Method for preparing a catalyst for the dehydration of an alkano

Details Method for preparing a catalyst for the dehydration of an alkano Method for preparing a catalyst for the dehydration of an alkano

1983-01-14

1984-10-16

Dees, Carl F.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502246, 502354, B01J 2320

Patent

active

044775911

ABSTRACT:
A catalyst useful for dehydrating an alkanolamine to form an alkylenimine is prepared by providing an aqueous or hydrofluoric acid solution of a tantalum or niobium compound, neutralizing this solution with ammonium hydroxide to precipitate the metal hydroxide, washing the precipitated metal hydroxide with water and subsequently dissolving it in an aqueous solution of a lower carboxylic acid, e.g. oxalic acid, applying the acid solution to a catalyst support to impregnate it with the metal hydroxide and finally drying and calcining the impregnated support to form the desired metal oxide catalyst. An alkaline earth metal oxide is optionally employed by impregnating the support with an aqueous solution of the alkaline earth metal hydroxide, preferably prior to the application of the catalyst.

REFERENCES:
patent: 2217010 (1940-10-01), Grosse et al.
patent: 3342847 (1967-09-01), Kruse
patent: 4131643 (1978-12-01), Utsunomiya et al.
patent: 4337175 (1982-06-01), Ramirez

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