Investigation of hydrodynamic parameters and separation efficiency of uranium by Tri-n octylamine in a horizontal pulse sieve plate column
In this study, recovery of uranium from leach liquor using solvent extraction technique in a horizontal pulsed sieve plate column was experimentally investigated. Extraction of uranium from an aqueous sulfate solution with 0.25M concentration acid, by using TOA solvent, diluted in kerosene and n-dec...
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Nuclear Science and Technology Research Institute
2020-12-01
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| Series: | مجله علوم و فنون هستهای |
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| Online Access: | https://jonsat.nstri.ir/article_1167_e85a5c63f1ed2090c20ee6038b2baf61.pdf |
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| author | H. Badakhshan A. Gharib F. Panahinia M. Ghannadi-Maragheh J. Safdari M.H. Mallah |
| author_facet | H. Badakhshan A. Gharib F. Panahinia M. Ghannadi-Maragheh J. Safdari M.H. Mallah |
| author_sort | H. Badakhshan |
| collection | DOAJ |
| description | In this study, recovery of uranium from leach liquor using solvent extraction technique in a horizontal pulsed sieve plate column was experimentally investigated. Extraction of uranium from an aqueous sulfate solution with 0.25M concentration acid, by using TOA solvent, diluted in kerosene and n-decanol modifier of 5%, 90% and 5% v/v respectively was studied and the influences of operation parameters including the phase flow rates along with pulsation intensity on the dispersed phase holdup, drop size and drop size distribution, as well as extraction efficiency, were evaluated. Increasing pulsation intensity along with the dispersed phase flow rate and decreasing the continuous phase flow rate caused to increase the extraction efficiency. Results showed that the horizontal pulsed sieve plate column has high efficiency for extraction of the uranium from leach liquor. Moreover, a comparative evaluation of available correlations proposed for the prediction of mean drop size and hold up in such columns have been conducted. New correlations for estimating mean drop size and hold up in a horizontal pulsed sieve-plate column were presented, which provided AARE of 7.7% and 8.2%, respectively. |
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| id | doaj.art-a8951f7ec1e1432f8bfe7395c7888d10 |
| institution | Directory Open Access Journal |
| issn | 1735-1871 2676-5861 |
| language | fas |
| last_indexed | 2025-03-21T21:37:07Z |
| publishDate | 2020-12-01 |
| publisher | Nuclear Science and Technology Research Institute |
| record_format | Article |
| series | مجله علوم و فنون هستهای |
| spelling | doaj.art-a8951f7ec1e1432f8bfe7395c7888d102024-05-27T13:00:19ZfasNuclear Science and Technology Research Instituteمجله علوم و فنون هستهای1735-18712676-58612020-12-0141416217110.24200/nst.2021.11671167Investigation of hydrodynamic parameters and separation efficiency of uranium by Tri-n octylamine in a horizontal pulse sieve plate columnH. Badakhshan0A. Gharib1F. Panahinia2M. Ghannadi-Maragheh3J. Safdari4M.H. Mallah5Energy Engineering and Physics Department, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran - IranEnergy Engineering and Physics Department, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran - IranNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 11365-8486, Tehran – IranNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 11365-8486, Tehran – IranNuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 11365-8486, Tehran – IranEnergy Engineering and Physics Department, Amirkabir University of Technology, P.O. Box: 15875-4413, Tehran - IranIn this study, recovery of uranium from leach liquor using solvent extraction technique in a horizontal pulsed sieve plate column was experimentally investigated. Extraction of uranium from an aqueous sulfate solution with 0.25M concentration acid, by using TOA solvent, diluted in kerosene and n-decanol modifier of 5%, 90% and 5% v/v respectively was studied and the influences of operation parameters including the phase flow rates along with pulsation intensity on the dispersed phase holdup, drop size and drop size distribution, as well as extraction efficiency, were evaluated. Increasing pulsation intensity along with the dispersed phase flow rate and decreasing the continuous phase flow rate caused to increase the extraction efficiency. Results showed that the horizontal pulsed sieve plate column has high efficiency for extraction of the uranium from leach liquor. Moreover, a comparative evaluation of available correlations proposed for the prediction of mean drop size and hold up in such columns have been conducted. New correlations for estimating mean drop size and hold up in a horizontal pulsed sieve-plate column were presented, which provided AARE of 7.7% and 8.2%, respectively.https://jonsat.nstri.ir/article_1167_e85a5c63f1ed2090c20ee6038b2baf61.pdfuranium extractiondispersed phase holdupsauter mean drop diameterhorizontal pulsed sieve-plate column |
| spellingShingle | H. Badakhshan A. Gharib F. Panahinia M. Ghannadi-Maragheh J. Safdari M.H. Mallah Investigation of hydrodynamic parameters and separation efficiency of uranium by Tri-n octylamine in a horizontal pulse sieve plate column مجله علوم و فنون هستهای uranium extraction dispersed phase holdup sauter mean drop diameter horizontal pulsed sieve-plate column |
| title | Investigation of hydrodynamic parameters and separation efficiency of
uranium by Tri-n octylamine in a horizontal pulse sieve plate column |
| title_full | Investigation of hydrodynamic parameters and separation efficiency of
uranium by Tri-n octylamine in a horizontal pulse sieve plate column |
| title_fullStr | Investigation of hydrodynamic parameters and separation efficiency of
uranium by Tri-n octylamine in a horizontal pulse sieve plate column |
| title_full_unstemmed | Investigation of hydrodynamic parameters and separation efficiency of
uranium by Tri-n octylamine in a horizontal pulse sieve plate column |
| title_short | Investigation of hydrodynamic parameters and separation efficiency of
uranium by Tri-n octylamine in a horizontal pulse sieve plate column |
| title_sort | investigation of hydrodynamic parameters and separation efficiency of uranium by tri n octylamine in a horizontal pulse sieve plate column |
| topic | uranium extraction dispersed phase holdup sauter mean drop diameter horizontal pulsed sieve-plate column |
| url | https://jonsat.nstri.ir/article_1167_e85a5c63f1ed2090c20ee6038b2baf61.pdf |
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