Ultrasonic recovery of a palladium catalyst for 3,7-dimethyl-6-octaen-1-yn-3-ol hydrogenation

A positive effect of ultrasound action on the regeneration of a commercial Pd/Al 2 O 3 catalyst used for 3,7-dimethyl-6-octaen- 1-yn-3-ol hydrogenation was found. The optimum intensity and duration of the ultrasonic treatment were determined.