18739485. PROCESS FOR PRODUCING A CARBOXYLIC ACID OR SALT THEREOF BY ALKOXYCARBONYLATION OF DIISOBUTENE WITH PRECEDING DISTILLATION AND SUBSEQUENT HYDROLYSIS (Evonik Oxeno GmbH & Co. KG)

PROCESS FOR PRODUCING A CARBOXYLIC ACID OR SALT THEREOF BY ALKOXYCARBONYLATION OF DIISOBUTENE WITH PRECEDING DISTILLATION AND SUBSEQUENT HYDROLYSIS

Organization Name

Evonik Oxeno GmbH & Co. KG

Inventor(s)

Peter Kucmierczyk of Herne (DE)

Robert Franke of Marl (DE)

Anna Chiara Sale of Duesseldorf (DE)

Dirk Fridag of Haltern am See (DE)

Ana Markovic of Haltern am See (DE)

Armin Matthias Rix of Marl (DE)

[[:Category:Maren Term�hlen of Dortmund (DE)|Maren Term�hlen of Dortmund (DE)]][[Category:Maren Term�hlen of Dortmund (DE)]]

Laura-Selin Harding of Dorsten (DE)

Jan Benedikt Metternich of Recklinghausen (DE)

PROCESS FOR PRODUCING A CARBOXYLIC ACID OR SALT THEREOF BY ALKOXYCARBONYLATION OF DIISOBUTENE WITH PRECEDING DISTILLATION AND SUBSEQUENT HYDROLYSIS

This abstract first appeared for US patent application 18739485 titled 'PROCESS FOR PRODUCING A CARBOXYLIC ACID OR SALT THEREOF BY ALKOXYCARBONYLATION OF DIISOBUTENE WITH PRECEDING DISTILLATION AND SUBSEQUENT HYDROLYSIS

Original Abstract Submitted

A process produces a carboxylic acid or salt thereof by hydrolysis or saponification of an ester formed by alkoxycarbonylation of diisobutene. The diisobutene stream used in the alkoxycarbonylation is subjected to a distillation prior to the alkoxycarbonylation in order to enrich 2,4,4-trimethylpent-1-ene in the stream to be alkoxycarbonylated. The alkoxycarbonylation is carried out with an alcohol and carbon monoxide in the presence of a homogeneous catalyst system that comprises at least one metal from group 8 to 10 of the periodic table of the elements or a compound thereof, a phosphorus-containing ligand and an acid.