Abstract: The invention relates to a process for preparing an ester by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation and recycled into the reaction zone. In a development of the present invention, the ester thus formed is converted into another ester by transesterification.

Abstract: Ru-catalysed domino hydroformylation/hydrogenation/esterification using imidazole ligands.

Abstract: Process for alkoxycarbonylation of ethylenically unsaturated compounds using benzene-based diphosphine ligands and aluminium triflate.

Abstract: Ru-catalysed domino hydroformylation/hydrogenation/esterification using phosphine ligands.

Abstract: The present invention provides a process for preparing aldehydes from C2 to C20 olefins using a subsequent membrane separation to separate the homogeneously dissolved catalyst system, wherein prior to the membrane separation a gas exchange that increases the partial pressure fraction of carbon monoxide or hydrogen is carried out in order to boost catalyst retention by the membrane.

Abstract: The invention relates to a process for preparing carboxylic acids or salts thereof by hydrolysis or saponification of an ester, which is obtained by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation. In a development of the present invention, the ester thus formed is converted into another ester by transesterification and then hydrolyzed or saponified.

Abstract: The invention relates to a process for preparing an ester by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation and recycled into the reaction zone. In a development of the present invention, the ester thus formed is converted into another ester by transesterification.

Abstract: The invention relates to a process for preparing carboxylic acids or salts thereof by hydrolysis or saponification of an ester, which is obtained by alkoxycarbonylation of a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation. In a development of the present invention, the ester thus formed is converted into another ester by transesterification and then hydrolyzed or saponified.

Abstract: The invention relates to a process for separating one or more components from a mixture by a membrane separation in which—depending on the component to be separated—an acid or a base is added to the mixture before the membrane separation.

Abstract: The invention provides a process for preparing an alcohol by hydrogenating an ester which is obtained by alkoxycarbonylating a C2 to C20 hydrocarbon having at least one multiple bond, preferably having at least one olefinic double bond, in which the homogeneous catalyst system used is separated from the product mixture by means of membrane separation. In a development of the present invention, the ester thus formed is converted to another ester by transesterification and then hydrogenated.

Abstract: Process for the direct conversion of alkenes to carboxylic acids.

Abstract: Process for the direct conversion of diisobutene to a carboxylic acid.

Abstract: Process for Pd-catalyzed hydroxycarbonylation of diisobutene:acetic acid/diisobutene ratio.

Abstract: Process for Pd-catalyzed hydroxycarbonylation of diisobutene:ligand/Pd ratio.

Abstract: Process for Pd-catalyzed hydroxycarbonylation of diisobutene:sulfuric acid/ligand ratio.

Abstract: A process for Pd-catalyzed hydroxycarbonylation of diisobutene in an acetic acid solvent in the presence of a ligand having the following structure: In contrast to reaction solvents such as formic acid or 3,5,5 hexanoic acid the conversion rates were improved and greater than 90% at a reaction temperature of 120° C. and CO pressure of 40 bar.

Abstract: Process for Pd-catalyzed hydroxycarbonylation of diisobutene: ratio of 3,5,5-trimethylhexanoic acid/H2O.

Abstract: Process for Pd-catalyzed hydroxycarbonylation of diisobutene:acetic acid/diisobutene ratio.

Abstract: Process for the direct conversion of diisobutene to a carboxylic acid.

Abstract: Process for Pd-catalyzed hydroxycarbonylation of diisobutene:sulfuric acid/ligand ratio.