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US 8,772,551 B2Granted
Mixed oxide catalysts for catalytic gas phase oxidation
AssigneeEvonik Degussa GmbH
InventorsAchim Fischer, Weimin Lu, Christoph Weckbecker, Klaus Huthmacher
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Abstract
Disclosed herein are mixed oxide catalysts for the catalytic gas phase oxidation of alkanes, or mixtures of alkanes and olefins, for the production of aldehydes and carboxylic acids with air or oxygen in the presence of inert gases at elevated temperatures and pressure, and a method for the production of catalysts.
Claims26
A mixed oxide catalyst of the formula
- (MoAaBbCcDdEeFfGg)Ox (I)
- in which:
- A:
- bismuth,
- B:
- at least one of the elements comprising nickel and/or cobalt,
- C:
- at least one of the elements comprising Fe, Ce, Mn, Cr, V,
- D:
- at least one of the elements comprising W, P,
- E:
- at least one of the elements comprising Li, K, Na, Rb, Cs, Mg, Ca, Ba, Sr,
- F:
- at least one of the elements comprising Zn, Nb, Se, Te, Sm, Gd, Y, Pd, Pt, Ru, Ag, Au,
- G:
- at least one of the elements comprising Si, Al, Ti, Zr and
- a=0
- b=0-0.1
- c=0.005-0.1
- d=0.01-0.1
- e=0-1
- f=0.01-0.8
- g=0-800,
- x=number which is determined by the valency and frequency of the elements other than oxygen.
21 more elements
A mixed oxide catalyst of the formula
- (MoAaBbCcDdEeFfGg)Ox (I)
- in which:
- A:
- bismuth,
- B:
- at least one of the elements comprising nickel and/or cobalt,
- C:
- Cr
- D:
- P,
- E:
- at least one of the elements comprising Li, K, Na, Rb, Cs, Mg, Ca, Ba, Sr,
- F:
- Te,
- G:
- at least one of the elements comprising Si, Al, Ti, Zr, and
- a=0
- b=0-0.1
- c=0.005-0.1
- d=0.01-0.1
- e=0-1
- f=0.01-0.8
- g=0-800,
- x=number which is determined by the valency and frequency of the elements other than oxygen.
21 more elements
Dependencies are inferred from the claim text.