Catalyst suspension foaming inhibition

Details Catalyst suspension foaming inhibition Catalyst suspension foaming inhibition

1974-12-19

1976-08-03

Curtis, Allen B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260690, C07B 100

Patent

active

039729400

ABSTRACT:
A process in which a Raney nickel or Raney cobalt hydrogenation catalyst is suspended in an aqueous liquid for feeding of the catalyst into a reaction medium in which an amine is prepared by continuous catalytic hydrogenation of a nitrile reactant is improved by including in the aqueous liquid a portion of the reaction medium containing an amount of the amine sufficient to substantially inhibit foaming of the catalyst suspension.

REFERENCES:
patent: 3551495 (1970-12-01), Alt et al.
patent: 3673251 (1972-06-01), Frampton et al.
patent: 3859329 (1975-01-01), Lambert et al.
Perry, "Chem. Engr. Handbook," p. 515, 3rd Ed. 1950.

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