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The Number of Equilibrium Extraction Stages is the number of Ideal Equilibrium stages required for Liquid-Liquid Extraction. Check FAQs
N=log10(zCXN)log10((KSoluteE'F')+1)
N - Number of Equilibrium Extraction Stages?zC - Mass Fraction of Solute in the Feed?XN - N Stages Mass Fraction of Solute in Raffinate?KSolute - Distribution Coefficient of Solute?E' - Solute Free Extract Phase Flowrate in LLE?F' - Solute Free Feed Flowrate in Extraction?

Number of Ideal Equilibrium Extraction Stages Example

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Here is how the Number of Ideal Equilibrium Extraction Stages equation looks like with Values.

Here is how the Number of Ideal Equilibrium Extraction Stages equation looks like with Units.

Here is how the Number of Ideal Equilibrium Extraction Stages equation looks like.

2.9988Edit=log10(0.5Edit0.0334Edit)log10((2.6Edit62Edit110Edit)+1)
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Number of Ideal Equilibrium Extraction Stages Solution

Follow our step by step solution on how to calculate Number of Ideal Equilibrium Extraction Stages?

FIRST Step Consider the formula
N=log10(zCXN)log10((KSoluteE'F')+1)
Next Step Substitute values of Variables
N=log10(0.50.0334)log10((2.662kg/s110kg/s)+1)
Next Step Prepare to Evaluate
N=log10(0.50.0334)log10((2.662110)+1)
Next Step Evaluate
N=2.99880717998376
LAST Step Rounding Answer
N=2.9988

Number of Ideal Equilibrium Extraction Stages Formula Elements

Variables
Functions
Number of Equilibrium Extraction Stages
The Number of Equilibrium Extraction Stages is the number of Ideal Equilibrium stages required for Liquid-Liquid Extraction.
Symbol: N
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Mass Fraction of Solute in the Feed
The Mass Fraction of Solute in the Feed is the mass fraction of the solute in the Feed to the Liquid-Liquid Extraction operation.
Symbol: zC
Measurement: NAUnit: Unitless
Note: Value should be less than 1.
N Stages Mass Fraction of Solute in Raffinate
The N Stages Mass Fraction of Solute in Raffinate Phase is the mass fraction of the solute in the raffinate phase on solute free basis after N Number of LLE Stages.
Symbol: XN
Measurement: NAUnit: Unitless
Note: Value should be less than 1.
Distribution Coefficient of Solute
The distribution coefficient of solute is defined as the concentration of solute in the extract phase divided by the concentration of solute in the raffinate phase.
Symbol: KSolute
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Solute Free Extract Phase Flowrate in LLE
The Solute Free Extract Phase Flowrate in LLE is the flowrate of the extracting solvent after separation in liquid-liquid extraction operation.
Symbol: E'
Measurement: Mass Flow RateUnit: kg/s
Note: Value should be greater than 0.
Solute Free Feed Flowrate in Extraction
The Solute Free Feed Flowrate in Extraction is the flowrate of the carrier liquid to the liquid-liquid extraction operation for separation.
Symbol: F'
Measurement: Mass Flow RateUnit: kg/s
Note: Value should be greater than 0.
log10
The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.
Syntax: log10(Number)

Other Formulas to find Number of Equilibrium Extraction Stages

​Go Number of Extraction Stages by Kremser Equation
N=log10((zC-(ysKSolute)(xC-ysKSolute))(1-(1ε))+(1ε))log10(ε)
​Go Number of Stages for Extraction Factor equal to 1
N=(zC-(ysKSolute)xC-(ysKSolute))-1

Other formulas in Equilibrium Stage Calculations for Immiscible (Pure) Solvent and Carrier Liquid category

​Go Distribution Coefficient of Carrier Liquid from Activity Coefficients
KCarrierLiq=ΥaRΥaE
​Go Distribution Coefficient of Carrier Liquid from Mass Fraction
KCarrierLiq=yAxA
​Go Distribution Coefficient of Solute from Activity Coefficient
KSolute=ΥcRΥcE
​Go Distribution Coefficient of Solute from Mass Fractions
KSolute=yCxC

How to Evaluate Number of Ideal Equilibrium Extraction Stages?

Number of Ideal Equilibrium Extraction Stages evaluator 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 evaluate 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 evaluate Number of Ideal Equilibrium Extraction Stages using this online evaluator? To use this online evaluator 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.

FAQs on Number of Ideal Equilibrium Extraction Stages

What is the formula to find Number of Ideal Equilibrium Extraction Stages?
The formula of Number of Ideal Equilibrium Extraction Stages is expressed as 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)). Here is an example- 2.998807 = (log10(0.5/0.0334))/(log10(((2.6*62)/110)+1)).
How to calculate Number of Ideal Equilibrium Extraction Stages?
With 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') we can find Number of Ideal Equilibrium Extraction Stages using the formula - 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)). This formula also uses Common Logarithm (log10) function(s).
What are the other ways to Calculate Number of Equilibrium Extraction Stages?
Here are the different ways to Calculate Number of Equilibrium Extraction Stages-
  • Number of Equilibrium Extraction Stages=(log10(((Mass Fraction of Solute in the Feed-(Mass Fraction of Solute in the Solvent/Distribution Coefficient of Solute))/(((Mass Fraction of Solute in the Raffinate-Mass Fraction of Solute in the Solvent)/Distribution Coefficient of Solute)))*(1-(1/Extraction Factor))+(1/Extraction Factor)))/(log10(Extraction Factor))OpenImg
  • Number of Equilibrium Extraction Stages=((Mass Fraction of Solute in the Feed-(Mass Fraction of Solute in the Solvent/Distribution Coefficient of Solute))/(Mass Fraction of Solute in the Raffinate-(Mass Fraction of Solute in the Solvent/Distribution Coefficient of Solute)))-1OpenImg
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