Polymerization and Transformation of Tungsten(VI) Species in Acidic Aqueous Solution by Electrospray Ionization Time-of-Flight Mass Spectrometry

doi:10.1007/s10953-020-01001-2

	Polymerization and Transformation of Tungsten(VI) Species in Acidic Aqueous Solution by Electrospray Ionization Time-of-Flight Mass Spectrometry
	Lin, Shujie 1,2; Ning, Pengge 1; Wen, Jiawei 1; Zhang, Yi 1
刊名	JOURNAL OF SOLUTION CHEMISTRY
	2020-10-01
卷号	49 期号:9-10 页码:1107-1124
关键词	Tungsten speciation ESI-TOF-MS Polymerization Transformation
ISSN号	0095-9782
DOI	10.1007/s10953-020-01001-2
英文摘要	Deep understanding of the polymerization and transformation of tungstate species in aqueous solution is of great significance for hydrometallurgical and chemical separation processes, such as solvent extraction, membrane separation and crystallization. In order to study the polymerization and transformation of tungstate species, the semi-quantitative characterization method of electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS) was developed. In this paper, the tungsten speciation in simulative leaching solution was investigated in detail between pH 2.5 and 7 under various conditions (e.g. acid species, initial concentration, pH), and the results indicated that HCl was more conducive than HNO3 for the polymerization of tungsten at the same pH, and HAc accelerated the polymerization of tungsten species, especially in acid solution at lower pH; the morphological changes of each tungsten species tended to be consistent with the increase of tungsten concentration; pH strongly influenced the distribution of tungsten species. Then, the polymerization and transformation laws of tungstate species are summarized. W-1 (monomers) are dominant species in weak acid and neutral solution, and aggregate into oligomeric species (e.g. W-2, W-4, W-6). Transformations also exist among W-2, W-4 and W-6. The polymerization process from W-4 and W-6 species to higher poly-tungstate (W10-12) was observed with the consumption of H+. This work aims to understand the polymerization and transformation of tungsten speciation using ESI-TOF-MS, which should provide useful information for the understanding and optimizing of industrial production and environmental processes, building a bridge between micro tungsten speciation and macro industrial applications.
资助项目	National Science Fund for Distinguished Young Scholars of China[51425405] ; Youth Innovation Promotion Association, CAS[2016042]
WOS关键词	SPECIATION ; VANADIUM ; MOLYBDENUM ; OXYANIONS ; CHEMISTRY ; TUNGSTATE ; ANIONS ; MO
WOS研究方向	Chemistry
语种	英语
出版者	SPRINGER/PLENUM PUBLISHERS
WOS记录号	WOS:000581950500001
资助机构	National Science Fund for Distinguished Young Scholars of China ; Youth Innovation Promotion Association, CAS
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42426]
专题	中国科学院过程工程研究所
通讯作者	Ning, Pengge
作者单位	1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Lin, Shujie,Ning, Pengge,Wen, Jiawei,et al. Polymerization and Transformation of Tungsten(VI) Species in Acidic Aqueous Solution by Electrospray Ionization Time-of-Flight Mass Spectrometry[J]. JOURNAL OF SOLUTION CHEMISTRY,2020,49(9-10):1107-1124.
APA	Lin, Shujie,Ning, Pengge,Wen, Jiawei,&Zhang, Yi.(2020).Polymerization and Transformation of Tungsten(VI) Species in Acidic Aqueous Solution by Electrospray Ionization Time-of-Flight Mass Spectrometry.JOURNAL OF SOLUTION CHEMISTRY,49(9-10),1107-1124.
MLA	Lin, Shujie,et al."Polymerization and Transformation of Tungsten(VI) Species in Acidic Aqueous Solution by Electrospray Ionization Time-of-Flight Mass Spectrometry".JOURNAL OF SOLUTION CHEMISTRY 49.9-10(2020):1107-1124.