Method for oxidation of limonene to limonene 1,2-diol and carvone

摘要

the object of the application is the way to limonene oxidation 1,2-diol limonene and carvone, using oxidant in the form of a 60% aqueous solution of hydrogen peroxidein the presence of a solvent and a catalyst, which is characterized by the fact that as a catalyst is catalyst usm - 5 of silicon to aluminium ratio sio2 / al2o3 from 30 to 1300, in volume 2,45% by weight in the reaction mixture, the process runs at 80 - 100u00b0c during from 0,5 to 360 hoursat the concentration of solvent in the mixing reaction of 45 to 95% by weight.the oxidation of limonene is under atmospheric pressure, at a mole ratio of limonene: an oxidizer equal to 1, 2 to 1: 1. as the solvent is methanol or isopropanol.raw materials in the process of oxidation is beneficial in the following order: catalyst, limonene, methanol or isopropanol.while the oxidant solution is just to the reaction mixture after reaching the temperature range from 80 - founded reaction 100u00b0c.