Catalyst and method of making same for oxidation of primary amin

Details Catalyst and method of making same for oxidation of primary amin Catalyst and method of making same for oxidation of primary amin

1985-09-27

1986-11-25

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

502254, 502323, B01J 2104, B01J 2106, B01J 2330, B01J 2718

Patent

active

046249397

ABSTRACT:
Improved processes for the conversion to oximes by selective oxidation, in the vapor phase, of saturated primary aliphatic or alicyclic amines having 2 to 12 carbon atoms especially cyclohexylamine to cyclohexanone oxime with elemental oxygen, in a reaction zone, in the presence of an effective amount of a catalyst comprising an oxygen-containing tungsten compound and alumina by (1) periodically regenerating the oxygen-containing tungsten catalyst by heating same at about 250.degree. C.-300.degree. C. in the presence of elemental oxygen, or (2) maintaining the temperature of the oxygen-containing tungsten catalyst in a range of about 100.degree. C.-145.degree. C. or (3) employing higher mol fractions of oxygen and of amine in a range of about 0.2-0.4 in the vapor phase are disclosed. An improved method of preparing an oxygen-containing tungsten on an alumina catalyst is also disclosed.

REFERENCES:
patent: 3900430 (1975-08-01), Beaty
patent: 3960954 (1976-06-01), Russell et al.
patent: 4145316 (1979-03-01), Robson

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