Technological condition in slurry electrolysis of high-silver galena concentrate
来源期刊：中国有色金属学报(英文版)2002年第2期
论文作者：陈凌 杨显万 司云森 张英杰
文章页码：344 - 348
Key words：slurry electrolysis; technological condition; galena
Abstract: 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 investigat ed. As a result, the suitable condition was determined as: ρ(Cl-)230g/L, ρ(Fe)T15g/L, pH 1, temperature 70℃, electrolysis time 6h. Under such condition, adopting the cathodic current density of 150A/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.
