Disclosed is a hydrocarboxylation process for the production of carboxylic acid from olefins wherein an olefin, water, a Group VIII metal hydrocarboxylation catalyst, an onium salt compound are combined in a reaction zone and contacted with carbon monoxide under hydrocarboxylation conditions of pressure and temperature The process does not require or utilize the addition of a hydrogen halide or an alkyl halide exogenous or extraneous to the hydrocarboxylation process.
[EN] PRODUCTION OF ACETIC ACID WITH ENHANCED CATALYST STABILITY<br/>[FR] PRODUCTION D'ACIDE ACÉTIQUE PRÉSENTANT UNE STABILITÉ DE CATALYSEUR ACCRUE
申请人:CELANESE INT CORP
公开号:WO2013090720A1
公开(公告)日:2013-06-20
Processes for the production of acetic acid by carbonylation of methanol and reactive derivatives thereof in a liquid phase reaction medium, wherein the reaction medium comprises a finite amount of water, a homogeneous catalyst, an alkyl halide promoter, and a catalyst stabilizer/co-promoter comprising a dissymmetric phosphonium cation.
Ylide-functionalised phosphanes for use in metal complexes and homogeneous catalysis
申请人:Umicore AG & Co. KG
公开号:US10940470B2
公开(公告)日:2021-03-09
The invention relates to ylide-functionalized phosphane ligands, the production of same and use in transition metal compounds, as well as the use of same as catalysts in organic reactions.