Scholarly record

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

Рђ. Baibatsha, K. Dyusembaeva, J. Sazhin

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].

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