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- W2557288771 abstract "The dissolution characteristics of galena in ferric nitrate system [(FeNO3)3-1M NaNO3] has been studied function of ferric ion concentration, temperature and particle size. All reactions were conducted in a constant temperature bath thermostatically controlled between temperatures of 0 and 100 o C. Apart from the determination of the dependence of leaching rate on particle size, uniform particle size of 20 x 40 mesh was used throughout the experiment. Generally leaching rate was seen to increase with increase in temperature and ferric ion concentration but decreased with increase in particle size. The reaction kinetics show that chemical reaction, attributed to electrochemical oxidation of sulphide and reduction of ferric ion occurring at the reaction interface, is the controlling mechanism. The reaction order was 0.47 and the activation energy obtained was 47.87kJ/mole. At all concentrations of nitrate ions, there was no evidence of formation of insoluble salts as is prevalent in ferric chloride systems." @default.
- W2557288771 created "2016-12-08" @default.
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- W2557288771 date "2015-01-01" @default.
- W2557288771 modified "2023-09-27" @default.
- W2557288771 title "Dissolution Characteristics of Galena in Aqueous Ferric Nitrate Lixiviant" @default.
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