从某萃余液除杂后液中回收钴的试验研究
Multipurpose Utilization of Mineral Resources（2020）
Abstract
对某氧化铜钴矿酸浸萃余液除杂后液进行两段沉淀回收钴,一段沉淀采用活性氧化镁,二段沉淀采用石灰,并对二段沉钴后液用石灰进行沉镁.试验结果表明,一段沉钴常温搅拌7h,氧化镁用量2 kg/m3,一段沉钴后液钴浓度为0.18g/L,钴沉淀率为91.22％,钴渣含钴28.80％;两段沉钴合计钴沉淀率为98.86％,二段钴渣含钴3.75％,可返回浸出.
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