The Scientific Grounds for Development of the New Reagents Mode for Platinum-containing Minerals Concentration from Copper-nickel Ores
The results of development of new collecting reagents selectively interacting with the metals of platinum group (MPG) are presented. A new approach to the concentration of the platinum minerals from the free grade platinum containing products with the use of cloud point polymers for the first time proposed for this purpose is discussed.An original method for the investigation of complexing reagents with the platinum under flotation conditions developed by authors is described. The influence of the complexing reagents on the xanthate adsorption and on the electrochemical properties of the platinum arsenide surface (sperrylite) as well with the interaction mechanism between the reagent and metallic platinum were investigated by means of the modem physical and physicochemical methods of the solid and fluid phase studies.The results of tests of some complexing reagents with the rich copper-nickel ore in the cycle of nickel-pyrrhotite flotation are given. The data obtained makes it possible to mark the complexing reagent containing phosphine group as the most effective additional collector for MPG.Cloud point polymers containing thioamide, aminosulphide, and phosphine functional groups were examined. It is shown that all the reagents tested increase the platinum and palladium extraction to the nickel-pyrrhotite concentrate without quality loss. Platinum containing particles flocculate selectively.
Metals of platinum group Complexing reagents Cloud point polymers Copper-nickel ore
V.A. Chanturiya T.V. Nedosekina
Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences (IPKON), Moscow, Russia
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
1493-1502
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）