Kinetics of Extraction of Tributyl phosphate (TBP) from Aqueous Feed in Single Stage Air-sparged Mixing Unit
-
Vikesh G. Lade
Abstract
The mass transfer studies involving kinetics of extraction of Tributyl phosphate (TBP) saturated in 0.3 M nitric acid using different organic extractants viz. normal paraffinic hydrocarbon (NPH), kerosene, dodecane etc. have been performed in a novel air-sparged single stage mixing unit. Based on the mechanism, a simple kinetic model (analogous to first order) is proposed and experimental data was analyzed. The optimization studies including the effect of diluent, % TBP in NPH, Organic to Aqueous phase (O/A), air flowrate and the nitric acid concentration in aqueous phase have been performed. The experimental and modeled kinetic results suggest that the optimized conditions for the extraction of TBP (174 ppm to 65.5 ppm) from aqueous 0.3 M HNO3 feed are found to be, 3 % TBP in NPH as extracting solvent, O/A is 1/1 and volumetric air flowrate is 15 LPM. However, if pure NPH used as an extractant with these operating conditions 100 % removal can be obtained.
Abbreviations
- CTBP
concentration of TBP in aqueous phase (mole/L)
- CTBP, t
concentration of TBP in aqueous phase at any time t (mole/L)
- CTBP, e
initial concentration of TBP in aqueous phase (mole/L)
- CTBP, e
equilibrium concentration of TBP in aqueous phase (mole/L)
- k
rate constant (sec−1)
- t
time (sec)
References
1. Bajoria, S.L., Rathod, V.K., Pandey, N.K., Mudali, U.K., Natarajan, R., 2011. Equilibrium study for the system tri-n-butyl phosphate, normal paraffin hydrocarbon, and nitric acid. J. Chem. Eng. Data 56, 2856–2860. doi: 10.1021/je101346w.Suche in Google Scholar
2. Bajoria, S.L., Ph.D. Thesis, 2013. Studies in Liquid-liquid systems. Institute of Chemical Technology, Mumbai, INDIA.Suche in Google Scholar
3. Baumgärtner, F., Finsterwalder, L., 1968. Kinetics of Extraction of Metals with Organophosphorus Compounds. in Int. Conf. on Coordination Chem. Jerusalem.Suche in Google Scholar
4. Dicholkar, D.D., Patil, L.K., Gaikar, V.G., Kumar, S., Kamachi Mudali, U., Natarajan, R., 2011. Direct determination of tri-n-butyl phosphate by HPLC and GC methods. J. Radioanal. Nucl. Chem. 291, 739–743. doi: 10.1007/s10967-011-1445-8.Suche in Google Scholar
5. Doungdeethaveeratana, D., Sohn, H.Y., 1998. The kinetics of extraction in a novel solvent extraction process with bottom gas injection without moving parts. Hydrometallurgy. 49, 229–254. doi: 10.1016/S0304-386X(98)00028-0.Suche in Google Scholar
6. Hoh, Y.-C., Wang, W.-K., 1980. Rate studies on nitric acid-tributyl stripping phosphate extraction and stripping. Ind. Eng. Chem. Proc. Des. Dev. 19, 64–67. doi: 10.1021/i260073a011.Suche in Google Scholar
7. Huang, T.-C., Huang, C.-T., 1988. Kinetics of the extraction of uranium(VI) from nitric acid solutions with bis(2-ethylhexy1)phosphoric acid. Ind. Eng. Chem. Res. 27, 1675–1680. doi: 10.1021/ie00081a019.Suche in Google Scholar
8. Kumar, S., Datta, D., Babu, B.V., 2011. Estimation of equilibrium parameters using differential evolution in reactive extraction of propionic acid by tri-n-butyl phosphate. Chem. Eng. Process: Process Intensif. 50, 614–622. doi: 10.1016/j.cep.2011.03.004.Suche in Google Scholar
9. Lade, V.G., Wankhede, P.C., Rathod, V.K., 2015. Removal of tributyl phosphate from aqueous stream in a pilot scale combined air−lift mixer−settler unit: Process intensification studies. http://www.journals.elsevier.com/chemical-engineering-and-processing-process-intensification/ Chem. Eng. Process: Process Intensif. 95, 72–79. doi: 10.1016/j.cep.2015.05.004.Suche in Google Scholar
10. Lawson, P.N.E., Hughes, M.A., 1989. A kinetic model for the extraction of nitric acid by tri-n-butylphosphate. Chem. Eng. J. 40, 111–119. doi: 10.1016/0300-9467(89)80052-8.Suche in Google Scholar
11. Manohar, S., Narayan Kutty, K., Shah, B.V., Wattal, P.K., Bajoria, S.L., Kolhe, N.S., Rathod, V.K., 2012. Removal of dissolved tri-n-butyl phosphate from aqueous streams of reprocessing origin: Engineering scale studies. Desalin. Water Treat. 38, 146–150. doi: 10.1080/19443994.2012.664316.Suche in Google Scholar
12. Naito, K., Suzuki, T., 1962. The mechanism of the extraction of several uranyl salts by tri-n-butyl phosphate. J. Phys. Chem. 66, 989–995. doi: 10.1021/j100812a005.Suche in Google Scholar
13. Pandey, N.K., Velavendan, P., Geetha, R., Ahmed, M.K., Koganti, S.B., 1998. Adsorption kinetics and breakthrough behaviour of tri-n-butyl phosphate on amberlite XAD-4 resin. J. Nucl. Sci. Technol. 35, 370–378. doi: 10.1080/18811248.1998.9733874.Suche in Google Scholar
