硫酸焼鉱の脱銅焙焼と浸出 (第2報)
工業炉の検討とその結果
1966 年 82 巻 941 号 p. 763-769
詳細
1966 年 82 巻 941 号 p. 763-769
Iron sulfate was aimed to be utilized as a reaction reagent for sulfating roasting of pyrite cinder, intending to extract the containing copper by leaching. Optimum condition was obtained experimentally, and a mechanically raked multiple furnace was concluded as the most suitable type from chemical engineering standpoint. A 100t/day furnace was constructed and the good results were obtained. FeSO4·7H2O addition was observed a tendency to stick are at the drying hearth, and so FeSO4·H2O addition was prefered.
In the case of chloridizing roasting with rock salt, fine are is avoided because of sticking tendenig in the furnace. This ferrous sulfateaddition roasting can treat easily even all fine are charge.
Mixing with rock salt was effective in charge blending with copper smelting slag, in this roasting method.
