A novel method for the separation of zinc and cobalt from hazardous zinc-cobalt slag via an alkaline glycine solution

doi:10.1016/j.seppur.2021.119009

	A novel method for the separation of zinc and cobalt from hazardous zinc-cobalt slag via an alkaline glycine solution
	Huang, Yukun 1,2; Guo, Haojie 2; Zhang, Chen 2; Liu, Bihe 2; Wang, Lihong 2; Peng, Weijun 2; Cao, Yijun 2; Song, Xiangyu 2; Zhu, Xiaofeng 3
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2021-10-15
卷号	273
关键词	Zinc-cobalt slag Alkaline glycine solution Selective dissolution Separtion
ISSN号	1383-5866
DOI	10.1016/j.seppur.2021.119009
英文摘要	Zinc-cobalt slag, a hazardous waste from hydrometallurgical zinc smelting, is an important secondary source of cobalt; however, the separation of zinc and cobalt is a serious problem in cobalt recovery. A novel approach was proposed to separate zinc and cobalt via an alkaline glycine solution. This innovative method selectively dissolves zinc and cadmium from the slag with a high yield, leaving most of the cobalt and manganese in the residue. The dissolution ratios of zinc and cadmium are 93.81% and 87.64%, respectively, under optimal conditions (pH 10, 45 degrees C, glycine concentration of 100 g/L, L/S ratio of 40:1, and a reaction time of 180 min). In contrast, the dissolution ratios of cobalt and manganese are almost negligible. Substantial separation of zinc and cobalt occurred as the separation factor reached a value of 736.8. The recovery of zinc and cadmium from the glycine leachate was accomplished by precipitation with an oxalic acid solution, and the precipitation ratios were 97.7% and 99.0%, respectively. The use of glycine as the leaching agent successfully separated zinc and cobalt, which allowed for the recovery of cobalt, and also enabled the recovery of zinc and cadmium.
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000668970400004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148850]
专题	材料科学与工程学院
作者单位	1.Zhengzhou Univ, Prov & Ministerial Coconstruct Collaborat Innovat, Zhengzhou, Peoples R China 2.Zhengzhou Univ, Sch Chem Engn, Zhengzhou 450001, Peoples R China; 3.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China;
推荐引用方式 GB/T 7714	Huang, Yukun,Guo, Haojie,Zhang, Chen,et al. A novel method for the separation of zinc and cobalt from hazardous zinc-cobalt slag via an alkaline glycine solution[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2021,273.
APA	Huang, Yukun.,Guo, Haojie.,Zhang, Chen.,Liu, Bihe.,Wang, Lihong.,...&Zhu, Xiaofeng.(2021).A novel method for the separation of zinc and cobalt from hazardous zinc-cobalt slag via an alkaline glycine solution.SEPARATION AND PURIFICATION TECHNOLOGY,273.
MLA	Huang, Yukun,et al."A novel method for the separation of zinc and cobalt from hazardous zinc-cobalt slag via an alkaline glycine solution".SEPARATION AND PURIFICATION TECHNOLOGY 273(2021).