DBPapers
DOI: 10.5593/sgem2012/s03.v1048

RARE EARTHS CONCENTRATES PRODUCTION FROM URANIUM ORES OF DIFFERENT COMPOSITIONS

T. YU. SURKOVA, A. S. MUKUSHEVA, S. B. YULUSSOV, D. A. BEISAHMETOV
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 1, 765 - 770 pp

ABSTRACT

Kazakhstan with its diversified geological conditions and largest reserves of different
minerals is high on the list of natural uranium stocks all over the world. Deposits of
natural uranium in Kazakhstan are notable for their extremely diversified mineralogical
and chemophysical compositions. So, the most uranium ores are characterized by
complex compositions and contain such valuable components as molybdenum,
zirconium, vanadium, tungsten, scandium, rhenium and rare earths. Mentioned metals
are present not only in ore-hosting rocks, but also in uranium minerals. Valuable
components recovery as by-products substantially cheapens uranium production
processes. With due consideration of sharply increased world demand in rare earths
elements (REE) our scientific emphasis was upon development of REE associated
recovery technology providing uranium concentrates production through processing
uranium ores of different mineralogical and phase compositions. Study data on rare
earths elements sorption-desorption from industrial uranium-containing solutions of
complex compositions with their further deposition allowed to propose our conceptual
flow diagram of rare earths concentrates production.

Keywords: rare earths elements, carbonate and phosphate uranium ore, heap leaching,
underground leaching, hydrolytic process of deposition, sorption.