Hydrogenolysis process for the production of monoethylene glycol

Details Hydrogenolysis process for the production of monoethylene glycol Hydrogenolysis process for the production of monoethylene glycol

1985-05-21

1987-04-28

Mars, Howard T.

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

Organic compounds

Oxygen containing

568866, 568903, 568907, C07C 4101, C07C 3108, C07C 3120

Patent

active

046616438

ABSTRACT:
This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating the polyalkylene glycol with molecular hydrogen in the presence of a hydrogenation catalyst containing ruthenium to produce at least one of monoethylene glycol monomethyl ether, monoethylene glycol and ethanol. The production rate of each of said monoethylene glycol monomethyl ether, monoethylene glycol and ethanol is at least about 10 moles/kilogram ruthenium/hour.

REFERENCES:
patent: 1953548 (1934-04-01), Young et al.
patent: 2497812 (1950-02-01), Copelin
patent: 2658081 (1953-11-01), Emerson et al.
patent: 2768978 (1956-10-01), Robertson
patent: 3833634 (1974-09-01), Pruett et al.
patent: 3975449 (1976-08-01), Suzuki
patent: 4088700 (1978-05-01), Watts
patent: 4091041 (1978-05-01), Smith
Davidova and Kraus Journal of Catalysis, 61, 1-6 (1980).

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