Oxidation catalyst and process utilizing the catalyst
AssigneeBP Chemicals Limited
InventorsBrian Ellis, Michael David Jones
Life of this patent
Estimating the term…
Abstract
A catalyst composition and its use for the oxidation of ethane to ethylene and/or acetic acid and/or for the oxidation of ethylene to acetic acid which comprises in combination with oxygen the elements molybdenum, vanadium, niobium and gold in the absence of palladium according to the empirical formula: MOaWbAucVdNbeYf (I) wherein Y is one or more elements selected from the group consisting of: Cr, Mn, Ta, Ti, B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Rh, Ir, Cu, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, Tl, U, Re, Te, La and Pd; a, b, c, d, e and f represent the gram atom ratios of the elements such that: 0<a≦1; 0≦b<1 and a+b=1; 10−5<c≦0.02; 0<d<2; 0<e≦1; and 0≦f≦2.
Claims13
A catalyst composition comprising in combination with oxygen the elements molybdenum, vanadium, niobium and gold in the absence of palladium according to the empirical formula:
- mOaWbAucVdNbeYf (I) wherein Y is one or more elements selected from the group consisting of:
- Cr, Mn, Ta, Ti, B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Rh, Ir, Cu, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, Tl, U, Re, Te and La;
- a, b, c, d, e and f represent the gram atom ratios of the elements such that:
- 0<a≦1;
- 0≦b<1 and a+b=1;
- 10−5<c≦0.02;
- 0<d≦2;
- 0≦e≦1;
- and
- 0<f≦2.
A process for the oxidation of ethane to ethylene and/or acetic acid and/or for the oxidation of ethylene to acetic acid which process comprises contacting a gaseous mixture comprising ethane and/or ethylene with a molecular oxygen-containing gas at elevated temperature in the presence of a catalyst composition as claimed in any preceding claim.
Dependencies are inferred from the claim text.