Self-Condensation of Acetone on Strontium Stannate under Suprcritical Conditions
Aldol condensation of acetone on strontium stannate isstudied at a temperature of 250- 400 °C and a pressure of 2.5 and 12.5 MPa. The main reaction products are mesityl oxide and isophorone. It is shown that the SrSnO<sub>3</sub> catalyst is stable under supercritical conditions and its productivity with respect to mesityl oxide isomers at 350 °C and 12.5 MPa equals 9 g • h<sup>-1 </sup>gcat<sup>-1,</sup> which is higher than in the gas phase.