| abstract |
This invention provides a process for preparing an improved selective oxidation catalyst consisting of a highly compressed mixture of metal oxides in which the atomic ratio of elements varies between about 0.3 and 2.4 atoms selected from phosphorus, manganese, germanium, zirconium, tin, tellurium, cerium and hafnium, and between about 0.4 and 3.6 atoms selected from titanium, vanadium, niobium, antimony and tantalum, per twelve atoms of molybdenum. |