Method for producing unsaturated aldehydes or unsaturated carboxylic acids

The catalyst packing method for fixed-bed reactors stabilizes yields of unsaturated aldehydes and carboxylic acids by optimizing temperature sensitivity and packing ratios, addressing yield instability and ensuring consistent production in industrial plants.

JP7876732B2Active Publication Date: 2026-06-19NIPPON KAYAKU CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NIPPON KAYAKU CO LTD
Filing Date
2024-10-25
Publication Date
2026-06-19

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Abstract

The present disclosure provides a method for producing an unsaturated aldehyde or an unsaturated carboxylic acid, said method for producing an unsaturated aldehyde or unsaturated carboxylic acid by partially oxidizing an alkene using a multi-tubular fixed-bed reactor, wherein the production parameter T satisfies formula (I). (I) T ≤ 20.5
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