Method for the prepartion of vanadium-antimony-oxide based oxidation and ammoxidation catalysts using non-aqueous media
OwnerJames F. Brazdilinventor
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Abstract
Vanadium antimony oxide catalysts useful for the selective oxidation and ammoxidation of paraffins, olefins, and aromatic compounds are manufactured in a process comprising (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises an organic solvent, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove water and organic solvent.
Claims18
A process for the preparation of a vanadium antimony oxide catalyst comprising vanadium, antimony, at least one of tin, titanium, iron, chromium and gallium, and optionally at least one element selected from the group consisting of lithium, magnesium, sodium, calcium, strontium, barium, cobalt, nickel, zinc, germanium, niobium, zirconium, molybdenum, tungsten, copper, tellurium, tantalum, selenium, bismuth, cerium, indium, arsenic, boron, aluminum, and manganese, wherein the relative ratios of these elements are represented by the following general formula:
- V1SbmAaDdOx
- wherein A is at least one of Ti, Sn, Fe, Cr, and Ga.
- D when present is at least one of Li, Mg, Ca, Sr, Ba, Co, Ni, Zn, Ge, Nb, Zr, Mo, W, Cu, Te, Ta, Se, Bi, Ce, In, As, B, and Mn,
- m is between about 0.5 to about 10
- a is between about 0 to about 10
- d is 0 to about 10, and
- x is determined by the oxidation state of the cations present,
- wherein the process comprises (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises an organic solvent, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove water and organic solvent.
A vanadium antimony oxide catalyst comprising vanadium, antimony, at least one of tin, titanium, iron, chromium and gallium, and optionally at least one element selected from the group consisting of lithium, magnesium, sodium, calcium, strontium, barium, cobalt, nickel, zinc, germanium, niobium, zirconium, molybdenum, tungsten, copper, tellurium, tantalum, selenium, bismuth, cerium, indium, arsenic, boron, aluminum, and manganese, wherein the relative ratios of these elements are represented by the following general formula:
- V1SbmAaDdOx
- wherein A when present is at least one of Ti and Sn,
- D when present is at least one of Li, Mg, Ca, Sr, Ba, Co, Fe, Cr, Ga Ni, Zn, Ge, Nb, Zr, Mo, W, Cu, Te, Ta, Se, Bi, Ce, In, As, B, Al, and Mn,
- m is between about 0.5 to about 10,
- a is between 0 to about 10,
- d is 0 to about 10, and
- x is determined by the oxidation state of the cations present,
- wherein the catalyst is produced in a process comprising (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises an organic solvent, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove water and organic solvent.
A process for the manufacture of acrylonitrile from a hydrocarbon selected from the group consisting of propylene, propane and mixtures thereof comprising reacting the hydrocarbon with ammonia and oxygen in the presence of a vanadium antimony oxide catalyst comprising vanadium, antimony, iron, at least one of tin, titanium, chromium and gallium, and at least one other promoter element selected from the group consisting of lithium, magnesium, sodium, calcium, strontium, barium, cobalt, chromium, gallium, nickel, zinc, germanium, zirconium, tantalum, bismuth, cerium, indium, boron, aluminum, and manganese, optionally one or more of molybdenum, tungsten and niobium, and optionally one or more of arsenic, tellurium and selenium, wherein the relative proportions of these elements are represented by the following formula:
- V1SbmAaDdOx
- wherein A when present is at least one of Ti and Sn,
- D when present is at least one of Li, Mg, Ca, Sr, Ba, Co, Fe, Cr, Ga Ni, Zn, Ge, Nb, Zr, Mo, W, Cu, Te, Ta, Se, Bi, Ce, In, As, B, Al and Mn,
- m is between about 0.5 to about 10,
- a is between 0 to about 10,
- d is 0 to about 10, and
- x is determined by the oxidation state of the cations present,
- wherein the catalyst is produced in a process comprising (i) forming a catalyst precursor slurry comprising a vanadium containing compound and an antimony containing compound in a liquid solvent medium which comprises an organic solvent, and (ii) recovering a vanadium antimony oxide from the slurry by drying the slurry in order to remove water and organic solvent.
Dependencies are inferred from the claim text.