Solubilities of p-quinone and 9,10-anthraquinone in supercritical carbon dioxide
- National Technical Univ. of Athens (Greece)
Equilibrium solubilities of p-quinone (1,4-benzoquinone) and 9,10-anthraquinone at 35 C and 45 C in supercritical carbon dioxide over a pressure range of about (85--300) bar have been measured using a supercritical fluid extractor coupled with a high-pressure liquid chromatography apparatus. The solubility results, along with those reported in the literature for 1,4-naphthoquinone, are correlated with a modified Peng-Robinson equation of state. The ability of a supercritical fluid to separate a multicomponent mixture is unique, since it utilizes the salient features of both distillation and liquid extraction. The solubility of a solute in a supercritical fluid is the most important thermophysical property that has to be determined and modeled for an efficient design of any extraction based on supercritical solvents.
- OSTI ID:
- 509410
- Journal Information:
- Journal of Chemical and Engineering Data, Vol. 42, Issue 3; Other Information: PBD: May-Jun 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solubilities of phenols in supercritical carbon dioxide
Kinetic studies on the reaction center protein from Rhodopseudomonas sphaeroides: the temperature and free energy dependence of electron transfer between various quinones in the Q/sub A/ site and the oxidized bacteriochlorophyll dimer