![]() ![]() Connect to operating point with a straight line, mark the location of. ![]() Connect point to operating point with a straight line, mark the location of. Determine the number of equilibrium stages required to achieve the desired separation with the selected solvent mass.Note the intersection of these two lines and label as “ ”. On a fresh copy of the graph, with plenty of blank space on each side of the diagram, note the location of points, , and (specified/selected) and (determined in step 3).Draw a straight line from to and extend to find the location of on the equilibrium curve. Locate point on the ternary phase diagram.Use this composition to locate point along the straight line connection points and. Do a material balance to find the composition of one species in the overall mixture.Locate points and on the ternary phase diagram.= Mass fraction of species in the extract leaving stage Process schematic for multistage liquid-liquid extraction.ĭetermining number of stages when (1) feed rate (2) feed composition (3) incoming solvent rate (4) incoming solvent composition and (5) outgoing raffinate composition have been specified/selected. = Mass fraction of species in the raffinate leaving stage This could refer to the mass of the stream or the composition of the stream. is expected to be located outside of the ternary phase diagram. Every pair of passing streams must be connected by a straight line that passes through point. is determined by the intersection of the straight line connecting points (, ) and the straight line connecting points (, ). will be located within the ternary phase diagram. Points ( and ) and ( and ) must be connected by a straight line that passes through point. = Composition of the mixture representing the overall system. This is where the fresh solvent S enters the system and the final raffinate leaves the system. 3 Liquid-liquid Extraction Staged Liquid-Liquid Extraction and Hunter Nash Method ![]()
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