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Titolo:
Direct oxidation of propylene and other olefins on precious metal containing Ti-catalysts
Autore:
Laufer, W; Hoelderich, WF;
Indirizzi:
Rhein Westfal TH Aachen, Dept Chem Technol & Heterogenous Catalysts, D-52074 Aachen, Germany Rhein Westfal TH Aachen Aachen Germany D-52074 , D-52074 Aachen, Germany
Titolo Testata:
APPLIED CATALYSIS A-GENERAL
fascicolo: 2, volume: 213, anno: 2001,
pagine: 163 - 171
SICI:
0926-860X(20010530)213:2<163:DOOPAO>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONTAINING TITANIUM SILICALITE; HYDROGEN-PEROXIDE; EPOXIDATION; OXYGEN; PLATINUM; OXIDE;
Keywords:
direct oxidation; propylene oxide; precious metal containing TS-1 and Ti-MCM-41;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Hoelderich, WF Rhein Westfal TH Aachen, Dept Chem Technol & Heterogenous Catalysts, Worringerweg 1, D-52074 Aachen, Germany Rhein Westfal TH Aachen Worringerweg 1 Aachen Germany D-52074
Citazione:
W. Laufer e W.F. Hoelderich, "Direct oxidation of propylene and other olefins on precious metal containing Ti-catalysts", APP CATAL A, 213(2), 2001, pp. 163-171

Abstract

The properties and performance of an O-2-H-2 system used for the direct oxidation of olefins have been studied on the example of direct oxidation of propylene. Ti-catalysts modified by impregnation with palladium tetraminenitrate and platinum tetraminechloride and by followed reduction under various conditions were used as bifunctional catalysts. New investigations showedthat the pre-impregnation of the catalyst with salt and the using of alcohols or ketones as solvent for the impregnation of the catalyst with precious metal improved the selectivity of propylene oxide (PO). Also the influence of other precious metals such as Ir or Au as promoters on titanium silicalite-1 (TS-1) has been studied. In addition to propylene, other olefins like styrene or terpenes were also tested in direct oxidation with an O-2-H-2 system by using Pd/PtrTS-1 or Pd/Pt/Ti-MCM-41, respectively. The use of these olefins as substrate lead to low yields of the desired product and showed the limits of the O-2-H-2 oxidation system, so far. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 07:38:22