Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst
This invention relates to a process for producing ethylidene diacetate by the reaction of dimethyl ether, 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 for 3 consecutive runs without loss in activity.
- Research Organization:
- Air Products and Chemicals Inc
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC22-95PC93052
- Assignee:
- Air Products and Chemicals, Inc., Allentown, PA (United States)
- Patent Number(s):
- US 5,744,636/A/
- Application Number:
- PAN: 8-651,130
- OSTI ID:
- 645956
- Resource Relation:
- Other Information: PBD: 28 Apr 1998
- Country of Publication:
- United States
- Language:
- English
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Heterogeneous catalyst for the production of ethylidene diacetate from acetic anhydride
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