| abstract |
The present invention relates to one kind to be used for isobutene/tert-butyl alcohol gaseous oxidation synthesizing methyl methacrylaldehyde eggshell type O composite metallic oxide catalyst.Ball type carrier and binder are added in catalyst preparation process, so that metal salt reacts on ball type carrier surface and is attached to its surface, is removed portion of binder by roasting, to obtain eggshell type O composite metallic oxide catalyst.Catalyst preparation process provided by the invention is simple, low in cost, has excellent catalytic properties in isobutene/tert-butyl alcohol gaseous oxidation synthesizing methyl acrolein reaction, long catalytic life, is suitable for industrialization. |