从锡渣中回收铌、钽的试验研究  

Experimental Study on Niobium and Tantalum Recovery from Tin Residues

作　　者：陈华君 翟忠标 欧根能 杨勇 刘维维 CHEN Hua-jun;ZHAI Zhong-biao;OU Geng-neng;YANG Yong;LIU Wei-wei(Kunming Metallurgical Research Institute Co.,Ltd.,Kunming,Yunnan 650031,China;Jingmen Green Recycling Electronic Waste Disposal Co.,Ltd.,Jingmen,Hubei 448000,China)

机构地区：[1]昆明冶金研究院有限公司,云南昆明650031 [2]荆门格林循环电子废弃物处置有限公司,湖北荆门448000

出　　处：《云南冶金》2023年第S01期116-120,共5页Yunnan Metallurgy

摘　　要：采用还原氯化法从锡渣中回收铌、钽,其最佳工艺条件是初始碳含量为14%,反应温度为800℃,反应时间为(30~40) min,氯气流量为0.10 L/min,铌、钽挥发率在95%以上。锡渣在还原氯化前先采用酸洗方法,对提高铌、钽的纯度有利。Niobium and tantalum recovery from tin residues has been carried out by using of reduction-chlorination method,the optimal process conditions were:the initial carbon content was 14%,the reaction temperature was 800℃,the reaction time was(30~40)min,the chlorine flow was 0.10 L/min,the volatilization rate of niobium and tantalum was more than 95%.Acid pickling of tin residues should be carried out before reduction-chlorination in order to improve the purity of niobium and tantalum.

关 键 词：锡渣 铌钽 还原氯化 资源综合利用 

分 类 号：TF814[冶金工程—有色金属冶金] TF841.6