Oxidation catalyst and process utilizing the catalyst
US6333444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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: MO.sub.a W.sub.b Au.sub.c V.sub.d Nb.sub.e Y.sub.f (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.ltoreq.1; 0.ltoreq.b<1 and a+b=1; 10.sup.-5 <c.ltoreq.0.02; 0<d<2; 0<e.ltoreq.1; and 0.ltoreq.f.ltoreq.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.