(19)
(11) EP 1 001 911 A1

(12)

(43) Date of publication:
24.05.2000 Bulletin 2000/21

(21) Application number: 98936427.8

(22) Date of filing: 16.07.1998
(51) International Patent Classification (IPC)7: C02F 1/44, B01D 61/58
// B05B15:02
(86) International application number:
PCT/EP9804/422
(87) International publication number:
WO 9903/786 (28.01.1999 Gazette 1999/04)
(84) Designated Contracting States:
AT BE DE ES FI FR GB IT NL PT SE

(30) Priority: 17.07.1997 EP 97112200

(71) Applicant: PPG Industries Lacke GmbH
42329 Wuppertal (DE)

(72) Inventors:
  • KASCHA, Dietmar
    D-65760 Eschborn 2 (DE)
  • MANDERSCHEID, Karl
    D-50935 Köln (DE)
  • LINDEMANN, Johannes
    D-53619 Rheinbreitbach (DE)

(74) Representative: Patentanwälte Sternagel & Fleischer 
Braunsberger Feld 29
51429 Bergisch Gladbach
51429 Bergisch Gladbach (DE)

   


(54) METHOD OF TREATING SOLVENT-CONTAINING PROCESS LIQUIDS