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投稿时间:2019-04-12 修订日期:2019-04-16
投稿时间:2019-04-12 修订日期:2019-04-16
中文摘要: 以钽富集渣为原料,进行了浸出及萃取试验研究。结果表明:采用65%HF浸出、温度60 ℃、时间1 h、液固比4︰1,钽浸出率大于99%;选用MIBK-HF-H2SO4萃取体系,在钽质量浓度25 g/L、温度25 ℃、萃取时间3 min,H2SO4浓度2.5 mol/L、相比O/A=1/2时,钽、铪、钛、钨萃取率分别为86%、1.6%、0.2%和5.8%,实现钽与铪、钛、钨等金属离子的萃取分离。
Abstract:Leaching and extraction of tantalum-enrichment slag were conducted. The results show that tantalum leaching rate is 99% above under the leaching conditions including leaching agent of 65%HF, temperature of 60 ℃, leaching time of 1 h, and L/S=4/1. Extraction rate of Ta, Hf, Ti, W in MIBK-HF-H2SO4 system is 86%, 1.6%, 0.2% and 5.8%, respectively, under the conditions including mass concentration of tantalum of 25 g/L, extraction time of 3 min, sulfuric acid concentration of 2.5 mol/L, and O/A=1/2. Separation of tantalum from mixed solution of hafnium, titanium, and tungsten is realized.
keywords: tantalum-enrichment slag leaching MIBK extraction
文章编号: 中图分类号: 文献标志码:
基金项目:国家重点研发计划(2018YFC1901704)
作者 | 单位 | |
许万祥 | 西安瑞鑫科金属材料有限责任公司 | m13087575075@163.com |
李波 | 西安瑞鑫科金属材料有限责任公司 | |
王靖坤 | 西安瑞鑫科金属材料有限责任公司 | |
李进* | 西安瑞鑫科金属材料有限责任公司 | lijin_81@163.com |
周严 | 西安瑞鑫科金属材料有限责任公司 | |
郭瑞 | 西安瑞鑫科金属材料有限责任公司 |
Author Name | Affiliation | |
XU Wan-xiang | XI’AN RAREALLOYS CO.,LTD. | m13087575075@163.com |
LI Bo | ||
WANG Jing-kun | ||
LI Jin | lijin_81@163.com | |
ZHOU Yan | ||
GUO Rui |
引用文本:
许万祥,李波,王靖坤,李进,周严,郭瑞.富集渣中钽的回收提纯研究[J].有色金属(冶炼部分),2019(9):77-79.
XU Wan-xiang,LI Bo,WANG Jing-kun,LI Jin,ZHOU Yan,GUO Rui.Study on Recovery and Purification of Tantalum from Tantalum-Enrichment Slag[J].Nonferrous Metals (Extractive Metallurgy),2019(9):77-79.
许万祥,李波,王靖坤,李进,周严,郭瑞.富集渣中钽的回收提纯研究[J].有色金属(冶炼部分),2019(9):77-79.
XU Wan-xiang,LI Bo,WANG Jing-kun,LI Jin,ZHOU Yan,GUO Rui.Study on Recovery and Purification of Tantalum from Tantalum-Enrichment Slag[J].Nonferrous Metals (Extractive Metallurgy),2019(9):77-79.