Method for producing silica-supported catalyst, and method for producing unsaturated carboxylic acid or unsaturated nitrile

摘要

To produce a silica-supported catalyst having an excellent yield of a target product and excellent catalyst attrition resistance.;A method for producing a silica-supported catalyst comprising Mo, V, Nb, and a component X (Sb and/or Te) to be used in a vapor phase catalytic oxidation or ammoxidation of propane, comprising the steps of:
(I) preparing a raw material mixture solution by mixing Mo, V, Nb, component X, a silica sol, and water;(II) obtaining a dry powder by drying the raw material mixture solution; and(III) obtaining a silica-supported catalyst by calcining the dry powder, wherein the silica sol contains 10 to 270 wt ppm of nitrate ions based on SiO2.

主权项

1. A method for producing a silica-supported catalyst comprising Mo, V, Nb, and a component X (Sb and/or Te) to be used in a vapor phase catalytic oxidation or ammoxidation of propane, comprising the steps of:
(I) preparing a raw material mixture solution by mixing Mo, V, Nb, component X, a silica sol, and water; (II) drying the raw material mixture solution to obtain a dry powder; and (III) calcining the dry powder, wherein the silica sol contains 10 to 270 wt ppm of nitrate ions based on SiO2, to obtain a silica-supported catalyst.