RECOVERY METHOD AND REUSE METHOD OF OXO ACID CATALYST

摘要

Provided is a method for easily and efficiently recovering an oxoacid catalyst without deterioration in reaction product yield and catalytic activity, where the oxoacid catalyst has been used in a reaction for oxidizing an organic compound with hydrogen peroxide, also provided is a method for producing an oxide in which an organic compound is oxidized with hydrogen peroxide using the oxoacid catalyst recovered by the method, to yield the corresponding oxide.;A method according to the present invention recovers an oxoacid catalyst used in a reaction for oxidizing an organic compound with hydrogen peroxide in an aqueous/organic solvent two-phase system. The method includes Step 1 in which the pH in the reaction system is adjusted to 5.0 or higher so as to transfer the oxoacid catalyst to the aqueous phase, and the organic phase is removed.

主权项

1. A method for recovering an oxoacid catalyst, the oxoacid catalyst having been used in a reaction for oxidizing an organic compound with hydrogen peroxide in an aqueous/organic solvent two-phase reaction system, the method comprising
Step 1 of adjusting a pH in the reaction system to 5.0 or higher so as to transfer the oxoacid catalyst to the aqueous phase, and removing the organic phase.