Process for the reactivation of a platinum-group metal catalyst for the hydrogenation of sugars.

摘要

1. Process for the reactivating of a catalyst, on the basis of at least one metal from the platinum group and/or at least one oxide of said metals, for the hydrogenation of the sugars, characterized in that it comprises washing the catalyst and the support thereof with water, and treating these latter one thereafter until the complete reactivation of the catalyst, by means of a gas containing 1 to 100 % by volume of oxygen, the treatment of the catalyst and of the support thereof with this gas being performed at a temperature lying between 80 and 150 degrees C and under a pressure lying between 5 and 10 bars.