Two and three-phase separation of phenol and o-nitrophenol: Correlation between phase behavior and partitioning behavior
文献类型：期刊论文
| 作者 | Yu, Pinhua1,2,3; Huang, Kun1; Liu, Huizhou1 |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2012-06-05 |
| 卷号 | 403期号:403页码:15-24 |
| 关键词 | Three-liquid-phase extraction Phase behaviors Mass transfer Aggregation |
| ISSN号 | 0927-7757 |
| 其他题名 | Colloid Surf. A-Physicochem. Eng. Asp. |
| 中文摘要 | Partitioning of two model organic compounds, phenol and o-nitrophenol (o-NP), in aqueous two-phase system (ATPS) of PEG2000-(NH4)(2)SO4 and three-liquid-phase system (TLPS) of butyl acetate (BA)-PEG2000-(NH4)(2)SO4 were systematically investigated. Experimental results indicated that the enrichment of phenol and o-NP in the salting-out PEG2000 top phase of ATPS as well as the selectively transfer of the two compounds respectively into BA top phase and PEG2000 middle phase of TLPS were closely related to the phase-forming behavior of ATPS and TLPS. The aggregation behavior of PEG macromolecules is crucial for the phase evolution and distribution of phenol and o-NP. Variation in distribution ratios resulted from the change in microenvironment of salting-out PEG2000 phase induced by increasing concentrations of PEG, (NH4)(2)SO4 and pH. Addition of BA promoted the unevenly mass transfer of phenol from PEG2000 aqueous phase to organic BA phase, leading to the separation between phenol and o-NP. A suggested mass transfer model describes the entrapment of phenolic compounds from salt aqueous phase to PEG2000 phase under the modulation of salt concentrations and system pH. A possible microscopic mechanism was proposed to describe the selective mass transfer of phenol from PEG2000 phase to BA organic top phase in the resultant TLPS of BA-PEG2000-(NH4)(2)SO4. (C) 2012 Elsevier B.V. All rights reserved. |
| 英文摘要 | Partitioning of two model organic compounds, phenol and o-nitrophenol (o-NP), in aqueous two-phase system (ATPS) of PEG2000-(NH4)(2)SO4 and three-liquid-phase system (TLPS) of butyl acetate (BA)-PEG2000-(NH4)(2)SO4 were systematically investigated. Experimental results indicated that the enrichment of phenol and o-NP in the salting-out PEG2000 top phase of ATPS as well as the selectively transfer of the two compounds respectively into BA top phase and PEG2000 middle phase of TLPS were closely related to the phase-forming behavior of ATPS and TLPS. The aggregation behavior of PEG macromolecules is crucial for the phase evolution and distribution of phenol and o-NP. Variation in distribution ratios resulted from the change in microenvironment of salting-out PEG2000 phase induced by increasing concentrations of PEG, (NH4)(2)SO4 and pH. Addition of BA promoted the unevenly mass transfer of phenol from PEG2000 aqueous phase to organic BA phase, leading to the separation between phenol and o-NP. A suggested mass transfer model describes the entrapment of phenolic compounds from salt aqueous phase to PEG2000 phase under the modulation of salt concentrations and system pH. A possible microscopic mechanism was proposed to describe the selective mass transfer of phenol from PEG2000 phase to BA organic top phase in the resultant TLPS of BA-PEG2000-(NH4)(2)SO4. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | POLY(ETHYLENE OXIDE) SOLUTIONS ; AQUEOUS 2-PHASE SYSTEMS ; CLOUD-POINT EXTRACTION ; WATER-SOLUBLE POLYMER ; 3-LIQUID-PHASE EXTRACTION ; POLYETHYLENE-GLYCOL ; BIPHASIC SYSTEMS ; PEO SOLUTIONS ; AGGREGATION ; SALT |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000304840700003 |
| 公开日期 | 2013-11-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6514]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Pinhua,Huang, Kun,Liu, Huizhou. Two and three-phase separation of phenol and o-nitrophenol: Correlation between phase behavior and partitioning behavior[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2012,403(403):15-24. |
| APA | Yu, Pinhua,Huang, Kun,&Liu, Huizhou.(2012).Two and three-phase separation of phenol and o-nitrophenol: Correlation between phase behavior and partitioning behavior.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,403(403),15-24. |
| MLA | Yu, Pinhua,et al."Two and three-phase separation of phenol and o-nitrophenol: Correlation between phase behavior and partitioning behavior".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 403.403(2012):15-24. |
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。