Now showing 1 - 3 of 3
(Stef92 Technology, 2011-06-20, Mukusheva, Ayim)
Complex uranium ores of Kazakhstan are a potential raw source of gold and RRE, for example, scandium. Experime ntal researches on opening of ores various leaching systems are spent. It is shown, that uran ium accompanying metals can be extracted in solutions.
(Stef92 Technology, 2011-06-20, Koizhanova, Aigul)
We present the results of precious metals leaching from stubborn sulphidic silver-and- gold-containing ore of Kazakhstani deposit Kunisty by complex cyanide −thiosulphate solutions in comparison with separate cyanide and thiosulphate solutions in the model and experimental conditions. It is establis hed, that in a range of investigated concentrations 0,03 - 0,1 M, application of complex cyanide −thiosulphate solutions leads to change of oxidation-reduction potential of the solutions by 50÷200 mV. The degree of lea...
(Stef92 Technology, 2011-06-20, Akhmetova, Kuralay)
It is proposed to process gold mine man-made wastes through ultrasonic activation of source materials in water, then in an alkaline solution with subsequent cyanidation of gold-impregnated cakes, or direct cyan idation and sorption conditioning of gold multicomponent solutions with nano-structured anionite an av erage radius of pores of which is within 600-700 Ǻ that contains no more than 6-8% of strong-base groups. A preliminary withdrawal of elements accompanying gold ensures obtaining of good- quality target me...
