| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to a catalyst which includes a substrate containing at least one solid crystalline IZM-2, the X-ray diffraction pattern of which includes spectral lines recorded in the table below: n n n n where FF = very intense; F = intense; m = average; mf = moderately weak; f = weak; ff = very weak, and having a chemical composition expressed on an anhydrous base, in terms of oxide moles, having the following general formula: XO 2 : aY 2 O 3 :bM 2 / n O, wherein X represents at least one tetravalent element, Y represents at least one trivalent element and M is at least one alkali metal and/or an alkali-earth metal of valency n, a and b representing respectively the number of moles of Y 2 O 3 and M 2 / n O, and a is between 0 and 0.5 and b is between 0 and 1, and an active phase containing at least one hydro-dehydrogenating element from group VIB and/or at least one hydrogenating-dehydrogenating element from group VIII and/or at least one hydrogenating-dehydrogenating non-noble element of group VIII of the periodic table, said catalyst being a sulphide phase catalyst. The invention also relates to hydrocracking, hydrofining and hydroconversion methods where said catalyst is used. n EFFECT: obtaining a catalyst with catalytic properties in conversion processes. n 15 cl, 5 tbl, 6 ex |