中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Removal of Trace Aluminum Impurity for High-Purity GdCl3 Preparation using an Amine-Group-Functionalized Ionic Liquid

文献类型：期刊论文

作者Li, Fujian2,3,4; Yan, Junjun1,4; Zhang, Xiangping3,4; Wang, Na1,4; Dong, Haifeng3,4; Bai, Lu3,4; Gao, Hongshuai3,4
刊名INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
出版日期2021-08-04
卷号60期号:30页码:11241-11250
ISSN号0888-5885
DOI10.1021/acs.iecr.1c00870
英文摘要Aluminum, as an associated metal with rare-earth resources, is a common impurity in rare-earth separation products. In the traditional P507-kerosene-HCl system, tremendous aluminum impurity (8875 mg/L herein) is often enriched in GdCl3 solutions because of the similar extraction sequence during rare-earth separation. In this work, a new amine-group-functionalized ionic liquid (IL) was developed to remove trace aluminum impurity from high-purity GdCl3 solutions, overcoming the drawbacks of strong hydrophilicity and complicated compositions of the organic phase, as well as other impurities introduced and tremendous saline wastewater produced inevitably. Methyltrioctylammonium hydroxide (N1888OH), instead of the water soluble ammonium hydroxide (NH4OH), was used to dissociate the dimer of sec-octylphenoxy acetic acid (CA12) and synthesize cation- and anion-bifunctionalized IL [N1888][CA12]. The separation factor of Al/Gd was as high as 36. The influences of pH, salting-out agent, extraction time, temperature, and stripping efficiency on the extraction efficiency were evaluated. The result showed that high-purity GdCl3 solution was obtained with low aluminum impurity of 10 ppm after five-stage countercurrent extraction. Due to the weak interaction between the metal and IL, very dilute HCl solution (0.07 mol/L) and NaOH solution (0.07 mol/L) were in favor of metal stripping and IL regeneration.
WOS关键词RARE-EARTHS ; SOLVENT-EXTRACTION ; SEPARATION ; EFFICIENT ; RECOVERY ; ACID ; STRATEGY
资助项目National Natural Science Foundation of China[22008244] ; National Natural Science Foundation of China[22078323] ; Key Research Program of Chinese Academy of Sciences[ZDRWCN-2021-3-1-12] ; Special research assistant of CAS ; Innovation Academy for Green Manufacture[IAGM2020DB03]
WOS研究方向Engineering
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000683727000031
资助机构National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Special research assistant of CAS ; Innovation Academy for Green Manufacture
源URL[http://ir.ipe.ac.cn/handle/122111/49898]  
专题中国科学院过程工程研究所
通讯作者Zhang, Xiangping
作者单位1.Zhengzhou Univ, Coll Chem & Engn, Zhengzhou 450001, Peoples R China
2.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn, Inst Proc Engn,State Key Lab Multiphase Complex S, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Li, Fujian,Yan, Junjun,Zhang, Xiangping,et al. Removal of Trace Aluminum Impurity for High-Purity GdCl3 Preparation using an Amine-Group-Functionalized Ionic Liquid[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2021,60(30):11241-11250.
APA Li, Fujian.,Yan, Junjun.,Zhang, Xiangping.,Wang, Na.,Dong, Haifeng.,...&Gao, Hongshuai.(2021).Removal of Trace Aluminum Impurity for High-Purity GdCl3 Preparation using an Amine-Group-Functionalized Ionic Liquid.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,60(30),11241-11250.
MLA Li, Fujian,et al."Removal of Trace Aluminum Impurity for High-Purity GdCl3 Preparation using an Amine-Group-Functionalized Ionic Liquid".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 60.30(2021):11241-11250.

入库方式： OAI收割

来源：过程工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。