Extraction Factor Formula:
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Definition: The Extraction Factor is defined as the ratio of the slope of equilibrium line to the slope of operating line in liquid-liquid extraction processes.
Purpose: It helps chemical engineers determine the efficiency of solute transfer between phases in extraction operations.
The calculator uses the formula:
Where:
Explanation: The product of equilibrium slope and solvent flow is divided by feed flow to determine the extraction efficiency.
Details: Proper calculation ensures optimal design of extraction equipment, efficient solute recovery, and cost-effective operation.
Tips: Enter the mean slope of equilibrium curve, solute-free solvent flowrate, and solute-free feed flowrate. All values must be > 0.
Q1: What does the extraction factor indicate?
A: Values > 1 indicate efficient extraction, while values < 1 suggest poor solute transfer.
Q2: How is the mean slope of equilibrium curve determined?
A: It's typically obtained from experimental equilibrium data or thermodynamic models.
Q3: What are typical units for flowrates?
A: While kg/s is used here, any consistent mass/time units can be used as long as both flowrates have the same units.
Q4: When would the extraction factor be exactly 1?
A: When the operating line is exactly parallel to the equilibrium line (rare in practice).
Q5: How does this relate to theoretical stages?
A: Higher extraction factors typically require fewer theoretical stages for the same separation.