Determination and correlation of liquid–liquid equilibria for four binary N,N-dimethylformamide + hydrocarbon systems |
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| Authors: | Hiroyuki Matsuda Daisuke TaniguchiJunichi Hashimoto Kiyofumi KuriharaKenji Ochi Kazuo Kojima |
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| Institution: | Department of Materials and Applied Chemistry, Nihon University, 1-8 Kanda Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan |
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| Abstract: | Liquid–liquid equilibrium measurements for four binary N,N-dimethylformamide + hydrocarbon (hexane, heptane, octane, and cyclohexane) systems were performed using a laser scattering technique. The experimentally determined cloud points were satisfactorily correlated with two local composition models (NRTL, and Tsuboka–Katayama's modification of the Wilson equation). In addition, the prediction of LLE by means of the modified UNIFAC (Dortmund) model was also tested. |
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| Keywords: | Experimental Liquid&ndash liquid equilibria N N-Dimethylformamide Activity coefficient model Modified UNIFAC |
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