(19)
(11) EP 1 492 905 A1

(12)

(43) Date of publication:
05.01.2005 Bulletin 2005/01

(21) Application number: 03743767.0

(22) Date of filing: 13.03.2003
(51) International Patent Classification (IPC)7C25C 3/28
(86) International application number:
PCT/AU2003/000306
(87) International publication number:
WO 2003/076690 (18.09.2003 Gazette 2003/38)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 13.03.2002 AU PS107102
19.06.2002 AU PS304902

(71) Applicant: BHP Billiton Innovation Pty Ltd
Melbourne,Victoria 3000 (AU)

(72) Inventors:
  • STREZOV, Les
    Adamstown, New South Wales 2289 (AU)
  • RATCHEV, Ivan
    Georgetown, New South Wales 2298 (AU)
  • OSBORN, Steve
    Valentine, New South Wales 2280 (AU)

(74) Representative: Jenkins, Peter David et al
PAGE WHITE & FARRER54 Doughty Street
London WC1N 2LS
London WC1N 2LS (GB)

   


(54) REDUCTION OF METAL OXIDES IN AN ELECTROLYTIC CELL