碱性硫化钠浸出含锑金精矿的试验与工业实践

摘要

Antimony in antimony-bearing gold concentrates was recovered by alkaline sodium sulphide leaching,and segregation-free electrodeposition.Based on small-scale experiment,industrial practice was carried out according to actual conditions of production site.After optimization of process parameters of electrodeposition,comprehensive leaching rate of antimony is 96.72％,purity of cathode antimony is 96.36％,antimony concentration in barren liquor is 5.54 g/L,comprehensive current efficiency is 63.84％,and NaOH consumption for one ton antimony is 617.2 kg.%采用碱性硫化钠浸出—无隔膜电积的方法回收含锑金精矿中的锑,在小型试验基础上根据生产场地的实际情况进行了工业实践.通过对电积过程工艺参数优化,锑综合浸出率为96.72％,回收阴极锑纯度96.36％,贫液含锑5.54 g/L,综合电流效率63.84％,吨锑氢氧化钠消耗量617.2 kg.