Regenerating heavy metal catalysts for butynediol production

Details Regenerating heavy metal catalysts for butynediol production Regenerating heavy metal catalysts for butynediol production

1980-07-21

1983-06-14

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252416, 568855, B01J 3140, B01J 2394, C07C 33046, C07C 2900

Patent

active

043882161

ABSTRACT:
A process for regenerating suspended heavy metal catalysts used in the synthesis of butynediol from acetylene and formaldehyde. The aqueous catalytic slurry removed from the reaction mixture is raised to a temperature of about 200.degree. to 500.degree. C., where appropriate with air supplied, and is left at this temperature with air being supplied, until the carbon content of the catalytic substance is about 0.5 to 3%.

REFERENCES:
patent: 3920759 (1975-11-01), Hort
patent: 4119790 (1978-10-01), Hort

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