Process for the selective hydrogenation of butyne-1,4-diol to bu

Details Process for the selective hydrogenation of butyne-1,4-diol to bu Process for the selective hydrogenation of butyne-1,4-diol to bu

1996-02-29

1998-03-17

Geist, Gary

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

Organic compounds

Oxygen containing

568861, 502314, C07C 2956

Patent

active

057289000

ABSTRACT:
Catalyst and process for the preparation of butene-2-diol-1,4 by the hydrogenation of butyne-2-diol-1,4 in aqueous solution over a palladium-containing fixed-bed catalyst, which is doped with lead or cadmium, in which a catalyst is used which has been made by applying Pd and Pb or Pd and Cd successively, by vapor deposition or sputtering, to a metal gauze or a metal foil acting as support material followed by forming the catalyst at an elevated temperature in air.

REFERENCES:
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patent: 4001344 (1977-01-01), Hoffmann et al.
patent: 4388479 (1983-06-01), Gryaznov et al.
patent: 4686202 (1987-08-01), Broecker
patent: 5063194 (1991-11-01), Broecker et al.
patent: 5521139 (1996-05-01), Brocker et al.

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