434895 Liquid-Liquid Equilibria in Aqueous Two Phase System (K2HPO4/1,3-propanediol/water/methanol) for 1,3-Propanediol Extraction

Wednesday, November 11, 2015: 10:10 AM
155E (Salt Palace Convention Center)
Juan David Gómez Rodríguez, Paulo Cesar Narváez Rincón, Gustavo Buitrago Hurtado and Dolly Montoya Castaño, Universidad Nacional de Colombia, Bogotá, Colombia

Biobased production of 1,3-propanediol is a good alternative to adding value to raw glycerin byproduct of biodiesel production process. Technologies used in downstream processing significantly influences the cost of capital and production. Aqueous two phase extraction (ATPE) has been reported as a suitable alternative for 1,3-propanediol extraction. This paper presents liquid-liquid equilibria (LLE) data for quaternary aqueous two phase system of water + 1,3-propanediol + methanol + K2HPO4 at T = 308.15 K . The experimental LLE data were correlated with NRTL-Electrolyte model. Distribution coefficients and selectivity were derived from the experimental LLE data to evaluate 1,3-propanediol extraction.

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