氯酸钠对铜阳极泥提取金的影响研究  

Effect of Sodium Chlorate on Gold Extraction from Copper Anode Slime

作　　者：梁柱俊 孙敬韬 LIANG Zhujun;SUN Jingtao(Guixi Smelter,Jiangxi Copper Corporation Limited,Guixi 335424,China)

机构地区：[1]江西铜业股份有限公司贵溪冶炼厂,江西贵溪335424

出　　处：《铜业工程》2023年第1期144-147,共4页Copper Engineering

摘　　要：在从铜阳极泥中提取金(Au)的生产过程中,为了减少氯酸钠(NaClO_(3))试剂的用量、降低分金渣中的Au含量,对氯化分金过程中NaClO_(3)的添加量、添加方式等进行了研究。结果表明,当NaClO_(3)的添加量为理论值的1.8倍,并以1∶3的固液比溶解后,在反应体系温度为55℃时,以110 min的时长匀速添加,再进行分金反应,得到的分金渣中的金含量可降低到60 g/t以下,NaClO_(3)的用量可减少28%以上。In the process of gold extraction from copper anode slime, in order to reduce the dosage of sodium chlorate reagent and the gold content in gold slag, the addition amount and method of sodium chlorate in the process of chlorination and gold extraction were studied. The results show that when the addition of sodium chlorate is 1.8 times of theoretical value, the solid-liquid ratio is 1∶3, the reaction system temperature is 55 ℃, and the addition time is 110 min, then the gold content in the gold slag can be reduced to below 60 g/t, and the amount of sodium chlorate can be reduced by more than 28%.

关 键 词：氯化分金 NaClO_(3) 添加量 添加方式 分金渣指标 

分 类 号：TF83[冶金工程—有色金属冶金]