A method for regenerating a denitrating

A process for the regeneration of a denitration catalyst, characterized in that cleaned to regenerate a denitration catalyst having a reduced denitration performance of the catalyst with a cleaning liquid having a hydrofluoric acid concentration of 0.3 to 3 wt .-%, wherein the cleaning liquid at a temperature of 40 to 60 ° C held is the purified catalyst is dried and the catalyst is impregnated with a catalytically active component to apply this part to the catalyst, wherein vanadium is used as a catalytic active component.