PROCESS FOR PREPARING ULTRA-WHITE ALUMINA TRIHYDRATE - Patent 0788571

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EP 0 788 571 A1

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(43)	Date of publication:
	13.08.1997 Bulletin 1997/33

(21)	Application number: 94926497.0

(22)	Date of filing: 23.08.1994

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International Patent Classification (IPC):

C09C 1/ 40^{( . )}

D21H 17/ 67^{( . )}

(86)	International application number:
	PCT/US1994/009142

(87)	International publication number:
	WO 1996/006225 (29.02.1996 Gazette 1996/10)

(84)	Designated Contracting States:
	DE FR GB

(71)	Applicant: REYNOLDS METALS COMPANY
	Richmond, Virginia 23230-1701 (US)

(72)	Inventor:
	ARMBRUST, Bernard, P., Jr. Benton, AR 72015 (US)

(74)	Representative: Örtenblad, Bertil Tore, et al
	Noréns Patentbyra AB P.O. Box 10198 100 55 Stockholm 100 55 Stockholm (SE)

(54)	PROCESS FOR PREPARING ULTRA-WHITE ALUMINA TRIHYDRATE