Carbonylation reaction catalysts
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorRichard W. Wegman
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Abstract
A process and novel catalyst for the carbonylation of one or more of alcohols, ethers and ether alcohols to esters and, optionally, to carboxylic acids. The reaction is effected in the vapor state over a solid catalyst comprising a polyoxometalate anion in which the metal is at least one taken from Group V and VI of the Periodic Chart of the Elements complexed with a cation from a member of Group VIIIA of the Periodic Chart of the Elements. Preferably, the catalyst is deposited on a support that is inert to the reaction. The preferred support is silica.
Claims12
A solid catalyst for the carbonylation of one or more alcohols, ethers, and ether alcohols to esters and, optionally, to carboxylic acids, by reaction thereof in the vapor state, said catalyst having the formula M[W.sub.12 PO.sub.40 ] in which M is a metal selected from the group consisting of Ir, Rh, Fe and Th.
A solid catalyst for the carbonylation of one or more alcohols, ethers, and ether alcohols to esters and, optionally, to carboxylic acids, by reaction thereof in the vapor state, said catalyst having the formula H[MW.sub.12 PO.sub.40 ] in which M is a metal selected from the group consisting of Pd, Mn, Co, Ni and Zn.
A solid catalyst for the carbonylation of one or more alcohols, ethers, and ether alcohols to esters and, optionally, to carboxylic acids, by reaction thereof in the vapor state, said catalyst having the formula Na.sub.8 [Rh.sub.2 W.sub.12 O.sub.42 ].
A solid catalyst for the carbonylation of one or more alcohols, ethers, and ether alcohols to esters and, optionally, to carboxylic acids, by reaction thereof in the vapor state, said catalyst having the formula RhW.sub.x Mo.sub.y PO.sub.40, wherein x and y are the following combinations:
- ______________________________________ x y ______________________________________ 8 4 6 6 4 8 2 10. ______________________________________
A solid catalyst for the carbonylation of one or more alcohols, ethers, and ether alcohols to esters and, optionally, to carboxylic acids, by reaction thereof in the vapor state, said catalyst having the formula Ir-Pd[W.sub.12 PO.sub.40 ].
A solid catalyst for the carbonylation of one or more alcohols, ethers, and ether alcohols to esters and, optionally, to carboxylic acids, by reaction thereof in the vapor state, said catalyst having the formula Rh-Pd[W.sub.12 PO.sub.40 ].
Dependencies are inferred from the claim text.