Phase equilibria in systems containing [alpha]-tocopherol and dense gas /
Solubility of ▫$\alpha$▫-tocopherol in CO2 and propane was determined at temperatures 303, 313, 333 and 353 K and over a pressure range from 79 to 286 bar for CO2 and 16 to 112 bar for propane. A static-analytic method was applied. The solubility of ▫$\alpha$▫-tocopherol in dense CO2 under the condi...
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| Main Authors: | , , |
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| Format: | Book Chapter |
| Jezik: | English |
| Teme: | |
| Online dostop: | http://dx.doi.org/10.1016/S0896-8446(02)00166-3 |
| Sorodne knjige/članki: | Vsebovano v:
The Journal of supercritical fluids |
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| LEADER | 02199naa a2200217 ib4500 | ||
|---|---|---|---|
| 001 | 7979286 | ||
| 003 | SI-MaCOB | ||
| 005 | 20031002000000.0 | ||
| 008 | 030620s2003 xxu|||||||||||||| ||eng c | ||
| 040 | |a KTFMB |b slv |c SI-MaIIZ |d KTFMB |e ppiak | ||
| 080 | |a 66.02 | ||
| 100 | 1 | |a Škerget, Mojca. |4 aut | |
| 245 | 0 | 0 | |a Phase equilibria in systems containing [alpha]-tocopherol and dense gas / |c Mojca Škerget, Petra Kotnik, Željko Knez. |
| 300 | |a str. 181-191. | ||
| 520 | |a Solubility of ▫$\alpha$▫-tocopherol in CO2 and propane was determined at temperatures 303, 313, 333 and 353 K and over a pressure range from 79 to 286 bar for CO2 and 16 to 112 bar for propane. A static-analytic method was applied. The solubility of ▫$\alpha$▫-tocopherol in dense CO2 under the conditions investigated was in the range of 0.2-17.0 mg/g CO2. The maximal solubilities of ▫$\alpha$▫-tocopherol in propane were approximately up to ten times higher than in CO2 and were in the range from 38.9 to 171.9 mg/g propane. Phase equilibrium data for Milk Thistle seed oil in supercritical CO2 were determined at temperatures 313, 333 and 353 K and pressures ranging from 100 to 300 bar. The oil was previously additionally vitaminized and contained 1.9 wt.% of ▫$\alpha$▫-tocopherol and 1.7 wt.% of free fatty acids (FFA). The solubility of oil in CO2 was in the range from 1.3 to 17.9 mg/g CO2. The distribution coefficients of ▫$\alpha$▫-tocopherol and FFA between light and heavy phase were determined on a solvent free basis. The obtained separation factors increased with temperature and pressure to approximately 160-200 bar and decreased with a further increase of pressure. | ||
| 653 | 0 | |a kemijska procesna tehnika |a superkritični fluidi |a fazna ravnotežja |a separacijski faktor |a vitamin E |a CO2 |a plini visoke gostote | |
| 653 | 0 | |a chemical processing |a supercritical fluids |a phase equilibria |a separation factors |a vitamin E |a CO2 |a dense gases | |
| 700 | 1 | 2 | |a Kotnik, Petra. |4 aut |
| 700 | 1 | 2 | |a Knez, Željko. |4 aut |
| 773 | 0 | |t The Journal of supercritical fluids |b [Print ed.] |d Cincinnati, OH : PRA Press |x 0896-8446 |g Vol. 26, iss. 3 (2003), str. 181-191 | |
| 856 | 4 | 1 | |u http://dx.doi.org/10.1016/S0896-8446(02)00166-3 |