  B01D 7/ 00( . ) B08B 5/ 00( . ) B01J 19/ 10( . ) B08B 7/ 02( . ) (86) International application number: PCT/SE1980/000003 (87) International publication number: WO 1980/001358 (10.07.1980 Gazette 1980/15)

(84) Designated Contracting States: AT CH DE FR GB LU NL SE (30) Priority: 04.01.1979 SE 19790000067 (71) Applicant: MATS OLSSON KONSULT AB S-114 86 Stockholm (SE)	(72) Inventor: OLSSON, Mats Anders S-161 39 Bromma (SE)