METHOD FOR REGENERATING DENITRATION CATALYST

摘要

PROBLEM TO BE SOLVED: To promote the effective utilization of used denitration catalyst by regeneration by providing a method for effectively removing hardly removable ions adsorbed by the titanium oxide by a few number of cleaning times, preferably one cleaning time.

SOLUTION: The method for regenerating the used denitration catalyst through a step of cleaning the used denitration catalyst containing the titanium oxide as a main component with mineral acids or organic acids includes a step of bringing a slurry constituted by dispersing aluminium hydroxide into contact with the catalyst before or after the step of cleaning the denitration catalyst with the mineral acids or the organic acids.

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