(19)
(11) EP 1 250 308 A1

(12)

(43) Date of publication:
23.10.2002 Bulletin 2002/43

(21) Application number: 00979877.8

(22) Date of filing: 30.11.2000
(51) International Patent Classification (IPC)7C07C 51/43, C07C 63/26
(86) International application number:
PCT/IB0001/898
(87) International publication number:
WO 0104/9647 (12.07.2001 Gazette 2001/28)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 29.12.1999 US 173607 P

(71) Applicant: Inca International S.P.A.
20151 Milan (IT)

(72) Inventors:
  • PIRAS, Luciano
    I-20141 Milan (IT)
  • SCHENA, Sergio
    I-46100 Mantova (IT)
  • CHIARELLI, Michelle
    I-27015 Landriano (IT)
  • SORO, Luigi
    I-09074 Ghilarza (IT)

(74) Representative: Geary, Stephen 
W.H. Beck, Greener & Co.7 Stone BuildingsLincoln's Inn
London WC2A 3SZ
London WC2A 3SZ (GB)

   


(54) PROCESS FOR THE RECOVERY OF PURIFIED TEREPHTHALIC ACID (PTA)