Recovery of Glutaric Acid Using Tri-N-Butyl Phosphate: Effect of Diluents and Temperature
Kanti Kumar Athankar*, Kailas L Wasewar, Mahesh N Varma and Diwakar Z Shende
Advance Separation and Analytical Laboratory (ASAL), Department of Chemical Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur (Maharashtra), India
- *Corresponding Author:
- Kanti Kumar Athankar
Advance Separation and Analytical Laboratory (ASAL)
Department of Chemical Engineering
Visvesvaraya National Institute of Technology (VNIT)
Nagpur, Maharashtra, India
E-mail: [email protected]
Received Date: January 02, 2017 Accepted Date: February 16, 2017 Published Date: March 01, 2017
Citation: Athankar KK, Wasewar KL, Varma MN, Shende DZ (2017) Recovery of Glutaric Acid Using Tri-N-Butyl Phosphate: Effect of Diluents and Temperature. J Chem Eng Process Technol 8: 326. doi: 10.4172/2157-7048.1000326
Copyright: © 2017 Athankar KK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Reactive separation of glutaric acid with tri-n-butyl phosphate in ethyl acetate and hexanol was studied to explain the effect of temperature on the extraction. Extraction was carried out at different temperature range of 308-338 K. The reactive extraction results were discussed in terms of overall distribution coefficients (KD), degree of extraction (η%), loading ratio (φ), and equilibrium complexation constants (KE). The results showed that an increase in temperature reduced distribution coefficients and extraction efficiency for both diluent used in the organic phase. Moreover, thermodynamic function viz enthalpy (ΔH), entropy (ΔS) and Gibbs free energy (ΔG) were calculated. Reactive extraction of glutaric acid by tri-n-butyl phosphate resulted in negative values of enthalpy. Thus, the reactive extraction process is an exothermic reaction.