A comparative study of two methods of ion exchange of a NaX zeolite molded with a binder is performed. The first method (I) consists in the successive treatment of the zeolite with solutions of calcium, lanthanum, and ammonium nitrates at 80 degrees C under stirring over granules with the use of intermediate dryings and calcinations after each ion exchange. The second method (II) involves the successive hydrothermal treatment of the zeolite with the solutions of the salts at 140 degrees C with intermediate rinsings. It is found that an almost complete replacement of sodium cations in the zeolite lattice (no more than 0.6 wt % of residual Na2O) requires a threefold ion exchange by method II and a fourfold ion exchange by method I. Comparing the physicochemical and catalytic properties of the obtained samples shows the advantage of ion exchange by method II due to preservation of the initial structural characteristics of the zeolite and, hence, higher concentration and strength of acid sites.