CLATHRATE HYDRATE FORMATION ENHANCES NEAR-CRITICAL AND SUPERCRITICAL SOLVENT EXTRACTION EQUILIBRIA
- 1 September 1990
- journal article
- research article
- Published by Informa UK Limited in Chemical Engineering Communications
- Vol. 95 (1), 47-55
- https://doi.org/10.1080/00986449008911466
Abstract
Pre-concentration of dilute aqueous solutions by hydrate formation can improve the effective distribution coefficient and selectivity of solvent extraction. Many solvents can serve simultaneously to promote solution concentration by hydrate formation and also to extract non-polar solutes from the resulting concentrated solution. This concept is illustrated for systems with supercritical ethylene and with near-critical liquid carbon dioxide, and its application to conventional solvents is discussed.Keywords
This publication has 31 references indexed in Scilit:
- Some physical and thermophysical properties of clathrate hydratesJournal of inclusion phenomena and molecular recognition in chemistry, 1987
- Inhibition of gas hydrates by methanolAIChE Journal, 1986
- Composition of gas hydrates. New answers to an old problemJournal of Chemical Education, 1983
- Composition of clathrate gas hydrates of hydrogen sulfide, xenon, sulfur dioxide, chlorine, chloromethane, bromomethane, difluorochloromethane, difluorodichloromethane, and propaneThe Journal of Physical Chemistry, 1983
- Composition of clathrate gas hydrates of chlorodifluoromethane, trichlorofluoromethane, chlorine, perchloryl fluoride, hydrogen sulfide, and sulfur hexafluorideThe Journal of Physical Chemistry, 1981
- The effect of methanol on the stability of clathrate hydratesCanadian Journal of Chemistry, 1981
- Gas HydratesRussian Chemical Reviews, 1968
- PROPYLENE GAS HYDRATE STABILITYCanadian Journal of Chemistry, 1964
- The properties of some new gas hydrates and their use in demineralizing sea waterAIChE Journal, 1962
- Formula and Pressure–Temperature Relationships of the Hydrate of DichlorofluoromethaneThe Journal of Physical Chemistry, 1954