(19)
(11) EP 1 680 532 A1

(12)

(43) Date of publication:
19.07.2006 Bulletin 2006/29

(21) Application number: 04789581.8

(22) Date of filing: 14.10.2004
(51) International Patent Classification (IPC): 
C25C 5/00(1974.07)
(86) International application number:
PCT/AU2004/001410
(87) International publication number:
WO 2005/038092 (28.04.2005 Gazette 2005/17)
(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 PL PT RO SE SI SK TR

(30) Priority: 14.10.2003 AU 2003905595

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

(72) Inventors:
  • RIGBY , Gregory, David
    Charles Town, New South Wales 2290 (AU)
  • RATCHEV, Ivan
    Georgetown, New South Wales 2298 (AU)
  • SHOOK , Andrew, Arthur
    Eleebana, New South Wales 2282 (AU)

(74) Representative: Jenkins, Peter David et al
PAGE WHITE & FARRER 54 Doughty Street
London WC1N 2LS
London WC1N 2LS (GB)

   


(54) ELECTROCHEMICAL REDUCTION OF METAL OXIDES