铜冶炼制酸酸泥高效浸出工艺研究  

Study on Efficient Leaching Process of Acid Mud from Copper Smelting

作　　者：李晓恒 王永辉[2] 崔育涛 田静 孙婷婷 无 LI Xiaoheng;WANG Yonghui;CUI Yutao;TIAN Jing;SUN Tingting;无(Henan Key Laboratory of Comprehensive Utilization of Gold Resources,Sanmenxia Henan 472000,China;Sanmenxia Vocational and Technical College,Sanmenxia Henan 472000,China;Henan Engineering Research Center for Comprehensive Utilization of Gold Resources,Sanmenxia Henan 472000,China;Henan Zhongyuan Gold Smelter Co.,Ltd.,Sanmenxia Henan 472000,China)

机构地区：[1]河南省黄金资源综合利用重点实验室,河南三门峡472000 [2]三门峡职业技术学院,河南三门峡472000 [3]河南省黄金资源综合利用工程技术研究中心,河南三门峡472000 [4]河南中原黄金冶炼厂有限责任公司,河南三门峡472000

出　　处：《绿色矿冶》2025年第1期60-64,共5页Sustainable Mining and Metallurgy

摘　　要：针对铜冶炼烟气制酸系统产出的酸泥,依据其多元素分析和物相分析结果,采用常压氧化浸出工艺将酸泥的铜、硒、汞与金、银、铅等金属分离,使铜、硒和汞进入浸出液中,金、银和铅则留在渣中形成贵铅渣,从而实现酸泥中有价元素的分离回收。考察影响铜、硒、汞浸出效果的各因素,确定了酸泥氧化浸出的最佳工艺条件:液固比2∶1、反应温度75℃、反应时间3 h、氯酸钠用量为理论量的2.0倍。在此条件下,铜、硒、汞的浸出率分别达到95%、96%、99%以上,实现了从酸泥中分离有价元素的目的。According to the results of multi-element analysis and phase analysis of the acid sludge produced by the acid system of copper smelting flue gas,the copper,selenium,mercury and gold,silver,lead and other metals of the acid sludge were separated by atmospheric pressure oxidation leaching process,so that copper,selenium and mercury entered the leaching solution,while gold,silver and lead remained in the slag to form precious lead slag,so as to realize the separation and recovery of valuable elements in the acid sludge.The factors affecting the leaching effect of copper,selenium and mercury were investigated,and the optimum process conditions for the oxidative leaching of acid mud were determined:liquid-solid ratio 2∶1,reaction temperature 75℃,reaction time 3 h,and sodium chlorate dosage 2.0 times of the theoretical amount.Under these conditions,the leaching rates of copper,selenium and mercury reached more than 95%,96%and 99%,respectively,which achieved the purpose of separating valuable elements from acid mud.

关 键 词：铜冶炼 酸泥 常压 氧化浸出 分离回收 

分 类 号：X758[环境科学与工程—环境工程] TF803[冶金工程—有色金属冶金]