Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation

doi:10.1016/S1003-6326(22)66108-9

IMR OpenIR

	Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation
	Wang, Long 1; Sun, Yuan 2,3; Wang, Shi-yang 2,3; Zhang, Ting-an 1; Lu, Guo-zhi 1
通讯作者	Sun, Yuan(yuansun@imr.ac.cn) ; Zhang, Ting-an(zta2000@163.net)
	2023
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	33 期号:1 页码:304-314
摘要	To improve the recovery efficiency of strategic metals from superalloy scrap, an ultrasonic-assisted leaching method was proposed. During the ultrasonic-assisted leaching process, at 60 min, the leaching rates of Re, Ni, Co, Al, Cr, and W are 92.3%, 95.2%, 98.5%, 98.7%, 97.5%, and 27.2%, respectively, which are far superior to those in the normal leaching process at 120 min. The improvement in leaching efficiency can be attributed to the physical and chemical coupling effects of ultrasonic cavitation. The physical effect can prevent the formation of the impeded dissolution layer and encourage contact between solution and superalloy scrap, which improves the leaching rates of strategic metals. The chemical effect can promote the production of hydroxyl radicals in the HCl-H2O2 system, which can enhance the potential of the leaching system, resulting in stimulation of the chemical oxidation process of Re to ReO4-.
关键词	strategic metals superalloy scrap leaching ultrasonic-assisted leaching hydroxyl radical
资助者	Chinese Academy of Sciences, China ; Science and Technology Project of Shen -Fu Reform and innovation Demonstration Zone, China ; National Natural Science Foundation of China
DOI	10.1016/S1003-6326(22)66108-9
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences, China[E055A101] ; Science and Technology Project of Shen -Fu Reform and innovation Demonstration Zone, China[2021JH15] ; National Natural Science Foundation of China[U1710257]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000923319900001
出版者	ELSEVIER
引用统计	被引频次：5[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/321006/175137
专题	中国科学院金属研究所
通讯作者	Sun, Yuan; Zhang, Ting-an
作者单位	1.Northeastern Univ, Key Lab Ecol Utilizat Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Joint Innovat Lab Green Comprehens Utilizat Supera, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Long,Sun, Yuan,Wang, Shi-yang,et al. Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2023,33(1):304-314.
APA	Wang, Long,Sun, Yuan,Wang, Shi-yang,Zhang, Ting-an,&Lu, Guo-zhi.(2023).Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,33(1),304-314.
MLA	Wang, Long,et al."Leaching mechanism of strategic metals from superalloy scrap under ultrasonic cavitation".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 33.1(2023):304-314.