REACTIVITY AND CRYSTAL CHEMISTRY OF V-P-O PHASES RELATED TO C-4-HYDROCARBON CATALYTIC OXIDATION

Numerous crystalline phases are now identified in the V-P-O system, but owing to the complexity of the chemistry controversy still exists about the nature of the real active phase(s). The purpose here is to show that by knowing the reactivity of the individual solids, including the catalyst precursors, and their crystal chemistry, a better understanding of the catalytic system in the structure-sensitive oxidation of linear C-4-hydrocarbons is expected.