Molybdenum based oxidation catalysts

Details Molybdenum based oxidation catalysts Molybdenum based oxidation catalysts

2005-01-11

2005-01-11

Dentz, Bernard (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06841686

ABSTRACT:
This invention concerns catalysts comprising a molybdenum compound of formula I, II, III, IV or Vin-line-formulae description="In-line Formulae" end="lead"?VqMoAyOz  Iin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?NiMoxByOz′  IIin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?VNiwMoxCy′Oz″  IIIin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?CoNiwMoxDyOz′″  IVin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?VNiwCorMoxEyOz″″  Vin-line-formulae description="In-line Formulae" end="tail"?wherein: A is at least one cation selected from the group consisting of cations of: Cr, Sb, Co, Ce and Pb; B is at least one cation selected from the group consisting of cations of: Sb, Al and W; C is at least one cation selected from the group consisting of cations of: Fe, Zn, Al, Sb, Bi, W, Li, Ba, Nb and Sn; D is at least one cation selected from the group consisting of cations of: Ba, Mn, Al, Sb, Sn, and W; E is at least one cation selected from the group consisting of cations of: Fe, Ca, Mn, Sr, Eu, La, Zr, Ga, Sn and Pb; q, r, w, x and y are each independently a number from 0.1 to 10 and y′ is a number from 0 to 10, z, z′, z″, z′″, and z″″ are determined using the amounts and oxidation states of all cations present in each formula. These catalysts can be used in C4oxidation processes, especially butane oxidation processes.

REFERENCES:
patent: 2625519 (1953-01-01), Hartig

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