Extraction of Rare-Earth Metals During the Systematic Processing of Diaspore-Boehmite Bauxites / Loginova I. V.,Shoppert A. A.,Chaikin L. I. // METALLURGIST. - 2016. - V. 60, l. 1-2. - P. 198-203.

ISSN/EISSN:

0026-0894 / 1573-8892

Type:

Article

Abstract:

An integrated technology is proposed for processing diaspore-boehmite bauxites and extracting their useful components. It is established that sintering bauxite with a caustic alkali increases the quantities of rare-earth metals that are recovered. Experiments showed that the sintering of bauxite with a caustic alkali must be done with no more than 10-15\% moisture in the charge at the optimum temperature of 200A degrees C. Leaching of the sinter cake with water or a dilute aluminate solution forms high-iron red mud with low concentrations of alkali and alkaline-earth metals. Leaching the mud with a dilute inorganic acid makes it possible to extract up to 90\% of the rare-earth metals, including scandium oxide.

Author keywords:

bauxite; sintering; caustic alkali; red mud; rare-earth metals; scandium oxide

DOI:

10.1007/s11015-016-0273-z

Web of Science ID:

ISI:000376762700029

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1573-8892
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
Author-Email	loginova\_irina@mail.ru andreyshop@list.ru
ResearcherID-Numbers	Shoppert, Andrei/M-4886-2016
Funding-Acknowledgement	Russian Federal Government {[}02.A03.21.0006]
Funding-Text	This research was performed with financial support provided in accordance with Resolution No. 211 of the Russian Federal Government (Contract No. 02.A03.21.0006).
Number-of-Cited-References	13
Usage-Count-Last-180-days	11
Usage-Count-Since-2013	12
Journal-ISO	Metallurgist
Doc-Delivery-Number	DN0OH