Ethane oxidation catalyst and process utilising the catalyst

Details Ethane oxidation catalyst and process utilising the catalyst Ethane oxidation catalyst and process utilising the catalyst

2008-05-06

2008-05-06

Puttlitz, Karl (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

C562S549000

Reexamination Certificate

active

10491287

ABSTRACT:
A catalyst composition and its use for the selective oxidation of ethane to acetic acid and/or for the selective oxidation of ethylene to acetic acid. The composition includes in combination with oxygen the elements molybdenum, vanadium, niobium, gold in the absence of palladium according to the empirical formula MoaWbAucVdNbeZf, wherein Z is one or more elements selected from B, Al, Ga, In, Ge, Sn, Pb, Sb, Cu, Pt, Ag, Fe and Re, and 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; 10−5φc≦0.02; 0<d≦2; 0<e≦1; and 0.0001≦f≦0.05.

REFERENCES:
patent: 6333444 (2001-12-01), Ellis et al.
patent: 1 043 064 (2000-10-01), None
patent: 1043064 (2000-10-01), None
patent: 1 192 987 (2002-04-01), None
patent: WO 99/51339 (1999-10-01), None

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