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

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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 (March 2011)
King Fahd University of Petroleum & Minerals and École nationale d'ingénieurs de Monastir
Open content licensed under CC BY-NC-SA




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

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