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MINERALOGICAL AND TECHNOLOGICAL STUDIES OF MICRO-AND NANOGOLD DEPOSITS OF KAZAKHSTAN

AUTHOR/S: А. BAIBATSHA, K. DYUSEMBAEVA, J. SAZHIN
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 1181-1186 pp

ABSTRACT

The mineralogical and technological study of gold ores and dressing products
demonstrate the persistence of both the ores and products of their dressing, especially
Floatation concentrates. The gold loss in the tails of Floatation beneficiation are
primarily associated with the smallest size fractions less than 20 microns, which make
up to 70% of the total lost gold in the Floatation tails. It is obvious that increasing the
extraction of gold by Floatation is directly linked to the development of the
technological mode of Floatation (fineness of grinding, reagent regime, and the scheme
of Floatation enrichment). Mineralogical studies show that the vast majority of native
gold in sulphides is in the form of fine powder and fine particles [1].
Gold production in Kazakhstan is ensured by proper exploitation of proper gold, gold
deposits of copper complex and polymetallic ores. Gossans are considered as proven
reserves of gold by about 237 plants. The largest gold deposits are: Vasilkovsk,
Bakyrchik and Akbakay. An increase in the potential resources of gold exploration in
the complexes, gold-copper-porphyry is expected, as well as an expansion of using costeffective,
untraditional technologies to develop the gold deposits such as heap, bacterial
leaching, etc. [5].