Method for producing isomeric hexanoic acids from the subsidiary flows arising during the production of pentanals

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United States of America Patent

PATENT NO 9517995
APP PUB NO 20160280625A1
SERIAL NO

15033709

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Abstract

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A process for preparing isomeric hexanoic acids comprising 2-methylpentanoic acid from the secondary streams obtained in the preparation of pentanals, characterized in that a) a mixture comprising linear butenes is reacted to give a pentanal mixture; b) the mixture obtained in step a) is separated into a stream enriched with 2-methylbutanal and 3-methyl-butanal, and a stream enriched with n-pentanal; c) the stream enriched with 2-methylbutanal and 3-methylbutanal of step b) is reacted with formaldehyde; d) the reaction mixture obtained after step c) is selectively reacted to give a mixture comprising 2-methylbutanal and isomeric hexanals; e) the reaction mixture is separated into a stream enriched with 2-methylbutanal and a stream enriched with a mixture of isomeric hexanals; and f) the mixture of isomeric hexanals obtained in step e) is oxidized to a mixture of isomeric hexanoic acids comprising 2-methylpentanoic acid.

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Patent OwnerAddress
OXEA GMBH46147 OBERHAUSEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Strutz, Heinz Moers, DE 71 219
Theuerkauf, Jens Krefeld, DE 4 0

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