Patent ID: 8377839

Claim:
A process for the regeneration of a catalyst comprising at least one metal from Group VIII and at least one metal from Group VIB which are deposited on a refractory oxide support, comprising: treating the catalyst in the presence of oxygen at a temperature ranging from 350° C. to 550° C.; and depositing at the surface of the catalyst an additive of formula (I) as sole additive: in which the R 1 and R 2 groups, which are identical or different, denote a hydrogen atom or a saturated or unsaturated, linear or branched hydrocarbon radical which comprises from 1 to 30 carbon atoms, which does not comprise aromatic ring(s) and which can optionally comprise one or more heteroatom(s) chosen from oxygen, nitrogen and sulphur atoms; wherein said depositing step is performed by dry impregnation of the catalyst using a solution of the additive having a volume less than or equal to the pore volume of the catayst.