IMPROVED PROCESS FOR THE EXTRACTION OF ALUMINA FROM BAUXITE - Patent 0777628

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EP 0 777 628 A1

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(43)	Date of publication:
	11.06.1997 Bulletin 1997/24

(21)	Application number: 95928901.0

(22)	Date of filing: 23.08.1995

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International Patent Classification (IPC):

C01F 7/ 06^{( . )}

C01F 7/ 47^{( . )}

(86)	International application number:
	PCT/AU1995/000526

(87)	International publication number:
	WO 1996/006043 (29.02.1996 Gazette 1996/10)

(84)	Designated Contracting States:
	DE ES FR IE IT

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Priority:

23.08.1994 AU 1994PM07611

(71)	Applicant: COMALCO ALUMINIUM, LTD.
	Melbourne Victoria 3000 (AU)

(72)	Inventors:
	RODDA, Darren, Paul Thornbury, VIC 3071 (AU) SHAW, Raymond, Walter New Gisborne, VIC 3438 (AU)

(74)	Representative: Hallybone, Huw George, et al
	CARPMAELS AND RANSFORD 43 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)

(54)	IMPROVED PROCESS FOR THE EXTRACTION OF ALUMINA FROM BAUXITE