Catalytic Properties of Silver Vanadium Phosphates in  n ‐Butane Oxidation – Considerations on the Impact of the [V x O y ] Substructure | Zendy

Karpov Andrey | Zendy; Dobner CorneliaKatharina | Zendy; Glaum Robert | Zendy; Schunk Stephan Andreas | Zendy; Rosowski Frank | Zendy

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Catalytic Properties of Silver Vanadium Phosphates in n ‐Butane Oxidation – Considerations on the Impact of the [V x O y ] Substructure

Author(s) -

Karpov Andrey,

Dobner CorneliaKatharina,

Glaum Robert,

Schunk Stephan Andreas,

Rosowski Frank

Publication year - 2011

Publication title -

chemie ingenieur technik

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.365

H-Index - 36

eISSN - 1522-2640

pISSN - 0009-286X

DOI - 10.1002/cite.201100096

Subject(s) - butane , vanadium , catalysis , maleic anhydride , selectivity , chemistry , inorganic chemistry , nuclear chemistry , medicinal chemistry , organic chemistry , polymer , copolymer

Catalysts based on silver vanadium phosphates with a general chemical formula Ag 2 VP x O d (1 ≤ x ≤ 2; 6 ≤ d ≤ 8) have been prepared and tested in gas phase oxidation of n ‐butane. This general chemical formula comprises the two known phosphates Ag 2 (V V O 2 )PO 4 ( x = 1; d = 6) and Ag 2 (V IV O)P 2 O 7 ( x = 2; d = 8) and one novel compound with an approximate composition Ag 2 V IV,V P 1.6 O 7+δ (0 ≤ δ ≤ 0.5). Among the prepared compounds, Ag 2 (V V O 2 )PO 4 shows the highest activity while Ag 2 (V IV O)P 2 O 7 is completely inactive. The novel phase Ag 2 V IV,V P 1.6 O 7+δ (0 ≤ δ ≤ 0.5) is the only compound with selectivity to maleic anhydride. A structure‐property relationship for the prepared catalysts is discussed.

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