Distribution of Gold and Silver between Copper and Matte
作者： S. N. Sinha , H. Y. Sohn , M. Nagamori
DOI: 10.1007/BF02657488
关键词:
摘要: The distribution coefficients of silver and gold between copper matte phases have been measured at 1400 1500 K. For 0.07 to 0.13 wt pct 0.0022 0.0042 in ironfree matte, the are independent concentration. iron-bearing correlated with iron content matte. From values gold, activity AgS0.5 Au copper-saturated calculated. following correlations express these results: log γ°AgS0.5(1) = -425/T - 0.074 + 0.09NFeS, γ°Au(1) =-7620/T 7.25 forT K NFeS, mole fraction FeS 0 0.28. present must be used exclusively conjunction Gibbs free energy formation: 2Ag(l) 1/2S2(g) Ag2S(l), ΔG° -23960 10.295T (cal/mol).
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