(19)
(11) EP 1 749 109 A2

(12)

(88) Date of publication A3:
13.04.2006

(43) Date of publication:
07.02.2007 Bulletin 2007/06

(21) Application number: 05744383.0

(22) Date of filing: 12.05.2005
(51) International Patent Classification (IPC): 
C21C 5/32(2006.01)
C21C 5/46(2006.01)
(86) International application number:
PCT/GB2005/001857
(87) International publication number:
WO 2005/111247 (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: 14.05.2004 GB 0410835
19.11.2004 GB 0425540

(71) Applicant: THE BOC GROUP, INC.
Murray Hill, New Jersey 07974 (US)

(72) Inventors:
  • CAMERON, Andrew, Miller
    Derbyshire DE4 5WA (GB)
  • RICHARDSON, Andrew, Peter
    Clinton, NJ 08809 (US)
  • BATHAM, John, Kelvin
    Beverly East Riding Yorkshire HU17 7RF (GB)
  • WILKINSON, Mark, A.
    Lincoln, MA 01773 (US)
  • STRELBISKY, Michael, James
    Burlington, Ontario L7M-4E9 (CA)

(74) Representative: Wickham, Michael 
C/o Patent and Trademark Department The BOC Group plc Chertsey Road Windlesham
Surrey GU20 6HJ
Surrey GU20 6HJ (GB)

   


(54) REFINING MOLTEN METAL