In Rasching process of manufacture of phenol  from benzene the catalyst used is

In Rasching method phenol is prepared as follows

C₆H₆ + HCl + $\frac{1}{2}{\mathrm{O}}_2$$\underset{{250}^0\mathrm{C}}{\overset{{\mathrm{CuCl}}_2}{\to }}$C₆H₅Cl$\underset{{425}^0\mathrm{C}}{\overset{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{Steam}\right)}{\to }}$C₆H₅OH+HCl