Separation of Abietic Acid from Other Acids Using a Fractional Extraction System

This Demonstration studies the separation of abietic acid (component B) from other acids (component A) using a fractional extraction system.
Solvent 1 (see setup) is pure heptane and enters at , while solvent 2 is pure methyl cellosolve and 10% water flowing at . Solvents 1 and 2 are assumed completely immiscible.
The feed is composed of 5% weight abietic acid in solvent 2. The feed flow rate is 1 kg/hr.
Set the percent recovery of abietic acid in the bottom stream and the Demonstration will compute the total number of stages as well as the optimum feed stage location.
  • Contributed by: Housam Binous and Ahmed Bellagi
  • King Fahd University of Petroleum & Minerals and École nationale d'ingénieurs de Monastir


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[1] P. C. Wankat, Separation Process Engineering, 2nd ed., Upper Saddle River, NJ: Prentice Hall, 2007.
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