Ramsauer, B. and Neueder, R. and Kunz, Werner (2008) Isobaric vapour-liquid equilibria of binary 1-propoxy-2-propanol mixtures with water and alcohols at reduced pressure. FLUID PHASE EQUILIBRIA, 272 (1-2). pp. 84-92. ISSN 0378-3812,
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A dynamic recirculation apparatus has been used to determine the isobaric phase equilibria of binary 1-propoxy-2-propanol mixtures with water and different alcohols (methanol, ethanol, 2-butanol and 1 hexanol). The systems exhibit both positive and negative deviations from Raoult's law. No azeotropic mixture is found in any of the systems under investigation. The binary diagram of water/1-propoxy-2-propanol (PnP) shows the well-known liquid-liquid-separation. The experimental results are correlated with the Wilson, NRTL and UNIQUAC model and also compared to the COSMO-RS predictive model and the modified UNIFAC group-contribution method. Additionally, the vapour pressure of PnP has been determined experimentally up to 140 degrees C as prerequisite for modelling of the data. (c) 2008 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GLYCOL ETHERS; EQUATION; TEMPERATURES; DEPENDENCE; SYSTEMS; MODELS; POINT; NRTL; Vapour pressure; 1-Propoxy-2-propanol; VLE; Correlation; COSMO-RS |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Oct 2020 09:50 |
| Last Modified: | 21 Oct 2020 09:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30165 |
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