用氯化焙烧法脱除炼铜炉渣中的铜*

李磊, 张仁杰, 胡建杭

Removal of Copper from Copper-smelting Slags through Chloridizing Roast

LI Lei, ZHANG Renjie, HU Jianhang

表6 温度为1073-1473 K反应(18)和(19)的吉布斯自由能变化及平衡常数

Table 6 Gibbs free energy and equilibrium constants of reaction (18) and (19) at 1073-1473 K

Reactions T/K 1073 1173 1273 1373 1473 (18) ΔGQ/(KJmol-1) -13.89 -10.44 -7.07 -3.76 -0.55 Equilibrium constants/k18 673.21 88.24 16.33 3.94 1.22 (19) ΔGQ/(KJmol-1) -13.70 -9.30 -4.97 -0.76 3.36 Equilibrium constants/k19 615.68 53.93 7.22 1.31 0.34