(19)
(11) EP 1 265 685 A2

(12)

(88) Date of publication A3:
23.05.2002

(43) Date of publication:
18.12.2002 Bulletin 2002/51

(21) Application number: 01920202.7

(22) Date of filing: 05.03.2001
(51) International Patent Classification (IPC)7B01D 17/05, B09C 1/02, B01D 17/04
(86) International application number:
PCT/US0106/996
(87) International publication number:
WO 0106/6274 (13.09.2001 Gazette 2001/37)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.03.2000 US 187122 P

(71) Applicant: THE LUBRIZOL CORPORATION
Wickliffe,Ohio 44092-2298 (US)

(72) Inventors:
  • BUSH, James, H.
    Mentor, OH 44060 (US)
  • JONES, Robert, N.
    Mentor, OH 44060 (US)
  • BARTLEY, Stuart, L.
    Wickliffe, OH 44092 (US)

(74) Representative: Crisp, David Norman et al
D. YOUNG & CO.21 New Fetter Lane
London EC4A 1DA
London EC4A 1DA (GB)

   


(54) SEPARATING AN EMULSION INTO AN AQUEOUS PHASE CONTAINING A REUSABLE ANIONIC SURFACTANT