FIELD: chemistry.
SUBSTANCE: description is given of a catalyst composition and its use for selective oxidation of ethane to acetic acid and/or for selective oxidation of ethylene to acetic acid, where the said composition combined with oxygen contains molybdenum, vanadium, niobium, gold in the absence of palladium in accordance with the empirical formula: MoaWbAucVdNbeZf, in which Z denotes one or more elements selected from a group comprising Sn, Ag, Fe and Re; a, b, c, d, e and f denote gram-atomic ratios of elements for which 0<a<1; 0<b<1 and a+b=1; 10-5<c≤0.02; 0<d≤2; 0<e≤1 and 0.0001≤f≤0.05. A method is described for synthesis of acetic acid from a gaseous mixture containing ethane and/or ethylene, involving bringing the gaseous mixture into contact with a gas containing molecular oxygen at high temperature in the presence of the catalyst composition described above.
EFFECT: increased selectivity with respect to acetic acid combined with reduced selectivity with respect to ethylene.
13 cl, 1 tbl, 9 ex
Title | Year | Author | Number |
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|
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Authors
Dates
2010-04-27—Published
2002-09-04—Filed