Process of prolonging the life of ester hydrogenation catalyst

Details Process of prolonging the life of ester hydrogenation catalyst Process of prolonging the life of ester hydrogenation catalyst

1980-03-24

1982-12-28

Evans, Joseph E.

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

Organic compounds

Oxygen containing

C07C 3120

Patent

active

043663338

ABSTRACT:
The life of the hydrogenation catalyst in reducing a mixture of glycolate ester to ethylene glycol can be extended by lowering the polyglycolide ester content of the mixture by transesterification, that is, heating in the presence of alcohol, after which the resulting mixture is hydrogenated.

REFERENCES:
patent: 2285448 (1942-06-01), Loder
patent: 4087470 (1978-05-01), Suzuki

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