Process for producing acrolein and acrylic acid

Details Process for producing acrolein and acrylic acid Process for producing acrolein and acrylic acid

1982-09-23

1989-06-06

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

502205, 502212, 502241, 502243, 502249, 562600, 568479, 568480, C07C 5125, C07C 57055, C07C 4722, C07C 4535

Patent

active

048373605

ABSTRACT:
Acrolein and acrylic acid are produced by vapor-phase catalytic oxidation of propylene in a multi-tubular, fixed-bed reaction vessel with the use of a composite oxide catalyst represented by the formula Mo.sub.a Bi.sub.b Fe.sub.c A.sub.d B.sub.e C.sub.f D.sub.g Si.sub.h O.sub.x, wherein A, B, C, and D represent components selectable from respective groups of elements, and the subscripts a through h and x are specific numbers of atoms of respective elements and groups of elements. This catalyst is adapted and packed in each reaction tube in a manner such that its activity is controlled to increase from the inlet toward the outlet of the tube.

REFERENCES:
patent: 3801634 (1974-04-01), Krabetz et al.
patent: 3970702 (1976-07-01), Shiraishi et al.

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