(19)
(11) EP 2 366 036 A1

(12)

(43) Date of publication:
21.09.2011 Bulletin 2011/38

(21) Application number: 09767938.5

(22) Date of filing: 02.11.2009
(51) International Patent Classification (IPC): 
C22B 3/44(2006.01)
C22B 7/00(2006.01)
C22B 34/32(2006.01)
 C22B 3/08(2006.01)
C22B 23/00(2006.01)
C23G 1/36(2006.01)
(86) International application number:
PCT/EP2009/007925
(87) International publication number:
WO 2010/051992 (14.05.2010 Gazette 2010/19)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

(30) Priority: 06.11.2008 IT VA20080056

(71) Applicant: Condoroil Impianti S.r.l.
21020 Casale Litta (VA) (IT)

(72) Inventors:
  • ZAVATTONI, Marco
    I-21100 Varese (VA) (IT)
  • PIVA, Olga
    I-21046 Malnate (VA) (IT)
  • CAIMI, Roberto
    I-21050 Cairate (VA) (IT)

(74) Representative: Riccardi, Sergio 
Via M. Melloni, 32
20129 Milano
20129 Milano (IT)

   


(54) RECOVERY OF METALS AND ACIDS FROM EXHAUSTED PICKLING SOLUTIONS AND/OR NEUTRALIZATION SLUDGE