on the publication serverTitle data
Etzold, Bastian ; Jess, Andreas:
Epimerisation of menthol stereoisomers. Part 1: Studies on the intrinsic kinetics
of the heterogeneously menthol production.
In: Chemistry Today.
Vol. 26
(2008)
Issue 3
.
- pp. 21-24.
ISSN 0392-839X
Abstract in another language
The heterogeneously catalysed epimerisation of the menthol stereoisomers is a key step in the synthesis of (-)-menthol in the Symrise process. Due to the thermodynamic equilibrium the mixture of menthol stereoisomers obtained by the hydrogenation of thymol contains only minor amounts of (-)-menthol. In the epimerisation step the residual stereoisomers react again to an equilibrium mixture containing (-)-menthol. Kinetic and thermodynamic data necessary for an accurate reactor design are unknown and were derived for industrial relevant conditions of 150 to 210°C and 0.8 to 7.5 MPa hydrogen pressure. Results of experiments and modelling show a good agreement and thus, the derived kinetic parameters can be used for the optimisation of batch slurry processes as well as of continuous fixed bed processes.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Additional notes: | Chimica Oggi |
| Institutions of the University: | Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Chemical Engineering Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess Faculties |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 540 Chemistry 600 Technology, medicine, applied sciences > 600 Technology 600 Technology, medicine, applied sciences > 620 Engineering 600 Technology, medicine, applied sciences > 660 Chemical engineering |
| Date Deposited: | 22 Jan 2015 08:06 |
| Last Modified: | 13 May 2015 13:13 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/5820 |
