| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for regenerating a used denitrification catalyst, the method efficiently removing removal-difficult ions, which are adsorbed by TiO<SB>2</SB>, with the decreased number of washing times, preferably, one time washing, to promote the effective use of the used catalyst. <P>SOLUTION: In the method for regenerating a used denitrification catalyst, a used denitrification catalyst, which contains titanium oxide as the main component, contacts slurry in which titanium oxide particles are dispersed, and the liquid is removed, and then the catalyst is dried. Then, the catalyst is made to contain a solution which contains a compound of at least one kind of element selected from the group consisting of vanadium, molybdenum and tungsten, and is then dried. <P>COPYRIGHT: (C)2011,JPO&INPIT |
