有色金属(冶炼部分)

锑金矿先碱浸获得含锑溶液,含锑溶液经旋流电解析出阴极锑。与传统平板锑电解相比,旋流电解法可用高电流密度、环境友好、电流效率高,并且能处理低品位矿。对于含锑6.59g/L溶液,在电流密度254.8A/m2、循环流量2.5 m3/h、时间6h的条件下,阴极析锑电流效率为43.80%,吨锑电耗6 157kWh。对于含锑23.14g/L溶液,在电流密度647.3A/m2、循环流量2.5m3/h、时间5h的条件下,阴极析锑电流效率为72.2%,吨锑电耗4 372kWh。

Antimony gold ore was alkaline leached to obtain antimony containing solution from which,cathode antimony was produced by cyclone electrolysis.Compared with traditional plate electrolysis,antimony cyclone electrolysis method has the advantages of high current density,favorable environment,high current efficiency,and ability to treat low grade ore.For solutions with antimony concentration of 6.59 g/L,current efficiency of cathode discharge is 43.80% and power consumption of per ton antimony is 6 157 kWh under the conditions including current density of 254.8 A/m²,circulation flow of 2.5 m³/h,and time of 6 h.For solutions with antimony concentration of 23.14 g/L,current efficiency of cathode discharge is 72.2% and power consumption of per ton antimony is 4 372 kWh under the conditions including current density of 647.3 A/m²,circulation flow of 2.5 m³/h,and time of 5 h.