Method for the production of acrylic acid by...

Details Method for the production of acrylic acid by... Method for the production of acrylic acid by...

2007-08-07

2007-08-07

Puttlitz, Karl (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

C562S546000, C562S547000

Reexamination Certificate

active

10490104

ABSTRACT:
Acrylic acid is prepared from propene by means of gas-phase oxidation by a process in which a starting gas mixture which contains propene and steam and whose molar propene/steam ratio is ≧1 and whose propane content is ≦5% is passed at elevated temperatures through a fixed catalyst bed comprising successive catalyst part-beds A and B, the part-bed A passed through first containing, as active material, a mixed oxide containing the elements Mo, Bi and Fe and the part-bed B containing, as active material, a mixed oxide containing the elements Mo and V, in a manner such that at least 96.5 mol % of propene are converted in a single pass through part-bed A.

REFERENCES:
patent: 3846336 (1974-11-01), Levy
patent: 4031135 (1977-06-01), Engelbach et al.
patent: 4147885 (1979-04-01), Shimizu et al.
patent: 6069271 (2000-05-01), Tanimoto et al.
patent: 6525217 (2003-02-01), Unverricht et al.
patent: 23 11 883 (1973-09-01), None
patent: 199 55 176 (2001-01-01), None
patent: 19955176 (2001-01-01), None
patent: 0 253 409 (1988-01-01), None
patent: 0 575 897 (1993-12-01), None
patent: 0 911 313 (1999-04-01), None
patent: 2000-053611 (2000-02-01), None
patent: 2000-169420 (2000-06-01), None

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