Bahmanyar, A., Khoobi N., Moharrer, M.M.A. and Bahmanyar, H. (2014). “Mass transfer from nanofluid drops in a pulsed liquid–liquid extraction column.” Chemical Engineering Research and Design, Vol. 92, pp. 2313-2323.
 Kelly, K., Yung, L. and Craig, D. (2012). “The use of an ionic liquid in a Karr reciprocating plate extraction column.” Chemical Engineering Research and Design, Vol. 90, pp. 2034-2040.
 Yuan, S., Shi, Y., Yin, H., Chen, Z. and Zhou, J. (2014). “An improved Correlation of the Drop Size in a Modified Scheibel Extraction Column.” Chemical Engineering Technology, Vol. 37, pp. 2165-2174.
 Sai, M. and Pingli L. (2014). “Reaction extraction of furfural from pentose solutions in a modified Scheibel column.” Chemical Engineering and Processing: Process Intensification, Vol. 83, pp. 71-78.
 Mjalli, F.S., Nabil, M., Abdel, J. and Fletcher, J.P. (2005). “Modeling, simulation and control of a Scheibel liquid–liquid contactor: Part 1. Dynamic analysis and system identification.”Chemical Engineering and Processing: Process Intensification, Vol. 44, pp. 541-553.
 Alatiqi, I., Aly, G., Mjalli, F. and Mumford, C.J. (1995). “Mathematical Modeling and Steady-State Analysis of a Scheibel Extraction Column.” The Canadian Journal of Chemical Engineering, Vol. 73, pp. 523-533.
 Bonnet, J.C. and Jeffreys, G.V. (1985). “Hydrodynamics and mass transfer characteristics of a Scheibel extractor. Part II: Backmixing and stage efficiency.” AIChE Journal, Vol. 31, pp. 795-801.
 Godfrey, J.C. and Slater, M.J. (1991). “Slip velocity relationships for liquid–liquid extraction columns.” Chemical Engineering Research and Design, Vol. 69, pp. 130-141.
 Napeida, M., Haghighi-Asl, A., Safdari, J. and Torab-Mostaedi, M. (2010). “Holdup and characteristic velocity in a Hanson mixer-settler extraction column.” Chemical Engineering Research and Design, Vol. 88, pp. 703-711.
 Komasawa, I. and Ingham, J. (1978). “Effect of system properties on the performance of Liquid-Liquid extraction columns-II: Oldshue-Rushton column.” Chemical Engineering Science,Vol. 33, pp. 479-485.
 Zhang, L. and Pan, Q. (2006). “Liquid phase mixing and gas holdup in a multistage-agitated contactor with co-current upflow of air/viscous fluids.” Chemical Engineering Science, Vol. 61, pp. 6189-6198.
 Kadam, B.D., Joshi, J.B. and Patil, R.N. (2009). “Hydrodynamic and mass transfer characteristics of asymmetric rotating disc extractors.” Chemical Engineering Research and Design, Vol. 87, pp. 756-769.
 Misek, T., Berger, R. and Schröter, J. (1985). “Standard test systems for liquid extraction studies.” European Federation of Chemical Engineering by Institution of Chemical Engineers. 2nd ed.
 Kasatkin, A.G., Kagan, S.Z. and Trukhanov, V.G. (1962). “Holdup of rotating disc extractors.” Journal of Applied Chemistry, Vol. 35, pp. 1903-1910.
 Sarkar, S., Phillips, C.R. and Mumford, C.J. (1985). “Characterization of hydrodynamic parameters in rotating disc and Oldshue-Rushton columns. Hydrodynamic modeling, drop size, holdup and flooding.” The Canadian Journal of Chemical Engineering, Vol. 63, pp. 701-709.
 Tsouris, C., Ferreira, R. and Tavlarides, L.L. (1990). “Characterization of hydrodynamic parameters in a multistage column contactor.” The Canadian Journal of Chemical Engineering, Vol. 68, pp. 913-923.
 Kumar, A. and Hartland, S. (1995). “A unified correlation for the prediction of dispersed phase holdup in liquid–liquid extraction columns.” Industrial & Engineering Chemistry Research, Vol. 34, pp. 3925-3940.
 Oliveira, N.S., Silva, D.M., Gondim, M.P.C. and Mansur, M.B. (2008). “A study of the drop size distributions and holdup in short Kuhni columns.” Brazilian Journal of Chemical Engineering, Vol. 25, pp. 729-741.
 Hemmati, A.R., Shirvani, M., Torab-Mostaedi, M. and Ghaemi, A. (2015). “Holdup and flooding characteristics in a perforated rotating disc contactor (PRDC).” RSC Advances, Vol. 5, pp. 63025-63033.
 Asadollahzadeh, M., Torab-Mostaedi, M., Shahhosseini, S.H. and Ghaemi, A. (2016). “Experimental investigation of dispersed phase holdup and flooding characteristics in a multistage column extractor.” Chemical Engineering Research and Design, Vol. 105, pp. 177-187.