Preparation of (meth)acrolein and/or (meth)acrylic acid

Details Preparation of (meth)acrolein and/or (meth)acrylic acid Preparation of (meth)acrolein and/or (meth)acrylic acid

2006-03-21

2006-03-21

Zucker, Paul A. (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

C568S479000

Reexamination Certificate

active

07015354

ABSTRACT:
A process for preparing (meth)acrolein and/or (meth)acrylic acid by heterogeneously catalyzed gas phase partial oxidation of an organic precursor compound over a fresh fixed catalyst bed, in which the process is started up at a reduced hourly space velocity of charging gas mixture on the fixed catalyst bed.

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