Preparation of active aluminum hydroxide and its use for production of finely dispersed alumina / Loginova I. V.,Shoppert A. A. // RUSSIAN JOURNAL OF NON-FERROUS METALS. - 2014. - V. 55, l. 3. - P. 234-237.

ISSN/EISSN:

1067-8212 / 1934-970X

Type:

Article

Abstract:

The preparation of active aluminum hydroxide from the alkali-aluminate solution of the Bayer process with the help of aluminum salt is investigated. For this purpose the ability of the nonuniform crystal growth at low temperatures and without stirring was used. Finally, a precipitate with a high specific surface, which is easily soluble in acids and alkalis, is formed. The activation energy of obtaining active aluminum hydroxide is determined experimentally. This energy constituted 155.4 kJ/mol, which points to the kinetic process mode despite the absence of stirring. The possibility of applying active aluminum hydroxide as a seed for the production of well-crystallized finely dispersed aluminum hydroxide powder, which can be used to fabricate aluminum oxide for nonmetallurgical applications is shown.

Author keywords:

active aluminum hydroxide; precipitation; aluminate solution; aluminum sulfate; alumina

DOI:

10.3103/S1067821214030080

Web of Science ID:

ISI:000339330100004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	ALLERTON PRESS INC
Address	18 WEST 27TH ST, NEW YORK, NY 10001 USA
Language	English
EISSN	1934-970X
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	loginova\_irina@mail.ru
ResearcherID-Numbers	Shoppert, Andrei/M-4886-2016
Number-of-Cited-References	10
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	18
Journal-ISO	Russ. J. Non-Ferrous Metals
Doc-Delivery-Number	AL7QP