Abstract
Activity coefficients at infinite dilution provide a useful tool for the selection of solvents for extractive distillation or extraction. In this work activity coefficients at infinite dilution are reported for 36 solutes (alkanes, alkenes, alcohols, ketones, aromatic hydrocarbons, cyclic hydrocarbons, aldehydes, ethers, esters, halocarbons, and acetonitrile) in N-methyl-2-piperidone at three temperatures (303.41, 313.43, and 323.45) K, measured with the help of gas−liquid chromatography. The experimental data are compared with data from literature and with the results of the modified UNIFAC (Dortmund) method. Furthermore the selectivity of N-methyl-2-piperidone for the separation of hexane from benzene was compared with the selectivity of N-methyl-2-pyrrolidone and N-methyl-6-caprolactam. The observed temperature dependence of the activity coefficients at infinite dilution is confirmed using excess enthalpy data predicted with modified UNIFAC (Dortmund).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
