Patent ID: 7629287

Claim:
A process of reconstituting an active oxidation catalyst from a deactivated oxidation catalyst comprising a titanosilicate having deposited thereon one or more catalytic metals and, optionally, one or more promoter metals, the process comprising: (a) pretreating the deactivated oxidation catalyst comprising a titanosilicate having deposited thereon one or more catalytic metals and, optionally, one or more promoter metals with an oxidant; (b) contacting the oxidant-treated oxidation catalyst with acid under conditions sufficient to obtain a titanosilicate substantially free of the one or more catalytic metals and optional one or more promoter metals; (c) washing the titanosilicate from step (b) under conditions sufficient to remove residual acid and reclaim the titanosilicate; (d) optionally, drying the reclaimed titanosilicate; (e) optionally, calcining the reclaimed titanosilicate obtained from step (c) or (d); and (f) depositing one or more catalytic metals and optionally one or more promoter metals onto the reclaimed titanosilicate under conditions sufficient to obtain the reconstituted oxidation catalyst.