Oxidation of propene to acetone in water solutions in the presence of homogeneous catalysts (Pd 2+ + HPA-x, where HPA-x = H 3+x PV x Mo 12-x O 40 , x = 1−4) is studied. This reaction is shown to be of 1st order with respect to C 3 H 6 and of the 0.5th order with respect to Pd. The reaction rate does not depend on the concentration of HPA-x and acidity of the catalyst solution. The apparent activation energy of the reaction is 21 kJ/mol. A reaction mechanism is proposed.
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