高电流密度银电解新型药剂的应用及工艺优化研究  

Application of New Reagent for High Current Density Silver Electrolysis and Process Optimization Study

作　　者：杨少坤 佘忠智 雷宇 余小江 杨诚 周兴 YANG Shao-kun;SHE Zhong-zhi;LEI Yu;YU Xiao-jiang;YANG Cheng;ZHOU Xing(Yunnan Dianjin Investment Co.,Ltd.,Yunnan Gold&Mineral Group Co.,Ltd,Kunming,Yunnan 650000,China)

机构地区：[1]云南黄金矿业集团云南滇金投资有限公司,云南昆明650000

出　　处：《云南冶金》2024年第1期80-84,共5页Yunnan Metallurgy

摘　　要：针对高电流密度银电解精炼工艺中容易出现的酸度高、电解液寿命短、银粉晶型不合理(海绵体)、附属设备氧化腐蚀快、高温烧槽等问题,开发出了一种新型银电解药剂A与硝酸混合使用。通过生产实践,结果表明:在新型电解药剂A添加量在100 g/批时,银锭主品位达到99.997%。In the high current density silver electrolysis refining process,it is prone to appearing high acidity,short lifetime of electrolyte,unqualified silver powder crystalline(sponges),rapid oxidative corrosion,high temperature burner,and so on,therefore a new kind of silver electrolysis reagent A was developed,which is utilized with nitric acid.The production practice results show:when the additive amount of new type electrolysis reagent is 100 g/batch,the main grade of silver ingot can reach to 99.997%.

关 键 词：高电流密度 银电解 电解药剂 电银粉 酸度 

分 类 号：TF832[冶金工程—有色金属冶金]