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4 焙烧过程中炼铜炉渣中主要硫化物的氯气氯化反应

Table 4 Reactions during the roasting process between the main sulfides and Cl2

Serial number Reactions T/K (12) 1/2Cu2S+Cl2(g)=CuCl2+1/4S2(g) 473~1073 1/2Cu2S+Cl2(g)=CuCl2(g)+1/4S2(g) 1073~1873 (13) CuS+Cl2(g)=CuCl2+1/2S2(g) 473~1073 CuS+Cl2(g)=CuCl2(g)+1/2S2(g) 1073~1873 (14) FeS+Cl2(g)=FeCl2+1/2S2(g) 473 ~1273 FeS+Cl2(g)=FeCl2(g)+1/2S2(g) 1273~1873 (15) 2/3FeS+Cl2(g)=2/3FeCl3+1/3S2(g) 473~873 2/3FeS+Cl2(g)=2/3FeCl3(g)+1/3S2(g) 873~1873