(19)
(11) EP 1 773 971 A1

(12)

(43) Date of publication:
18.04.2007 Bulletin 2007/16

(21) Application number: 05744662.7

(22) Date of filing: 16.05.2005
(51) International Patent Classification (IPC): 
C10M 175/00(2006.01)
C10G 31/10(2006.01)
C10M 175/02(2006.01)
(86) International application number:
PCT/SE2005/000701
(87) International publication number:
WO 2005/111181 (24.11.2005 Gazette 2005/47)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30) Priority: 17.05.2004 SE 0401291

(71) Applicant: Viatech Systems AB
146 37 Tullinge (SE)

(72) Inventor:
  • STRĂ–M, Gunnar
    112 27 Stockholm (SE)

(74) Representative: Holmberg, Martin Tor 
Bergenstrahle & Lindvall AB P.O. Box 17704
118 93 Stockholm
118 93 Stockholm (SE)

   


(54) PROCESS FOR THE PURIFICATION OF SPENT PROCESS OIL