New crystalline solid zeolite for use as adsorbent or catalyst, shows a characteristic X-ray diffra

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The invention relates to a crystallized solid, indicated under the name IZM-1, which presents a diagram of diffraction of x-rays as given below. The aforementioned solid presents a chemical composition, expressed on a basis anhydrous, in terms of moles of oxides, by the following general formula : XO2 : aY2O3 : bM2/nO in which X represents at least a tetravalent element, Y represents at least a trivalent element and M is an alkaline metal and/or an alkaline-earth metal of valence N, has and B representing repectivement the number of moles of Y2O3 and M2/nO and has lies between 0 and 0, 02 and B lies between 0 and 1.