process for reconstituting an active oxidation catalyst from a deactivated oxidation catalyst, process for reconstituting an active oxidation catalyst and process for recovering a titanosilicate from a deactivated oxidation catalyst

摘要

PROCESS FOR RECONSTRUCTING AN ACTIVE OXIDATION CATALYST FROM A DISABLED OXIDATION CATALYST, PROCESS FOR RECONSTRUCTING AN ACTIVE OXIDATION CATALYST AND PROCESS TO RECOVER A TYANOSYLICATE FROM AN OFFICIAL OXIDATION The present invention relates to a method for recovering a titanosilicate from a deactivated or depleted oxidation catalyst containing a titan silicate having deposited on it one or more catalytic metals, such as gold, and optionally one or more metal (promoter (s)). (s), the method of treating the deactivated catalyst with an oxidant, contacting the oxidant-treated catalyst with an acid, preferably regal water, washing the titan silicate to remove residual acid, and optionally drying and / or calcining. a method for reconstituting an active oxidation catalyst from a deactivated oxidation catalyst, the method involving recovering the titanosilicate as indicated above, and then depositing one or more catalytic metals and optionally one or more promoter metal (s) onto recovered titanosilicate.