Multimetais oxide, use of the same, pre catalyst, and processes for preparing oxide multimetais, and catalysts for the partial oxidation in gaseous phase of aromatic hydrocarbons.

摘要

u00cbxido of multimetais, use of the same, pre catalyst, and processes for preparing oxide multimetais, and catalysts for the partial oxidation in gaseous phase of aromatic hydrocarbons. The invention relates to a new multimetais oxide with the general formula Ag ~ - C ~ Q ~ B ~ m ~ C ~ V ~ 12 ~ ~ ~ d ~.Hey ~ 2 ~ (I), where a is a value ranging from 3 to 10, q is an element selected from P, as, Sb, and / or Bi, B is a value of 0.2 to 3, M is a metal, C is a value from 0 to 3, with the condition of (a - C) 242 0,1, D is a number determined in accordance with the Valencia and frequency of different features Bands of oxygen in formula (I), and a value of 0 to 20.Where the said oxide is in a form of realization in the form of a crystalline structure whose difratograma X-ray powder is characterized by the fact that the reflections of the diffraction data for differences of network selected is equal to at least 5 for d = 7, 13, 5.52; 5,14; 3,57; 3.25 ; 2.83; 2.79; 2.73; 2.23 and 1.71 (u00b1 0,04 sym sym ).The multimetais oxides of the invention are used to produce pre catalysts and catalysts for the partial oxidation in gaseous phase of hydrocarbons and aromatics which may be processed by treating with heat in bronze of silver oxide vanadium that are components cataliticamen 'active catalysts.