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

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

2007-05-08

2007-05-08

Barts, Samuel (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

C562S600000

Reexamination Certificate

active

11019160

ABSTRACT:
A process is proposed for preparing (meth)acrolein and/or (meth)acrylic acid by partially oxidizing C3and/or C4precursor compounds in the gas phase in the presence of a heterogeneous particulate catalyst, in a reactor having two or more thermoplates (1) arranged vertically and parallel to each other while in each case leaving a gap (2), the heterogeneous particulate catalyst being installed in the gaps (2) and the gaseous reaction mixture being passed through the gaps (2), which comprises monitoring, controlling and/or regulating the process by selecting as a monitoring, control and/or regulation parameter one or more temperatures which are measured in one or more gaps (2), at one or more measurement points which are distributed over the height of each gap (2).

REFERENCES:
patent: 10110847 (2002-09-01), None

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