(19)

(11)

EP 1 756 252 A1

(12)

(43) Date of publication: 28.02.2007 Bulletin 2007/09 (21) Application number: 05752458.9 (22) Date of filing: 22.04.2005

(51) International Patent Classification (IPC):  C10L 1/08(2006.01) (86) International application number: PCT/ZA2005/000060 (87) International publication number: WO 2005/105961 (10.11.2005 Gazette 2005/45)

(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: 28.04.2004 ZA 200403179 (71) Applicant: Sasol Technology (Pty) Ltd 2196 Johannesburg (ZA)	(72) Inventor: SCHABERG, Paul Werner 7979 Noordhoek (ZA) (74) Representative: Samson & Partner  Widenmayerstrasse 5 80538 München 80538 München (DE)