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Title: Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst

Abstract

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.

Inventors:
 [1];  [1]
  1. (Allentown, PA)
Issue Date:
Research Org.:
Air Products and Chemicals, Inc. (Allentown, PA)
OSTI Identifier:
871506
Patent Number(s):
5744636
Assignee:
Air Products and Chemicals, Inc. (Allentown, PA) NETL
DOE Contract Number:  
FC22-95PC93052
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; production; ethylidene; diacetate; dimethyl; heterogeneous; catalyst; relates; producing; reaction; acetic; acid; hydrogen; carbon; monoxide; elevated; temperatures; pressures; presence; alkyl; halide; bifunctional; stable; hydrogenation; comprises; insoluble; polymer; pendant; quaternized; heteroatoms; ionically; bonded; anionic; viii; metal; complexes; remainder; iodide; contrast; prior; processes; accelerator; promoter; achieve; catalytic; products; easily; separated; filtration; recycled; consecutive; runs; loss; activity; heterogeneous catalyst; acetic acid; viii metal; metal complexes; elevated temperatures; carbon monoxide; elevated temperature; catalytic reaction; easily separated; metal complex; soluble polymer; bifunctional catalyst; pendant quaternized; ethylidene diacetate; insoluble polymer; alkyl halide; ionically bonded; soluble poly; producing ethylidene; /999/

Citation Formats

Ramprasad, Dorai, and Waller, Francis Joseph. Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst. United States: N. p., 1998. Web.
Ramprasad, Dorai, & Waller, Francis Joseph. Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst. United States.
Ramprasad, Dorai, and Waller, Francis Joseph. Thu . "Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst". United States. https://www.osti.gov/servlets/purl/871506.
@article{osti_871506,
title = {Process for the production of ethylidene diacetate from dimethyl ether using a heterogeneous catalyst},
author = {Ramprasad, Dorai and Waller, Francis Joseph},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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