Solid acid catalyst of acid-treated hydrated niobium oxide and m

Details Solid acid catalyst of acid-treated hydrated niobium oxide and m Solid acid catalyst of acid-treated hydrated niobium oxide and m

1985-08-21

1987-03-24

Metz, Andrew H.

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

Catalyst or precursor therefor

Phosphorus or compound containing same

B01J 2714

Patent

active

046525440

ABSTRACT:
A solid state catalyst consists essentially of hydrated niobium oxide containing a phosphoric acid on its surface in an amount sufficient to increase surface acidity, to inhibit crystallization of the niobium oxide and to retard loss in catalytic activity following exposure to high temperature. The catalyst can be prepared by treating hydrated niobium oxide (Nb.sub.2 O.sub.5.xH.sub.2 O) or an anhydride thereof with a phosphoric acid. The catalyst is useful in the hydration of ethylene to form ethanol.

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Chemical Abstracts, 97:227,7384, p. 796, Thermal Field Stability . . . , Palatnik et al.
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Chemical Abstracts, 94:204,722N, p. 246, Metallic Acids . . . , Rao.
Chemical Abstracts, 99:46924b, p. 551, Intercolation into Niobium Oxide Phosphate . . . , Bereke et al.

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