A group of people sitting together

Ram Lavie

Professor Emeritus

Research Fields

Analysis, Design, Simulation, Operation and Control of Processes
Periodic Separation Processes and Heat-Mass-Exchange

Research Topics

Thin Layer Extraction
Thin Layer Extraction (TLX) is a novel periodic Liquid-Liquid Extraction method whereby two liquids, one a donor and the second a recipient interact periodically and frequently with a thin layer of an extractant that is immobilized on a thin microporous substrate. The present work focuses on the development of practical implements and applications.


Ram Lavie, “Kinetic Reactive Thin Layer Extraction”,  Ind. & Eng. Chemistry Research, 2014, Vol. 53, Issue 47, pages 18283–18290, DOI:  10.1021/ie5026387.

Ram Lavie, “Kinetic Chiral Resolution by Thin Layer Extraction”, Chemical Engineering Transactions, Vol. 32, 2013, pp.1945-1950, DOI:10.3303/CET1332325.

Lavie R., “Chiral Resolution of Ionic Compounds by Thin Layer Extraction”, Ind. & Eng. Chemistry Research,2011, Vol. 50, Issue 22, pages 12311-12844, DOI: 10.1021/ie201596n.

R. Lavie and S, Wajc, “Chiral Resolution by Thin Layer Extraction”, Chemical Engineering Transactions, 2011, Volume 24, pages 739-744, 2011, DOI: 10.3303/CET1124124.

R. Lavie, ” Thin Layer Extraction – A Novel Liquid-Liquid Extraction Method”, AIChE Journal, Volume 54, Issue 4, Pages 957-964, 2008. DOI: 10.1002/aic.11445

A. Dolev, E. Kehat and R. Lavie, “Intensive Periodic Liquid-Liquid Extraction in a thin Extractant Layer”, Ind. Eng. Chem. Res. Vol. 38 (4),1618-1624 (1999).

J. Rockman, E. Kehat and R. Lavie, “Thermally Enhanced Liquid-Liquid Extraction of Citric Acid through a Supported Liquid Membrane”, AIChE Journal, Vol. 43 (9), 2376-2380 (1997).

G.E. Rotstein, R. Lavie and D.R. Lewin, “Automatic Synthesis of Batch Plant Procedures: A Process-Oriented Approach”. AIChE Journal,.Vol. 40 (10), 1650-1664 (1994).

D.R.Lewin and R.Lavie, “The Identification of Activity Profiles in an Industrial Ammonia Converter”, Chem.Eng.Sci., Vol.40 (8), pp.1393-1399, 1985.

R. Lavie, An Optimal Interaction of Heat and Mass Exchange for the Improvement of Separation Efficiency, Chem. Eng. Sci. Vol. 40 (11), 2019-2025 (1985)

M.M.Denn and R.Lavie, “Dynamics of Plants with Recycle”, The Chemical Engineering Journal, Vol. 24, pp.55-59, 1982.

D. Meir and R.Lavie, “Continuous Cyclic Zone Adsorption”, Chem.Eng.Sci. Vol.29, pp.1133-1138, 1974.