Gas Phase Acetoxylation of Methyl Aromatics to their Corresponding Esters over PdSb/TiO2 Catalysts : Activation, Steady-State Operation, Deactivation and Regeneration

Neetika Madaan

doi:10.18453/rosdok_id00000962

Neetika Madaan

Gas Phase Acetoxylation of Methyl Aromatics to their Corresponding Esters over PdSb/TiO2 Catalysts : Activation, Steady-State Operation, Deactivation and Regeneration

Universität Rostock, 2011

https://doi.org/10.18453/rosdok_id00000962

Abstract: Acetoxylation of toluene (Tol) to Benzyl acetate (BA) takes place in the presence of acetic acid and O2. Pd based catalysts are known to be active for this system. In this study, Pd-Sb/TiO2 catalyst pre-treated in helium showed 54 % of toluene conversion and 89 % of BA selectivity with stability of 25 hours. The deactivated catalysts were effectively regenerated at 300 °C/2h/air. Additionally pressure showed strong influence on the performance. Acetoxylation with other substituted toluenes with varying electron withdrawing and donating group were also successfully performed.

Dissertation Freier Zugang

Titel:

Gas Phase Acetoxylation of Methyl Aromatics to their Corresponding Esters over PdSb/TiO2 Catalysts: Activation, Steady-State Operation, Deactivation and Regeneration

Beteiligte Personen:

Neetika Madaan[VerfasserIn]
	1018502777
Angelika Brückner , Prof. Dr.[AkademischeR BetreuerIn]
Andreas Martin , Dr. habil.[AkademischeR BetreuerIn]
Erhard Kemnitz , Prof. Dr.[AkademischeR BetreuerIn]

Beteiligte Körperschaften:

Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

Acetoxylation of toluene (Tol) to Benzyl acetate (BA) takes place in the presence of acetic acid and O2. Pd based catalysts are known to be active for this system. In this study, Pd-Sb/TiO2 catalyst pre-treated in helium showed 54 % of toluene conversion and 89 % of BA selectivity with stability of 25 hours. The deactivated catalysts were effectively regenerated at 300 °C/2h/air. Additionally pressure showed strong influence on the performance. Acetoxylation with other substituted toluenes with varying electron withdrawing and donating group were also successfully performed. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

540 Chemie

Veröffentlichung /
Entstehung:

Rostock: Universität Rostock

2011

Identifikatoren: