Koncsag, Claudia I. and Barbulescu, Alina (2011) Liquid-liquid extraction with and without a chemical reaction. In: Mass transfer in multiphase systems and its applications. InTech, [Rijeka, Croatia], pp. 207-232. ISBN 978-953-307-215-9

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Abstract

The extraction of mercaptans with alkaline solution is accompanied by a second- order instantaneous reaction. As explained in Section 2.2, in this case, the mass transfer coefficients can be calculated as for the physical extraction, since the mass transfer is much slower than the reaction rate.The liquid-liquid extraction is a mass transfer process between two phases. One liquid phase is the feed consisting of a solute and a carrier. The other phase is the solvent. The extraction is understood to be a transfer of the solute from the feed to the solvent. During and at the end of the extraction process, the feed deprived of solute becomes a raffinate and the solvent turns into extract. Extraction is a separation process aiming to purify the feed or to recover one or more compounds from it.

Item Type:	Book Item
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH):	Thiols, Extraction (Chemistry), Mass transfer
Publisher:	InTech
Place of Publication:	[Rijeka, Croatia]
ISBN:	978-953-307-215-9
Book Title:	Mass transfer in multiphase systems and its applications
Editor:	El-Amin, Mohamed
Date:	2011
Page Range:	pp. 207-232
Status:	Peer Reviewed
Access rights to Published version:	Open Access
Funder:	Romania. Ministerul Educației, Cercetării, Tineretului și Sportului
Grant number:	PNII IDEI 262/2007 (MECTS)
References:	Astarita, G. (1967). Mass Transfer With Chemical Reaction, Elsevier Publishing Co, Amsterdam Barbulescu A. & Koncsag C.(2007). A new model for estimating mass transfer coefficients for the extraction of ethanethiol with alkaline solutions in packed columns, Appl. Math. Modell, Elsevier, 31(11), 2515-2523, ISSN 0307-904X Crawford, J.W. & Wilke, C.R. (1951). Limiting flows in packed extraction columns, Chem. Eng. Prog, 47, 423-431, ISSN 0360-7275 Ermakov, S.A.; Ermakov, A.A.; Chupakhin, O.N.&Vaissov D.V.(2001). Mass transfer with chemical reaction in conditions of spontaneous interfacial convection in processes of liquid extraction, Chemical Engineering Journal, 84(3), 321-324, ISSN 1385-8947 Godfrey, J.C. & Slater M.J (1994). Liquid– Liquid Extraction Equipment, John Wiley &Son, ISBN 0471941565, Chichester Hanson, C.(1971). Recent Advances in Liquid-Liquid Extraction, Pergamon-Elsevier, ISBN 9780080156828, Oxford, New York Iacob,L. & Koncsag, C.I. (1999). Hydrodynamic Study of the Drops Formation and Motion in a Spray Tower for the Systems Gasoline –NaOH Solutions, XIth Romanian International Conference On Chemistry and Chemical Engineering (RICCCE XI), Section: Chemical Engineering, Bucureşti, p.131 (on CD) Koncsag, C.I.& Stratula, C. (2002). Extractia lichid- lichid în coloane cu umplutură structurată.Partea I: Studiul hidrodinamic, Revista de Chimie, 53 (12), 819-823, ISSN0034-7752 Koncsag, C.I. (2005). Models predicting the flooding capacity of the liquid- liquid extraction columns equipped with structured packing, Proceedings of the 7th World Congress of Chemical Engineering, Glasgow,UK, ISBN 0 85295 494 8 (CD ROM) Koncsag, C.I. & Barbulescu,A.(2008). Modelling the removal of mercaptans from liquid hydrocarbon streams in structured packing columns, Chemical Engineering and Processing, 47, 1717-1725, ISSN0255-2701 Laddha, G.S.& Dagaleesan, T.E.(1976). Transport Phenomena in Liquid-Liquid Extraction, Tata- McGraw-Hill, ISBN 0070966885, New Delhi Misek, T. (1994). Chapter 5. General Hydrodynamic Design Basis for Columns, în Godfrey, J.C. & Slater M.J.Liquid– Liquid Extraction Equipment, John Wiley &Son, ISBN 0471941565 Chichester Nemunaitis, S.R., Eckert, J.S., Foot E.H. & Rollison, L.H. (1971). Packed liquid-liquid extractors, Chem. Eng. Prog., 67(11), 60-64, ISSN 0360-7275 Pohorecki, R.(2007). Effectiveness of interfacial area for mass transfer in two-phase flow in microreactors, Chem. Eng. Sci., 62, 6495-6498, ISSN 0009-2509 Pratt, H.R.C. (1983). Interphase mass transfer, Handbook of Solvent Extraction, Wiley/Interscience, ISBN 0471041645, New York Thornton, J.D.(1956). Spray Liquid-Liquid Extraction Column:Prediction of Limiting Holdip and Flooding Rates, Chem. Eng. Sci., 5, 201-208, ISSN 0009-2509 Treybal, R.E. (2007). Liquid Extraction, Pierce Press, ISBN 978-1406731262, Oakland, CA Sarkar, S., Mumford, C.J. & Phillips C.R. (1980). Liquid-liquid extraction with interpase chemical reaction in agitated columns.1.Mathematical models., Ind. Eng. Chem. Process Des. Dev., 19, 665-671, ISSN 0196-4305 Seibert, A.F. & Fair, J.R. (1988) Hydrodynamics and mass transfer in spray and packed liquid-liquid extraction columns, Ind. Eng. Chem. Res., 27, 470-481, ISSN 0888-5885 Seibert, A.F. Reeves, B.E. and Fair, J.R.(1990), Performance of a Large-Scale Packed Liquid- Liquid Extractor, Ind. Eng. Chem. Res., 29 (9), 1907-1914, ISSN 0888-5885 Watson, J.S , McNeese, L.E. ,Day, J& Corroad, P.A.(1975). Flooding rates and holdup in packed liquid-liquid extraction columns, AIChEJ, 21(6), 1980-1986, ISSN 0001-1541 Wilke, C.R & Chang, P.(1955). Correlation of diffusion coefficients in dillute solutions, AIChEJ,1 (2), 264-270, ISSN 0001-1541 Zhu S.L.& Luo G.S. in Proceedings of the International Solvent Extraction Conference ISEC’96, Value Adding Through Solvent Extraction, ISBN 073251250, University of Melbourne, p.1251-1255
URI:	http://wrap.warwick.ac.uk/id/eprint/36806

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