(19)

(11)

EP 0 817 758 A1

(12)

(43) Date of publication: 14.01.1998 Bulletin 1998/03 (21) Application number: 96900503.0 (22) Date of filing: 31.01.1996

(51) International Patent Classification (IPC):  B01J 39/ 04( . ) C02F 1/ 42( . ) B01J 47/ 04( . ) (86) International application number: PCT/CZ1996/000004 (87) International publication number: WO 1997/028090 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: DE FR GB (71) Applicant: Aqua Rosa, Spol. S.R.O. 110 00 Praha 1 (CZ)	(72) Inventors: RIABOVA, Elizaveta K. Moskva (RU) SURMEL, Ludmila B. Moskva (RU) STUPIN, Nikolaj P. Moskva (RU) (74) Representative: Brierley, Anthony Paul, et al  Appleyard Lees 15 Clare Road Halifax West Yorkshire HX1 2HY Halifax West Yorkshire HX1 2HY (GB)