Heterogeneous catalyst for the production of ethylidene diacetat

Details Heterogeneous catalyst for the production of ethylidene diacetat Heterogeneous catalyst for the production of ethylidene diacetat

1996-05-21

1998-06-16

Gerstl, Robert

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

Organic compounds

Carboxylic acid esters

C07C 6736

Patent

active

057673071

ABSTRACT:
This invention relates to a process for producing ethylidene diacetate by the reaction of acetic anhydride, acetic acid, hydrogen and carbon monoxide at elevated temperatures and pressures in the presence of an alkyl halide and a heterogeneous, bifunctional catalyst that is stable to hydrogenation and comprises an insoluble polymer having pendant quaternized heteroatoms, some of which heteroatoms are ionically bonded to anionic Group VIII metal complexes, the remainder of the heteroatoms being bonded to iodide. In contrast to prior art processes, no accelerator (promoter) is necessary to achieve the catalytic reaction and the products are easily separated from the catalyst by filtration. The catalyst can be recycled without loss in activity.

REFERENCES:
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patent: 5371275 (1994-12-01), Park et al.
Advanced Inorganic Chemistry, 5th Edition, p. 1272.
Jarrell and Gates, J. Catal., 40, 255 (1975).

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