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US07015354B2 Preparation of (meth)acrolein and/or (meth)acrylic acid 失效
(甲基)丙烯醛和/或(甲基)丙烯酸的制备

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