Preparation of acrolein, acrylic acid or a mixture thereof from

Details Preparation of acrolein, acrylic acid or a mixture thereof from Preparation of acrolein, acrylic acid or a mixture thereof from

1996-03-08

1998-01-06

McKane, Joseph

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

Organic compounds

Carboxylic acids and salts thereof

562546, 562547, 568476, C07C 5116

Patent

active

057056846

ABSTRACT:
In a process for preparing acrolein, acrylic acid or a mixture thereof from propane, propane is partially dehydrogenated to propylene in a first stage, the product gas mixture resulting therefrom is, after separating off hydrogen and water vapor, used as feed to an oxidation reactor, the propylene formed in the dehydrogenation is partially oxidized in the oxidation reactor using molecular oxygen in the presence of non-dehydrogenated propane as inert diluent gas to give acrolein, acrylic acid or a mixture thereof and the propane present in the product gas mixture of the partial oxidation is subsequently recirculated to the dehydrogenation stage A.

REFERENCES:
patent: 3865873 (1975-02-01), Oda et al.
patent: 5198578 (1993-03-01), Etzhorn et al.
patent: 5218146 (1993-06-01), Takata et al.
patent: 5262547 (1993-11-01), Ramachandran et al.
patent: 5466837 (1995-11-01), Ramachandran et al.

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