(19)
(11) EP 1 552 042 A1

(12)

(43) Date of publication:
13.07.2005 Bulletin 2005/28

(21) Application number: 03740525.5

(22) Date of filing: 17.07.2003
(51) International Patent Classification (IPC)7: C25F 1/04
(86) International application number:
PCT/FI2003/000572
(87) International publication number:
WO 2004/011699 (05.02.2004 Gazette 2004/06)
(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: 31.07.2002 FI 20021425

(71) Applicant: Outokumpu Oyj
02200 Espoo (FI)

(72) Inventors:
  • HYVÄRINEN, Olli
    FIN-28220 Pori (FI)
  • LEIPONEN, Matti
    FIN-00180 Helsinki (FI)

(74) Representative: Zipse + Habersack 
Wotanstrasse 64
80639 München
80639 München (DE)

   


(54) REMOVING SURFACE OXIDES FROM COPPER