Structure of the catalyst, in the form of a hollow cylinder, for the partial oxidation of the normal butane in the production of maleic anhydride

摘要

Structure of the catalyst, in the form of a hollow cylinder, for the partial oxidation of the normal butane in the production of maleic anhydride. / p & & p & the catalyst is formed by a complex based on phosphorus, vanadium and oxygen. The compressed 10 has the shape of a cylinder 11 of the catalytic material that passes through a central hole 12. / p & & p & such a catalyst gives yields more students of maleic anhydride, on the basis of the c.sub.4 hydrocarbons, and in particular of the n - butane, that the same catalyst.