LIQUEFIED PETROLEUM GAS AS RAW MATERIALS FOR THE PRODUCTION OF LIQUID OXYGEN-CONTAINING ORGANIC COMPOUNDS

Аннотация

Studies on the air oxidative transformation of the propane-butane mixture to oxygen-containing
compositions have been carried out. The optimum temperatures of the process, as well as the ratios of the initial
components of the reaction mixture and the content of the active phase on the carrier and volumetric rates have been
determined. Physical and chemical studies of the initial and treated catalysts under experimental conditions were
carried out. When changing the content of the active component on the carrier from 1 to 10%, it was found that the
most optimal is the catalyst 5% MoCrGa/TС, on which up to 22% acetone was obtained. As a result of varying the
composition of the catalyst, the content of the active phase, the ratio of reactants, up to 35–40% of acetone was
obtained. In addition, in some cases, CH3OH was obtained, with the maximum yield 22%, as well as 35% of methyl
ethyl ketone. As a result of EM and XRD studies, it was shown that under reaction conditions a new Cr2O5 phase
(corresponding to the Cr2 + and Cr3 + transition to Cr5 +) is formed on the catalyst surface, as well as joint phases of
Mo and Cr in various valence states, the physical meaning and role of which are to be determined.