From tandem to catalysis – organic solvent nanofiltration for catalyst separation in the homogeneously W-catalyzed oxidative cleavage of renewable methyl 9,10-dihydroxystearate
| dc.contributor.author | Vondran, Johanna | |
| dc.contributor.author | Peters, Marc | |
| dc.contributor.author | Schnettger, Alexander | |
| dc.contributor.author | Sichelschmidt, Christian | |
| dc.contributor.author | Seidensticker, Thomas | |
| dc.date.accessioned | 2023-03-07T13:57:31Z | |
| dc.date.available | 2023-03-07T13:57:31Z | |
| dc.date.issued | 2022-04-25 | |
| dc.description.abstract | Feasibility of oxidative cleavage of methyl oleate in a homogeneous reaction, facilitating the subsequent recovery of the catalyst from a single phase, is a challenge. Using the high molecular catalyst phosphotungstic acid (2880 Da) as an affordable catalyst offers potential for membrane separation. To gain insight into side-reactions, the intermediate methyl 9,10-dihydroxystearate was first applied as a model substrate. Thus, the stability of the intermediate methyl 9,10-epoxystearate and the vicinal diol was significantly improved under reaction conditions. Oxidative cleavage of the vicinal diol as a stable intermediate is very promising reaching an overall selectivity of 90% and a selectivity towards the cleavage carboxylic acids of 80%, considering dilution and acidity as the most important parameters. Retention of the catalyst via organic solvent nanofiltration was investigated and we retained 94% of the catalyst in the monophasic system as the first step towards a process concept for a product purification or catalyst recycling strategy. | en |
| dc.identifier.uri | http://hdl.handle.net/2003/41284 | |
| dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-23126 | |
| dc.language.iso | en | de |
| dc.relation.ispartofseries | Catalysis science & technology;12(11) | |
| dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | |
| dc.subject.ddc | 660 | |
| dc.title | From tandem to catalysis – organic solvent nanofiltration for catalyst separation in the homogeneously W-catalyzed oxidative cleavage of renewable methyl 9,10-dihydroxystearate | en |
| dc.type | Text | de |
| dc.type.publicationtype | article | de |
| dcterms.accessRights | open access | |
| eldorado.secondarypublication | true | de |
| eldorado.secondarypublication.primarycitation | Catal. Sci. Technol., 2022,12, 3622-3633 | de |
| eldorado.secondarypublication.primaryidentifier | https://doi.org/10.1039/D1CY02317A | de |