| Titre : | Synthesis of stainless-steel-net supported TS-1 catalyst and Its catalytic performance in liquid-phase epoxidation reactions (2011) |
| Auteurs : | Yuting Zheng, Auteur ; Yingtian Zhang, Auteur ; Zhendong Wang, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 50 N° 16, Août 2011) |
| Article en page(s) : | pp. 9587-9593 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Epoxidation Liquid phase Catalytic reaction Catalyst Stainless steel |
| Résumé : | TS-1 particles were loaded on stainless-steel-net (SSN) to form an integrated material (TS-1/SSN) by secondary hydrothermal synthesis. This avoided completely the filtration separation in both catalyst preparation and catalytic applications in liquid-phase reactions. Seeding-assisted secondary crystallization prevented zeolite from detaching from the support during the synthesis process. The TS-1 particles were coated on the SSN support uniformly, and their loading amount was adjustable in the range of 7―25 wt % by repeating the seeding and crystallization processes. UV―visible and IR spectra verified that the titanium species in TS-1/SSN mostly occupied the tetrahedral coordination sites in the zeolite framework. TS-1/SSN was comparably active to conventional TS-1 particles in batchwise epoxidation of 1-hexene with H2O2. The zeolite particles maintained the catalytic activity and did not detach from the SSN after five reuses. Moreover, TS-I/SSN proved to be efficient and reusable in continuous epoxidation of allyl chloride where the separation of products and catalyst occurred easily. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=24425201 |
