Hydroformylation process

• Main Authors: HENDRIK DIRKZWAGER, FREDERICUS JACOBUS MARIA KERKHOF, FREDERIK HENDRIK VAN DER STEEN
• Format: Patent
• Language: English
• Published: 28.01.2009
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

A process for hydroformylation of vinylidene olefins, such as C16 vinylidene olefins, comprises of contacting the olefins with carbon monoxide and hydrogen in the presence of a catalyst system. The catalyst system comprises of a source of platinum group metal cations, such as platinum or palladium; a source of anions, other than halide anions, such as acids having a pKa value of less than 3, measured at 18{C in aqueous solution, such as anions of phosphoric acid, sulphuric acid, sulphonic acid and trifluoroacetic acid; and a source of bidentate ligands of the formula (I), R1R2M1RM2R3R4 (I). In formula (I), M1 and M2 is independently a phosphorous, arsenic or antimony, R is a bivalent organic bridging group containing 1-4 atoms in the bridge, such as an ethylene group, R1 and R2 is independently a substituted or unsubstituted hydrocarbyl group or together is a bivalent substituted or non-substituted cyclic group where the two free valencies are linked to M1, and R3 and R4 is a substituted or non-substituted hydrocarbyl group, or together is a bivalent substituted or non-substituted cyclic group where the two free valencies are linked to M2. The hydroformylation process is used for producing one or more primary alcohols comprising a carbon chain which is split into two branches at the C3 position.