14. Salem, A.B.S., 1991. Extraction in a single-stage mixer-settler. Ind. Eng. Chem. Res. 30, 1582–1588. doi: 10.1021/ie00055a025.Suche in Google Scholar
15. Schulz, W.W., Navratil, J.D., 1984. Science and Technology of Tributyl Phosphate, CRC press, Florida.Suche in Google Scholar
16. Sovilj, M., Lukešová, S., Rod, V., 1985. Extraction of nitric acid by TBP solutions in kerosene. Collection Czechoslovak Chem. Commun. 50, 738–744. doi: 10.1135/cccc19850738.Suche in Google Scholar
17. Tochiyama, O., Nakamura, Y., Hirota, M., Inoue, Y., 1995. Kinetics of nitrous acid-catalyzed oxidation of neptunium in nitric acid-TBP extraction System. J. Nucl. Sci. Technol. 32, 118–124. doi: 10.1080/18811248.1995.9731681.Suche in Google Scholar
18. Tuck, D.G., 1970. Rate of equilibration in the two-phase system water+tri-n-butyl phosphate. Trans. Faraday Soc. 66, 2526–2532. doi: 10.1039/TF9706602526.Suche in Google Scholar
19. Xianhong, Z., Zhou, L., 1996. Extraction kinetics of nitric acid by TBP. J. Chem. Eng. Chinese Univ. 1996–02.Suche in Google Scholar
20. Yadav, K.K., Vijayalakshmi, R., Singh, H., 2009. Uranium from phosphoric acid: Kinetic studies of the solvent extraction processes for uranium extraction. Desalin. Water Treat. 12, 45–51. doi: 10.5004/dwt.2009.949.Suche in Google Scholar
21. Yanase, N., Naganawa, H., Nagano, T., Noro, J., 2011. New apparatus for liquid-liquid extraction, “emulsion flow” extractor. Anal. Sci. 27, 171–176. doi: 10.2116/analsci.27.171.Suche in Google Scholar PubMed
©2017 by De Gruyter
Artikel in diesem Heft
- Bubble Trajectory in a Bubble Column Reactor using Combined Image Processing and Artificial Neural Network
- Non-linear Radiation Effects in Mixed Convection Stagnation Point Flow along a Vertically Stretching Surface
- Mixing Behaviors of Jets in Cross-Flow for Heat Recovery of Partial Oxidation Process
- Selective Hydrogenation of 4’,4”(5”)-Di-Tert-Butyldibenzo-18-Crown-6 Ether over Rh/γ-Al2O3 Nanocatalyst
- Titania-Loaded Coal Char as Catalyst in Oxidation of Styrene with Aqueous Hydrogen Peroxide
- A Study of the Soft-Sphere Model in Eulerian-Lagrangian Simulation of Gas-Liquid Flow
- Conceptual Approach in Multi-Objective Optimization of Packed Bed Membrane Reactor for Ethylene Epoxidation Using Real-coded Non-Dominating Sorting Genetic Algorithm NSGA-II
- Kinetics of Extraction of Tributyl phosphate (TBP) from Aqueous Feed in Single Stage Air-sparged Mixing Unit
- Viscous Dissipation Effects in Water Driven Carbon Nanotubes along a Stream Wise and Cross Flow Direction
- Evaluation of Mixing and Mixing Rate in a Multiple Spouted Bed by Image Processing Technique
- A Parametric Study of Biodiesel Production Under Ultrasounds
- Numerical Study of MHD Viscoelastic Fluid Flow with Binary Chemical Reaction and Arrhenius Activation Energy
- CFD Analysis and Design Optimization in a Curved Blade Impeller
- Bio-Oil Heavy Fraction as a Feedstock for Hydrogen Generation via Chemical Looping Process: Reactor Design and Hydrodynamic Analysis
- Upgrading of Heavy Oil in Supercritical Water using an Iron based Multicomponent Catalyst
Artikel in diesem Heft
- Bubble Trajectory in a Bubble Column Reactor using Combined Image Processing and Artificial Neural Network
- Non-linear Radiation Effects in Mixed Convection Stagnation Point Flow along a Vertically Stretching Surface
- Mixing Behaviors of Jets in Cross-Flow for Heat Recovery of Partial Oxidation Process
- Selective Hydrogenation of 4’,4”(5”)-Di-Tert-Butyldibenzo-18-Crown-6 Ether over Rh/γ-Al2O3 Nanocatalyst
- Titania-Loaded Coal Char as Catalyst in Oxidation of Styrene with Aqueous Hydrogen Peroxide
- A Study of the Soft-Sphere Model in Eulerian-Lagrangian Simulation of Gas-Liquid Flow
- Conceptual Approach in Multi-Objective Optimization of Packed Bed Membrane Reactor for Ethylene Epoxidation Using Real-coded Non-Dominating Sorting Genetic Algorithm NSGA-II
- Kinetics of Extraction of Tributyl phosphate (TBP) from Aqueous Feed in Single Stage Air-sparged Mixing Unit
- Viscous Dissipation Effects in Water Driven Carbon Nanotubes along a Stream Wise and Cross Flow Direction
- Evaluation of Mixing and Mixing Rate in a Multiple Spouted Bed by Image Processing Technique
- A Parametric Study of Biodiesel Production Under Ultrasounds
- Numerical Study of MHD Viscoelastic Fluid Flow with Binary Chemical Reaction and Arrhenius Activation Energy
- CFD Analysis and Design Optimization in a Curved Blade Impeller
- Bio-Oil Heavy Fraction as a Feedstock for Hydrogen Generation via Chemical Looping Process: Reactor Design and Hydrodynamic Analysis
- Upgrading of Heavy Oil in Supercritical Water using an Iron based Multicomponent Catalyst
