(19)
(11)
EP 0 651 728 A1
(12)
(43)
Date of publication:
10.05.1995
Bulletin 1995/19
(21)
Application number:
93915547.0
(22)
Date of filing:
22.07.1993
(51)
International Patent Classification (IPC):
C01F
7/
06
( . )
(86)
International application number:
PCT/AU1993/000369
(87)
International publication number:
WO 1994/002416
(
03.02.1994
Gazette 1994/04)
(84)
Designated Contracting States:
ES IE
(30)
Priority:
24.07.1992
AU 1992PL03754
(71)
Applicant:
COMALCO ALUMINIUM, LTD.
Melbourne Victoria 3000 (AU)
(72)
Inventor:
CRISP, Anthony, John
Toowong, QLD 4066 (AU)
(74)
Representative:
Hallybone, Huw George
CARPMAELS AND RANSFORD 43 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)
(54)
PROCESS FOR EXTRACTING ALUMINA FROM BAUXITE