Method of making catalyst and catalyst precursor containing vana

Details Method of making catalyst and catalyst precursor containing vana Method of making catalyst and catalyst precursor containing vana

1988-11-14

1989-11-07

Shine, W. J.

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

Forming or treating a sphere, process only

502353, B01J 2318, B01J 2322, B01J 3508

Patent

active

048792640

ABSTRACT:
Disclosed is a method of making a catalyst precursor by aging an aqueous solution containing the monoperoxovanadium ion, VO(O.sub.2).sup.+, until a vanadium-containing sol or gel is formed, and reacting said vanadium while in said aqueous sol or gel form, with an antimony compound that contains Sb having a valence of 3. In one embodiment, the VO(O.sub.2).sup.+ ion is made by reacting H.sub.2 O.sub.2 with a vanadium compound.
Also disclosed is making a catalyst by drying and calcining such precursor. When the drying is effected by spray drying a microspheroidal catalyst is produced. The catalysts useful for ammoxidation of propane are more attrition resitant than catalysts of the same empirical formula made by prior art methods.

REFERENCES:
patent: 3860534 (1975-01-01), Harris et al.
patent: 3984353 (1976-10-01), Sergunkin et al.
patent: 4746641 (1988-05-01), Guttmann et al.

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