| abstract |
The present invention relates to a method for regenerating a spent aromatic alkylation or transalkylation catalyst containing molecular sieves, comprising contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 to about 600 ° C., and then contacting the catalyst with an ammonium nitrate solution. , An ammonium carbonate solution, or an aqueous solvent such as an acetic acid solution. |