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. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Influence factor of Pr(III) recovery kinetics from rare-earth simulant wastewater by PAN microtubule hyperfiltration reactor

文献类型：期刊论文

作者Pei, Liang1,2,3; Wang, Liming4
刊名INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
出版日期2022-08-22
页码11
关键词enrichment section organic phosphate PAN microtubule hyperfiltration reactor praseodymium recovery percentage simulant wastewater section
ISSN号2194-5748
DOI10.1515/ijcre-2022-0137
通讯作者Pei, Liang(peiliang@igsnrr.ac.cn)
英文摘要PAN microtubule hyperfiltration reactor (PMHR) with organic phosphate system containing simulant wastewater section with buffer solution acetic acid and enrichment section with nitric acid solution and organic phosphate C16H35O4P (Di (6-methylheptyl) phosphate) dissolved in benzin, has been studied for the praseodymium (III)[expressed as Pr(III) or Pr3+] recovery in the rare-earth simulant wastewater. Many factors of Pr(III) recovery using PMHR need to explore, including hydrogen ion concentration (or pH), cinit of Pr(III) and different ionic strength of rare-earth simulant mine wastewater, volume ratio of C16H35O4P with benzin and nitric acid solution (O/W), nitric acid concentration, C16H35O4P concentration, different acid solution of enrichment section on Pr(III) recovery with PMHR were investigated. The experimental results show that the best recovery conditions of Pr(III) were obtained as that nitric acid concentration was 4.00 mol/L, C16H35O4P concentration was 0.200 mol/L, and O/W was 0.6 in the enrichment section, and pH value was 4.90 in the wastewater section. Ionic strength of rare-earth simulant mine wastewater had no obvious effect on Pr(III) recovery. When cinit of Pr(III) concentration was 1.67 x 10(-4) mol/L, the recovery percentage of Pr(III) was up to 94.7% in 160 min. The kinetic equations were developed, and diffusion coefficient in the microtubule reactor and thickness of diffusion layer between the wastewater section and the microtubule pipe wall were obtained by linear slope method. They were 4.16 x 10(-6) m(2)/s and 4.65 mu m, respectively. PMHR, owing to a large number of C16H35O4P was used in the enrichment section, can renewal the losing carrier of microtubule reactor. As a result, the recovery percentage of Pr(III) was increased, the stability of PMHR system was enhanced, and the life span of the PMHR system was extended.
WOS关键词SUPPORTED-LIQUID-MEMBRANE ; NANOFILTRATION MEMBRANE ; SOLVENT-EXTRACTION ; HIGH REJECTION ; IONS
资助项目Independent Research Projects of Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences[E2500201] ; National Youth Science Foundation[51009126]
WOS研究方向Engineering
语种英语
WOS记录号WOS:000842658500001
出版者WALTER DE GRUYTER GMBH
资助机构Independent Research Projects of Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences ; National Youth Science Foundation
源URL[http://ir.igsnrr.ac.cn/handle/311030/166661]  
专题中国科学院地理科学与资源研究所
通讯作者Pei, Liang
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi Of Xinjiang 830011, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Xian Polytech Univ, Sch Environm & Chem Engn, Xian 710048, Peoples R China
推荐引用方式
GB/T 7714		 Pei, Liang,Wang, Liming. Influence factor of Pr(III) recovery kinetics from rare-earth simulant wastewater by PAN microtubule hyperfiltration reactor[J]. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING,2022:11.
APA Pei, Liang,&Wang, Liming.(2022).Influence factor of Pr(III) recovery kinetics from rare-earth simulant wastewater by PAN microtubule hyperfiltration reactor.INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING,11.
MLA Pei, Liang,et al."Influence factor of Pr(III) recovery kinetics from rare-earth simulant wastewater by PAN microtubule hyperfiltration reactor".INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING (2022):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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。