Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6
Application of 1-butyl-3-metyhlimidazaolium hexafluorophosphate ([C4mim][PF6]), in the extraction of rubidium and cesium from brine solutions using 1,4,7,10,13,16-hexaoxacyclooctadecane (18C6) as extractant was investigated. Parameters that affect the extraction including pH of aqueous phase, equili...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2018-06-01
|
| Series: | Polish Journal of Chemical Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/pjct-2018-0021 |
| _version_ | 1818718747087601664 |
|---|---|
| author | Huang Dongfang Zheng Hong Liu Zeyu Bao Amin Li Bo |
| author_facet | Huang Dongfang Zheng Hong Liu Zeyu Bao Amin Li Bo |
| author_sort | Huang Dongfang |
| collection | DOAJ |
| description | Application of 1-butyl-3-metyhlimidazaolium hexafluorophosphate ([C4mim][PF6]), in the extraction of rubidium and cesium from brine solutions using 1,4,7,10,13,16-hexaoxacyclooctadecane (18C6) as extractant was investigated. Parameters that affect the extraction including pH of aqueous phase, equilibration time, dosage of the ionic liquid, phase ratio, concentration of 18C6 were studied. Under the optimal conditions, the single extraction efficiency of rubidium ions and cesium ions were up 84.11% and 94.99%, respectively. The stripping of alkali metal ions from the loaded organic phase with different stripping agents and concentrations were also investigated. The initial value of the K/Cs and K/Rb ratios were 93.0 and 104.3, respectively, which have dropped 91.21% and 88.01%, respectively, after the extraction and stripping experiments. It was taken a big step in the separation and enrichment of cesium (rubidium) ion and potassium ion. The extraction mechanism was revealed most likely to be a cation exchange mode in this system. |
| first_indexed | 2024-12-17T19:55:57Z |
| format | Article |
| id | doaj.art-0b2eb7291f07439e8ca9cbb6544816bb |
| institution | Directory Open Access Journal |
| issn | 1899-4741 |
| language | English |
| last_indexed | 2024-12-17T19:55:57Z |
| publishDate | 2018-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Polish Journal of Chemical Technology |
| spelling | doaj.art-0b2eb7291f07439e8ca9cbb6544816bb2022-12-21T21:34:35ZengSciendoPolish Journal of Chemical Technology1899-47412018-06-01202404610.2478/pjct-2018-0021pjct-2018-0021Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6Huang Dongfang0Zheng Hong1Liu Zeyu2Bao Amin3Li Bo4Chinese Academy of Sciences, Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, 810008Xining, ChinaDepartment of Chemistry, Chongqing Normal University, Chongqing, 400047, ChinaChinese Academy of Sciences, Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, 810008Xining, ChinaChinese Academy of Sciences, Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, 810008Xining, ChinaChinese Academy of Sciences, Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, 810008Xining, ChinaApplication of 1-butyl-3-metyhlimidazaolium hexafluorophosphate ([C4mim][PF6]), in the extraction of rubidium and cesium from brine solutions using 1,4,7,10,13,16-hexaoxacyclooctadecane (18C6) as extractant was investigated. Parameters that affect the extraction including pH of aqueous phase, equilibration time, dosage of the ionic liquid, phase ratio, concentration of 18C6 were studied. Under the optimal conditions, the single extraction efficiency of rubidium ions and cesium ions were up 84.11% and 94.99%, respectively. The stripping of alkali metal ions from the loaded organic phase with different stripping agents and concentrations were also investigated. The initial value of the K/Cs and K/Rb ratios were 93.0 and 104.3, respectively, which have dropped 91.21% and 88.01%, respectively, after the extraction and stripping experiments. It was taken a big step in the separation and enrichment of cesium (rubidium) ion and potassium ion. The extraction mechanism was revealed most likely to be a cation exchange mode in this system.https://doi.org/10.2478/pjct-2018-0021rubidiumcesiumionic liquid18-crown-6solvent extraction |
| spellingShingle | Huang Dongfang Zheng Hong Liu Zeyu Bao Amin Li Bo Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6 Polish Journal of Chemical Technology rubidium cesium ionic liquid 18-crown-6 solvent extraction |
| title | Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6 |
| title_full | Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6 |
| title_fullStr | Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6 |
| title_full_unstemmed | Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6 |
| title_short | Extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18-crown-6 |
| title_sort | extraction of rubidium and cesium from brine solutions using a room temperature ionic liquid system containing 18 crown 6 |
| topic | rubidium cesium ionic liquid 18-crown-6 solvent extraction |
| url | https://doi.org/10.2478/pjct-2018-0021 |
| work_keys_str_mv | AT huangdongfang extractionofrubidiumandcesiumfrombrinesolutionsusingaroomtemperatureionicliquidsystemcontaining18crown6 AT zhenghong extractionofrubidiumandcesiumfrombrinesolutionsusingaroomtemperatureionicliquidsystemcontaining18crown6 AT liuzeyu extractionofrubidiumandcesiumfrombrinesolutionsusingaroomtemperatureionicliquidsystemcontaining18crown6 AT baoamin extractionofrubidiumandcesiumfrombrinesolutionsusingaroomtemperatureionicliquidsystemcontaining18crown6 AT libo extractionofrubidiumandcesiumfrombrinesolutionsusingaroomtemperatureionicliquidsystemcontaining18crown6 |