Technological condition in slurry electrolysis of high-silver galena concentrate
摘要
Effects of various technological conditions such as ρ (Cl-),ρ (Fe)T,pH value and temperature on the cell voltage,lead leaching rate and the cathodic current efficiency of the slurry electrolysis of high-silver galena concentrate were studied,and the behavior regularity of lead and silver was investigated.As a result,the suitable condition was determined as: ρ (Cl-) 230 g/L,ρ (Fe)T 15 g/L,pH 1,temperature 70 ℃,electrolysis time 6 h.Under such condition,adopting the cathodic current density of 150 A/m2 and the liquid-solid ratio of 15∶1,lead powder with a purity degree of 91.18% was got.At the same time,leaching rate of lead,leaching rate of silver and cathodic current efficiency amounted to 96.88%,70.88% and 75.68% respectively.
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陈凌, 杨显万, 司云森, 等. Technological condition in slurry electrolysis of high-silver galena concentrate[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2002.
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