Recovery of Rare Metals from Superalloy Scraps by an Ultrasonic Leaching Method with a Two-Stage Separation Process

doi:10.3390/separations9070184

IMR OpenIR

	Recovery of Rare Metals from Superalloy Scraps by an Ultrasonic Leaching Method with a Two-Stage Separation Process
	Wang, Long 1,2,3; Lu, Sujun 1; Fan, Jiayuan 3; Ma, Yutian 1; Zhang, Juan 1; Wang, Shiyang 3; Pei, Xiaoyao 3; Sun, Yuan 3; Lv, Guozhi 2; Zhang, Tingan 2
通讯作者	Sun, Yuan(yuansun@imr.ac.cn) ; Zhang, Tingan(zta2000@163.net)
	2022-07-01
发表期刊	SEPARATIONS
卷号	9 期号:7 页码:14
摘要	Superalloy scraps are deemed as potential unconventional sources of rare metals. In this study, an ultrasonic leaching method with a two-stage separation process was proposed. A series of Eh-pH diagrams for rare metals was constructed, and the results indicated that the leaching and separation process could be realized by adjusting the potential and pH values of leaching solutions. In the ultrasonic leaching process, results showed that the economic leaching percentages of Re, Ni, Co, Al, and Cr were 92.3%, 95.2%, 98.5%, 98.7%, and 97.5%, respectively. Compared with conventional leaching, ultrasonic leaching can improve the leaching percentages of rare metals by approximately 20%. In the two-stage separation process, the optimal recovery efficiencies of Al and Cr were 94.6% and 82.1% at a pH of 4.5, and Ni and Co were 99.5% and 98.3% at a pH of 7.5. With a two-stage precipitate process, rare metals can be efficiently recovered without generating any waste acid.
关键词	superalloy scraps Eh-pH diagram ultrasonic leaching passivation layer precipitates separation
资助者	State Key Laboratory of Comprehensive Utilization of Nickel and Cobalt Resources ; Chinese Academy of Sciences ; Science and technology project of Shen-Fu Reform and innovation Demonstration Zone ; Shenyang Science and Technology Plan ; National Natural Science Foundation of China ; National Key Research and Development Program of China
DOI	10.3390/separations9070184
收录类别	SCI
语种	英语
资助项目	State Key Laboratory of Comprehensive Utilization of Nickel and Cobalt Resources[E041A104Z1] ; Chinese Academy of Sciences[E055A101] ; Science and technology project of Shen-Fu Reform and innovation Demonstration Zone[2021JH15] ; Shenyang Science and Technology Plan[20-203-5-19] ; National Natural Science Foundation of China[U1710257] ; National Key Research and Development Program of China[2021YFB3700401]
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
WOS记录号	WOS:000833797600001
出版者	MDPI
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174712
专题	中国科学院金属研究所
通讯作者	Sun, Yuan; Zhang, Tingan
作者单位	1.Jinchuan Grp Co Ltd, State Key Lab Comprehens Utilizat Nickel & Cobalt, Jinchang 737100, Peoples R China 2.Northeastern Univ, Key Lab Ecol Utilizat Multimetall Mineral, Minist Educ, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Long,Lu, Sujun,Fan, Jiayuan,et al. Recovery of Rare Metals from Superalloy Scraps by an Ultrasonic Leaching Method with a Two-Stage Separation Process[J]. SEPARATIONS,2022,9(7):14.
APA	Wang, Long.,Lu, Sujun.,Fan, Jiayuan.,Ma, Yutian.,Zhang, Juan.,...&Zhang, Tingan.(2022).Recovery of Rare Metals from Superalloy Scraps by an Ultrasonic Leaching Method with a Two-Stage Separation Process.SEPARATIONS,9(7),14.
MLA	Wang, Long,et al."Recovery of Rare Metals from Superalloy Scraps by an Ultrasonic Leaching Method with a Two-Stage Separation Process".SEPARATIONS 9.7(2022):14.