Niobium or tantalum catalysts for the preparation of ethylenimin

Details Niobium or tantalum catalysts for the preparation of ethylenimin Niobium or tantalum catalysts for the preparation of ethylenimin

1981-07-09

1983-03-15

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

544410, 564463, 568487, C07D 20302, C07D24112, C07B 300, C07B 502

Patent

active

043767320

ABSTRACT:
An improved catalyst suitable for the dehydration of an alkanolamine in the vapor phase to produce an alkylenimine which catalyst contains an oxide of niobium or tantalum. Optionally an alkaline earth oxide is employed as a promoter. The catalyst is generally used on an inert low surface area support at a concentration of less than 5% of the tantalum or niobium oxide and less than 0.5% of the promoter oxide.

REFERENCES:
patent: 2441966 (1948-05-01), Hale
patent: 2694704 (1954-11-01), Gassenmeier
patent: 3717628 (1973-02-01), Rowe, Jr.
Gorin, Chem. Abs. 59, 7336a (1962).
Agawa, Chem. Abs. 83, 163983a (1975).

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