Process for the production of carbonylation products

Details Process for the production of carbonylation products Process for the production of carbonylation products

2005-11-17

2010-11-30

Puttlitz, Karl J (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C562S519000

Reexamination Certificate

active

07842833

ABSTRACT:
A carbonylation process for the production of a carbonylation product such as a carboxylic acid and a carboxylic acid ester by contacting carbon monoxide with a feed comprising an alcohol such as methanol and/or a reactive derivative thereof such as methyl acetate in the vapor phase using a heterogeneous heteropolyacid catalyst which has been ion-exchanged or loaded with at least one metal selected from rhodium, iridium, copper and palladium and a Group IA metal selected from lithium, sodium, potassium and rubidium.

REFERENCES:
patent: 5218140 (1993-06-01), Wegman
patent: 5330955 (1994-07-01), Wegman
patent: 5917089 (1999-06-01), Howard
patent: 6387842 (2002-05-01), Wegman et al.
patent: 6521783 (2003-02-01), Wegman et al.

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