|
1
|
Konopkina EA, Gopin AV, Pozdeev AS, Chernysheva MG, Kalle P, Pavlova EA, Kalmykov SN, Petrov VG, Borisova NE, Guda AA, Matveev PI. Kinetic features of solvent extraction by N,O-donor ligands of f-elements: a comparative study of diamides based on 1,10-phenanthroline and 2,2'-bipyridine. Phys Chem Chem Phys 2024; 26:2548-2559. [PMID: 38170859 DOI: 10.1039/d3cp05081e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
A variant of microfluidic setup design for the study of extraction kinetics has been proposed. Mass transfer constants for Am(III) and Eu(III) and observed rate constants were obtained for N-,O-donor ligands featuring phenanthroline and bipyridyl cores. The possibility of determining rate constants for cations independently of each other makes it possible to observe the kinetic effect of separation. The extraction rate was found to be lower for the bipyridyl ligand, compared to phenanthroline. The values of the rotation barriers for the ligands were calculated using the DFT method. The values correlate with the obtained low extraction rate for the bipyridyl ligand. Also, crystallographic data showing anti-conformation for the bipyridyl ligand align with the kinetic data. Surface tension was also determined for the systems with the studied ligands. It is shown that at equal ligand concentrations, the value of surface tension agrees with the extraction rate. Furthermore, it is shown that for the bipyridyl ligand, prior contact of the organic phase with nitric acid significantly affects the surface tension.
Collapse
Affiliation(s)
- Ekaterina A Konopkina
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Alexander V Gopin
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Anton S Pozdeev
- Department of Chemistry and Biochemistry, Utah State University, 0300 Old Main Hill, Logan, UT, 84322-0300, USA
| | - Maria G Chernysheva
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Paulina Kalle
- N. S. Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russian Federation
| | - Elizaveta A Pavlova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Stepan N Kalmykov
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Vladimir G Petrov
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Nataliya E Borisova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| | - Alexander A Guda
- The Smart Materials Research Institute, Southern Federal University, Rostov-on-Don 3440906, Russian Federation
| | - Petr I Matveev
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russian Federation.
| |
Collapse
|
|
2
|
Miao Q, Sun T, Zheng Q, Zhang Y, Duan W. Effects of the Structure, Operation, and Physical Parameters on the Actual Phase Ratio and Interface Radius in the Separation Zone of an Annular Centrifugal Contactor. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Quanduo Miao
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing100084, China
| | - Taoxiang Sun
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing100084, China
| | - Qiang Zheng
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing100084, China
| | - Yanli Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing100084, China
| | - Wuhua Duan
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing100084, China
| |
Collapse
|
|
3
|
Yang H, Yang X, Dong X, Lu Z, Bai Z, Wang Y, Gao F. Recent progress in hydrodynamic characteristics research and application of annular centrifugal extractors. Front Chem Sci Eng 2022. [DOI: 10.1007/s11705-022-2156-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|