硫酸-氯盐法浸出高铟氧粉酸浸渣中铜锌铅的试验研究  

Research on Leaching Cu,Zn and Pb from Acid Leaching Residues of High Indium Oxide Powder by Sulfuric Acid-chloride Method

作　　者：杨利姣[1] 钟夏平[2] 高军 郎耀秀[4] 陈南春[1] 刘长淼[5] 吴照洋[5] 王振峰 

机构地区：[1]桂林理工大学材料科学与工程学院,有色金属及材料加工新技术教育部重点实验室,广西矿冶与环境科学实验中心,广西桂林541004 [2]广西科学院,广西南宁530000 [3]广西金山铟锗冶金化工有限公司,广西河池547200 [4]河池学院,广西宜州546300 [5]中国地质科学院郑州矿产综合利用研究所,河南郑州450000

出　　处：《矿冶工程》2014年第4期75-78,82,共5页Mining and Metallurgical Engineering

基　　金：矿产资源高效综合利用技术与实用化研究(12120113088200);广西科技攻关(11107003-4);广西矿冶与环境科学实验中心资助项目(KH2011YB001)

摘　　要：通过分析高铟氧粉酸浸渣的成分和物相特征，发现其主要物相为Cu2 FeS2、ZnSO4、ZnS和PbSO4，由于成分复杂，单一方法无法有效回收铜、锌、铅，因此设计了硫酸-氯盐二段浸出法，分别提取酸浸渣中铜、锌和铅。一段浸出采用硫酸浸出，在始酸浓度60 g/L，液固比5∶1，氧化剂高锰酸钾用量4％，浸出温度60℃条件下，浸出2 h，铜和锌浸出率分别达到84．29％和92．02％；二段浸出采用氯盐浸出，在NaCl浓度300 g/L，液固比10∶1，pH＝1．5～2．0，浸出温度90℃条件下，浸出60 min，铅浸出率达到91．14％。该法对铜、锌和铅都有很好的浸出效果。It is found that Cu2FeS2, ZnSO4, ZnS and PbSO4 are the main phases in the acid leaching residues of high-indium oxide powder by analyzing the composition and phase characteristics of the residues. Single method can not effectively recover Cu, Zn and Pb due to the complex compositions. Therefore, two-stage sulfuric acid-chloride leaching method was adopted to recover Cu, Zn and Pb in the acid leaching residues. At the first stage, sulfuric acid leaching was carried out for 2 h at 60 ℃ with an initial H2 SO4 concentration of 60 g/L, KMnO4 dosage of 4% and liquid/solid ratio of 5∶1. The leaching rates of Cu and Zn were 84.29% and 92.02%, respectively. At the second stage, chloride leaching was carried out for 60 min at 90℃ with NaCl concentration of 300 g/L and liquid/solid ratio of 10∶1 and pH=1.5~2.0. The leaching rate of Pb was up to 91.14%. The results showed that the sulfuric acid-chloride leaching method has good leaching effects on Cu, Zn and Pb.

关 键 词：硫酸-氯盐法 高铟氧粉 酸浸渣 浸出 铜 锌 铅 

分 类 号：TF111[冶金工程—冶金物理化学]