Process for producing acrylic acid from propylene

Details Process for producing acrylic acid from propylene Process for producing acrylic acid from propylene

1977-03-07

1979-04-03

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

260604R, 562546, 562600, C07C 5132, C07C 5704

Patent

active

041478851

ABSTRACT:
A process for producing acrylic acid from propylene through acrolein as an intermediate by catalytic vapor phase oxidation, which comprises passing a starting reactant gas mixture containing propylene, a molecular oxygen-containing gas and steam through a first-stage reactor packed with a molybdenum-containing multi-component catalyst, passing the resulting acrolein-containing gas through a second-stage reactor packed with a multi-component catalyst containing vanadium and molybdenum, introducing the resulting acrylic acid-containing gas to an acrylic acid collector thereby to recover acrylic acid in the form of an aqueous solution, and incorporating a part of the exhaust gas from the collector in the starting reactant gas mixture.

REFERENCES:
patent: 4031135 (1977-06-01), Engelbach

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