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Catalysts based on silver vanadium phosphates with a general chemical formula Ag2VPxOd (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 Ag2(VVO2)PO4 (x = 1; d = 6) and Ag2(VIVO)P2O7 (x = 2; d = 8) and one novel compound with an approximate composition Ag2VIV,VP1.6O7+δ (0 ≤ δ ≤ 0.5). Among the prepared...
A total of 29 hitherto unknown vanadyl(IV)‐, vanadyl(V)‐, and vanadate(V) phosphates were synthesized, structurally characterized, and tested in terms of their behavior as catalysts in the selective oxidation of n‐butane to maleic anhydride. The new materials did not surpass the performance of commercially used (VIVO)2P2O7‐based catalysts, but a silver vanadium phosphate of approximate composition...
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