A process for producing isomerized olefins, branched aldehydes, branched alcohols, branched surfactants and other branched derivatives through isomerization, hydroformylation, hydrogenation, surfactant forming reactions and other derivative forming reactions.

The present invention relates to methods of controlling hydroformylation processes for producing normal (N) and iso (I) aldehydes at a N:I ratio. In one aspect, a method of controlling a hydroformylation process comprises contacting an olefin with carbon monoxide, hydrogen and a catalyst, the catalyst comprising (A) a transition metal, (B) a monophosphine, and (C) a tetraphosphine having the structure described herein, the contacting conducted in one or more reaction zones and at hydroformylation conditions to produce a blend of normal (N) and iso (I) aldehydes at a N:I ratio, the method comprising at least one of increasing the N:I ratio by adding additional tetraphosphine to a reaction zone; decreasing the N:I ratio by adding additional monophosphine to a reaction zone; or increasing the N:I ratio by volatilization of the free monophosphine.

The present invention relates to a process for producing specific α,β-unsaturated carboxylates.

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

The present invention relates to a process for producing alcohols by hydrogenation of C4 to C20 aldehydes. The process according to the invention is performed in two consecutive hydrogenation stages, wherein the first hydrogenation stage employs an activated metal catalyst based on a nickel metal foam and the second stage employs a supported catalyst containing a catalytically active component from the group consisting of nickel, copper, chromium and mixtures thereof.

A process for producing isomerized olefins, branched aldehydes, branched alcohols and branched surfactants through isomerization, hydroformylation, hydrogenation and surfactant forming reactions.

Diphosphites having an open, 2,4-methylated outer unit and use thereof in hydroformylation.

Process for hydroformylation of olefins using Pt and iodine or bromine.

Embodiments of the present invention relate to processes to prepare a spent catalyst fluid from a hydroformylation process for precious metal recovery. In one embodiment, a process comprises (a) removing a spent catalyst fluid from an active hydroformylation reaction system, wherein the spent catalyst fluid comprises the hydroformylation reaction catalyst and is substantially free of non-hydrolyzable triorganophosphorous compounds; and (b) adding a non-hydrolyzable triorganophosphorous compound to the spent catalyst fluid from step (a) prior to storing the fluid or prior to shipping for precious metal recovery.

A process can be used for preparing aldehydes from C2 to C20 olefins with a subsequent thermal separation for removal of the aldehyde formed. The process involves a membrane separation, which is preceded by performance of a gas exchange by which the proportion of the partial pressure represented by carbon monoxide or hydrogen is increased in order to reduce catalyst losses.