TW239122B - Process of separation of p-Diethylbenzene from diethylbenzene isomers - Google Patents
Process of separation of p-Diethylbenzene from diethylbenzene isomersInfo
- Publication number
- TW239122B TW239122B TW81109634A TW81109634A TW239122B TW 239122 B TW239122 B TW 239122B TW 81109634 A TW81109634 A TW 81109634A TW 81109634 A TW81109634 A TW 81109634A TW 239122 B TW239122 B TW 239122B
- Authority
- TW
- Taiwan
- Prior art keywords
- diethylbenzene
- isomers
- pressure
- adsorbent bed
- atm
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process of separation of p-Diethylbenzene from Diethylbenzene isomers, in which the isomers contains at least one m-Diethylbenzene and o-Diethylbenzene, the process comprises: (a) using high pressure CO2, in which the pressure is higher than 27 atm, as carrier to feed the isomers through a silicalite adsorbent bed to undergo selective adsorption on p-Diethylbenzene, in which the selective adsorption process is taken place at 24-48 atm, 323-393 K and the CO2 flowrate being 15.0-40.0 cm3/min (temperature and pressure of the adsorbent bed) to obtain first product stream which has passed the adsorbent bed and is enriched in m-Diethylbenzene and/or o-Diethylbenzene and substantially contains no p-Diethylbenzene; and (b) when the concentration of p-Diethylbenzene in the first product stream containing isomers reaching 95-100 wt %, introducing a higher pressure CO2, in which the pressure is at 50-102 atm, through the adsorbent bed to de-absorb the absorbent bed to obtain second product stream which contains essentially pure p-Diethylbenzene and no other Diethylbenzene isomers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW81109634A TW239122B (en) | 1992-12-01 | 1992-12-01 | Process of separation of p-Diethylbenzene from diethylbenzene isomers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW81109634A TW239122B (en) | 1992-12-01 | 1992-12-01 | Process of separation of p-Diethylbenzene from diethylbenzene isomers |
Publications (1)
Publication Number | Publication Date |
---|---|
TW239122B true TW239122B (en) | 1995-01-21 |
Family
ID=51400763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW81109634A TW239122B (en) | 1992-12-01 | 1992-12-01 | Process of separation of p-Diethylbenzene from diethylbenzene isomers |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW239122B (en) |
-
1992
- 1992-12-01 TW TW81109634A patent/TW239122B/en active
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