(19)
(11) EP 0 996 590 A1

(12)

(43) Date of publication:
03.05.2000 Bulletin 2000/18

(21) Application number: 98925868.6

(22) Date of filing: 23.06.1998
(51) International Patent Classification (IPC)7: C01F 7/14
(86) International application number:
PCT/GR9800/019
(87) International publication number:
WO 9858/876 (30.12.1998 Gazette 1998/52)
(84) Designated Contracting States:
CH DE ES FR GB GR IT LI

(30) Priority: 24.06.1997 GR 97100253

(71) Applicants:
  • National Technical University of Athens (NTUA)
    157 80 Zografos (GR)
  • Hellenic Alumina Industry S.A. (E.L.V.A.)
    Marousi 151 25 Attiki (GR)
  • UNIVERSITE LIBRE DE BRUXELLES
    1050 Bruxelles (BE)
  • Kontopoulou, Konstantina
    117 41 Athens (GR)
  • Kontopoulou, Eliza
    117 41 Athens (GR)
  • Kontopoulou, Marianna
    117 41 Athens (GR)

(72) Inventors:
  • PASPALIARIS, Ioannis
    GR-157 80 Zografos (GR)
  • PANIAS, Dimitrios
    GR-157 80 Zografos (GR)
  • SKOUFADIS, Christoforos
    GR-157 80 Zografos (GR)
  • KONTOPOULOS, Antonios
    deceased (GR)
  • BALLAS, Dimitrios
    GR-151 25 Attiki (GR)
  • PANOU, George
    B-1050 Bruxelles (BE)
  • RIGAS, George
    GR-151 25 Attiki (GR)
  • KALAITZOGLOU, Kostas
    GR-151 25 Attiki (GR)
  • COPPIETERS, Arnold
    B-1050 Bruxelles (BE)

(74) Representative: Samuelides, Emmanuel 
Leof. Alexandras 43
114 73 Athens
114 73 Athens (GR)

   


(54) PROCESS FOR PRODUCTION OF MONOHYDRATE ALUMINA FROM SUPERSATURATED ALUMINATE SOLUTIONS