Downstream Processing — Solvent Extraction and Liquid Membrane Permeation

Unit operations with intrinsic chemical reactions, like solvent extraction (SX) and liquid membrane permeation (LMP), offer the possibility to design selective separation processes. Ion exchanger types used for downstream processing are discussed. The influence of chemical parameters on the separation of an amino acid (1-phenylanaline) is shown as an example. A comparison of LMP and SX technique is given with emphasis on the difference of mass transfer mechanism and devices needed