Method for production of acrylic acid

Details Method for production of acrylic acid Method for production of acrylic acid

B - Operations, Transporting

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252/53, 260/521.

B01J 23/72 (2006.01) B01J 23/885 (2006.01) B01J 23/887 (2006.01) B01J 23/888 (2006.01) C07C 51/25 (2006.01) C07C 57/055 (2006.01)

Patent

CA 2029277

ABSTRACT OF THE DISCLOSURE A method for the production of acrylic acid by the vapor-phase oxidation of acrolein with a molecular oxygen- containing gas in the presence of a catalyst formed of an oxide or a composite oxide of a metal element composition represented by the following formula I: MoaVbWcWudXeYf (I) wherein X is at least one element selected from the group consisting of Zr, Ti and Ce, T is at least one element selected from the group consisting of Mg, Ca, Sr and Ba, and the subscripts a, b, c, d, e, and f are such that b = t to 14, 0<c?12, 0<d?6, 0<e?10, and f = 0 to 3 where a is fixed at 12, 2.0<Cu+X?10.0 and 0.25?Cu/X?6Ø

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