ISSN:
1572-879X
Keywords:
Iridium catalyst
;
supported catalyst
;
vapor-phase carbonylation
;
methanol carbonylation
;
active carbon support
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Iridium on active carbon (Ir/A.C.) is an effective catalyst for the vapor-phase carbonylation of methanol. In contrast to rhodium-catalysts the reaction rate is nearly independent of the partial pressure of the methyl iodide promoter and the methanolysis of an iridium-acetyl species has been found to determine the rate. Undesired methane formation accompanying the carbonylation is suggested to proceed via proteolysis of iridium-methyl species by methanol or water. Methyl chloride has been found to be a less effective promoter than methyl iodide.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00771761
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