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3 焙烧过程中炼铜炉渣中铜,铁氧化物的氯气氯化反应

Table 3 Reactions during the roasting process between the copper, iron oxides and Cl2

Serial number Reactions T/K (7) CuO+Cl2(g)=CuCl2+1/2O2(g) 473~1073 CuO+Cl2(g)=CuCl2(g)+1/2O2(g) 1073~1873 (8) FeO+Cl2(g)=FeCl2+1/2O2(g) 473~1273 1/3Fe2O3+Cl2(g)=2/3FeCl3(g)+1/2O2(g) 1273~1873 (9) 1/3Fe2O3+Cl2(g)=2/3FeCl3+1/2O2(g) 473 ~873 FeO+Cl2(g)=FeCl2(g)+1/2O2(g); 873~1873 (10) 2/9Fe3O4+Cl2(g)=2/3FeCl3+4/9O2(g) 473~873 2/9Fe3O4+Cl2(g)=2/3FeCl3(g)+4/9O2(g) 873~1873 (11) Cu2O+Cl2(g)=2CuCl+1/2O2(g) 473~1873