Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors
Apstrakt
Dispersion-free extraction of thallium(III) from NaCl/H2SO4 solution into butyl acetate has been studied using hydrophobic polypropylene and polyvinylidene fluoride hollow fibers of different effective lengths. The aqueous feed solution flowed inside the fibers and the organic phase was fed at the shell side. The influence of phase flow rates on the mass transfer coefficients was investigated, and correlations between the Sherwood and Graetz numbers were developed. The overall resistance to mass transfer is controlled by the feed-side mass transfer coefficient due to the high partition coefficient of HTlCl4 between the phases. The obtained results are discussed in terms of extraction efficiency, thallium flux through the interfacial area, and the length of the transfer unit as a function of the feed flow rate and the effective fiber length. The extraction efficiency was independent of the organic phase flow rate.
Ključne reči:
thallium / solvent extraction / hollow fiber / production of radiopharmaceuticals / (TlCl)-Tl-201Izvor:
Separation Science and Technology, 2000, 35, 10, 1587-1601
DOI: 10.1081/SS-100100242
ISSN: 0149-6395
WoS: 000088658300007
Scopus: 2-s2.0-0034233503
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Trtić, Tatjana M. AU - Vladisavljević, Goran T. AU - Čomor, Jožef J. PY - 2000 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2369 AB - Dispersion-free extraction of thallium(III) from NaCl/H2SO4 solution into butyl acetate has been studied using hydrophobic polypropylene and polyvinylidene fluoride hollow fibers of different effective lengths. The aqueous feed solution flowed inside the fibers and the organic phase was fed at the shell side. The influence of phase flow rates on the mass transfer coefficients was investigated, and correlations between the Sherwood and Graetz numbers were developed. The overall resistance to mass transfer is controlled by the feed-side mass transfer coefficient due to the high partition coefficient of HTlCl4 between the phases. The obtained results are discussed in terms of extraction efficiency, thallium flux through the interfacial area, and the length of the transfer unit as a function of the feed flow rate and the effective fiber length. The extraction efficiency was independent of the organic phase flow rate. T2 - Separation Science and Technology T1 - Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors VL - 35 IS - 10 SP - 1587 EP - 1601 DO - 10.1081/SS-100100242 ER -
@article{ author = "Trtić, Tatjana M. and Vladisavljević, Goran T. and Čomor, Jožef J.", year = "2000", abstract = "Dispersion-free extraction of thallium(III) from NaCl/H2SO4 solution into butyl acetate has been studied using hydrophobic polypropylene and polyvinylidene fluoride hollow fibers of different effective lengths. The aqueous feed solution flowed inside the fibers and the organic phase was fed at the shell side. The influence of phase flow rates on the mass transfer coefficients was investigated, and correlations between the Sherwood and Graetz numbers were developed. The overall resistance to mass transfer is controlled by the feed-side mass transfer coefficient due to the high partition coefficient of HTlCl4 between the phases. The obtained results are discussed in terms of extraction efficiency, thallium flux through the interfacial area, and the length of the transfer unit as a function of the feed flow rate and the effective fiber length. The extraction efficiency was independent of the organic phase flow rate.", journal = "Separation Science and Technology", title = "Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors", volume = "35", number = "10", pages = "1587-1601", doi = "10.1081/SS-100100242" }
Trtić, T. M., Vladisavljević, G. T.,& Čomor, J. J.. (2000). Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors. in Separation Science and Technology, 35(10), 1587-1601. https://doi.org/10.1081/SS-100100242
Trtić TM, Vladisavljević GT, Čomor JJ. Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors. in Separation Science and Technology. 2000;35(10):1587-1601. doi:10.1081/SS-100100242 .
Trtić, Tatjana M., Vladisavljević, Goran T., Čomor, Jožef J., "Dispersion-free solvent extraction of thallium(III) in hollow fiber contactors" in Separation Science and Technology, 35, no. 10 (2000):1587-1601, https://doi.org/10.1081/SS-100100242 . .