What is Liquid-Liquid Extraction?
Liquid–liquid extraction (LLE), also known as solvent extraction, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar). There is a net transfer of one or more species from one liquid into another liquid phase, generally from aqueous to organic. The transfer is driven by chemical potential, i.e. once the transfer is complete, the overall system of chemical components that make up the solutes and the solvents are in a more stable configuration (lower free energy). The solvent that is enriched in solute(s) is called extract. The feed solution that is depleted in solute(s) is called the raffinate.
How to Calculate Number of Ideal Equilibrium Extraction Stages?
Number of Ideal Equilibrium Extraction Stages calculator uses Number of Equilibrium Extraction Stages = (log10(Mass Fraction of Solute in the Feed/N Stages Mass Fraction of Solute in Raffinate))/(log10(((Distribution Coefficient of Solute*Solute Free Extract Phase Flowrate in LLE)/Solute Free Feed Flowrate in Extraction)+1)) to calculate the Number of Equilibrium Extraction Stages, The Number of Ideal Equilibrium Extraction Stages formula is defined as the number of equilibrium extraction stages required to achieve the extraction of raffinate mass fraction from the given feed mass fraction. Number of Equilibrium Extraction Stages is denoted by N symbol.
How to calculate Number of Ideal Equilibrium Extraction Stages using this online calculator? To use this online calculator for Number of Ideal Equilibrium Extraction Stages, enter Mass Fraction of Solute in the Feed (zC), N Stages Mass Fraction of Solute in Raffinate (XN), Distribution Coefficient of Solute (KSolute), Solute Free Extract Phase Flowrate in LLE (E') & Solute Free Feed Flowrate in Extraction (F') and hit the calculate button. Here is how the Number of Ideal Equilibrium Extraction Stages calculation can be explained with given input values -> 2.998807 = (log10(0.5/0.0334))/(log10(((2.6*62)/110)+1)).