Process for preparing aliphatic straight-chain and...

Details Process for preparing aliphatic straight-chain and... Process for preparing aliphatic straight-chain and...

2006-11-21

2006-11-21

Zucker, Paul A. (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

07138544

ABSTRACT:
The present invention relates to a process for preparing aliphatic straight-chain and β-alkyl-branched carboxylic acids by catalytic oxidation of aldehydes by means of oxygen or oxygen-containing gas mixtures. Alkali metal carboxylates or alkaline earth metal carboxylates or a mixture thereof in an amount, calculated as alkali metal or alkaline earth metal, of from 1 mmol each to from 10 mmol each per mole of aldehyde used and also metals or compounds of metals of groups 5 to 11 of the Periodic Table of the Elements in amounts of not more than 5 ppm, based on aldehyde used, are present as catalyst.

REFERENCES:
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patent: WO 01/66504 (2001-09-01), None
patent: 856962 (1960-12-01), None

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