Reivindicaciones
1. A microporous crystalline material of zeolitic nature with an X ray diffraction pattern which is substantially concordant with that established in Tables I (figure 1) and II (figure 2) for the material, such as is synthesized, and after roasting, respectively and with a chemical composition in roasted and anhydrous stage which may be represented by the following empirical formula x(M<1/n>XO<2>):YO<2>:SiO<2> wherein x has a value smaller than 0.02, and may equal zero; y has a value smaller than 0.04, and may likewise equal zero; M is H+ or an inorganic cation with charge +n; X is a chemical element with oxidation status of +3 (as, for example, Al, Ga, B, Cr) and Y is a chemical element with oxidation status +4 (as, for example, Ti, Ge, V). 2. A zeolite according to claim 1, the chemical composition of which, in roasted and anhydrous stage may be represented by the following empirical formula x(HXO<2>):yYO<2>:SiO<2> wherein X is a trivalent element (Al, B, Ga, Cr, ...), Y is a tetravalent element different from Si (Ti, Ge, V,...), x has a value smaller than 0.02, and may equal zero, y has a value smaller than 0.04, and may likewise equal zero, and where the H+ cation may be interchanged by other mono-, di- or trivalent, organic or inorganic cations. 3. A method for synthesizing the zeolite of the previous claims, in which a reaction mixture which contains a source of SiO<2>, hydroxide of a R+ organic cation, (preferably N, N, N trimethyl-1-adamantammonium or N, N, N-trimethyl-2-adamantammonium or a mixture of both), a source of one or various tetravalent elements and different to Si, a source of one or various trivalent X elements and water is subjected to heating with or without agitation at temperatures between 80 and 200°C, preferably between 130 and 180°C, until its crystalliztion is obtained, and in which the reaction mixture has a composition, in terms of oxide molar relations, comprised between the ranges. X<2>O<3>/SiO<2>=0-0,033 ROH/SiO<2>=0,1-0,5, preferably 0,2-0,4 YO<2>/SiO<2>=0-0,05 H<2>O/SiO<2>=4-100, preferably 5-50, more preferably 25-50 . 4. A method for the synthesizing of zeolite of the previous claims, in which a reaction mixture which contains a source of SiO<2>, hydroxide of an organic cation R+, (preferably N,N, N-trimethyl-1-adamantammonium or N, N, N -trimethyl-2-adamantammonium, or mixtures of both), a source of one or various trivalent elements X and water, is subjected to heating with or without agitation, at temperatures between 80 and 200°C, preferably between 130 and 180°C, until its crystallization is obtained, and in which the reaction mixture has a composition, in terms of the molar relations of oxides, comprised between the ranges X<2>O<3>/SiO<2>=0-0,03 ROH/SiO<2>=0,1-0,5, preferably 0,2 - 0,4 H<2>O/SiO<2>=4-100, preferably 5-50, more preferably 25-50. 5. A method for synthetizing the zeolite of the previous claims, in which a reaction mixture which contains a source of Si0<2>, hydroxide of an organic cation R+ (preferably N,N, N trimethyl-1-adamantammonium or N, N, N-trimethyl-2-adamantammonium, or a mixture of both), a source of one or various tetravalent elements Y different to Si, and water, are subjected to heating with or without agitation at temperatures between 80 and 200°C, preferably between 130 and 180°C, until its cristallization is obtained, and in which the reaction mixture has a composition, in terms of the molar relations of oxides, comprised between the ranges ROH/SiO<2>=0,1-0,5, preferably 0,2-0,4 YO<2>/SiO<2>=0-0,05 H<2>O/SiO<2>=4-100, preferably 5 - 50, more preferably 25 - 50. 6. A method of synthesis of a microporous crystalline material according to claims 3, 4 and 5, in which to the reaction mixture is added a primary or secondary RN amine (preferably hexamethylenimine, heptamethylenimine, homopiperazine, cyclopenthylamine, cyclohexylamine, cyclohepthylamine or a mixture of the same), in a relation RN/R+ comprised in the range 0-20, preferably 0-5, and in which the quaternary R+ ammonium cation (preferably N, N, N -1-trimethyladamantammonium or N, N, N-2-trimethyladamantammonium, or a mixture of both) may be added as hydroxide or as another salt (preferably Halide) or a mixture of both. 7. A method of synthesis of a microporous crystalline material according to claim 6 and preceding ones, in which said crystalline material has an x ray diffraction pattern which is substancially concordant with the one established in Tables I and II for the material, such as is synthesized and after roasting respectively, and with a chemical composition in roasted and anhydrous stage which may be represented by the following empirical formula: x(M<1/n>XO<2>)yYO<2>:SiO<2> wherein x has a value smaller than 0,1, and may equal Zero; y has a value smaller than 0.04, and may likewise equal Zero; M is H+ or an inorganic cation with the charge +n; X is a chemical element with oxidation status +3 (as, for example, AL, Ga, B, Cr) and Y is a chemical element with oxidation status +4 (as for example, Ti, Ge, V). 8. A method for synthesizing the zeolite of claims 1, 2 and 7 according to the procedure of claims 3, 4, 5, and 6 where a quantity of crystalline material (preferably with the characteristicas of the material of claims 1, 2 and 7) is added to the reaction mixture as promotor of the crystallization, said quantity being comprised within the range 0.01 to 15 % in weight as regards the total added silica, preferably 0.05 to 5% . 9. A method for synthesizing the zeolite of claims 1, 2 and 7 according to the procedure of claims 3, 4, 5, 6 and 8, where the reaction mixture is essentially free of alkaline cations, the only limitation to this condition being the possible contents in alkaline impurities of the used reactives. 10. A method for synthesizing the zeolite of claims 1, 2 and 7 according to the proc edure of claims 3, 4, 5, 6 and 8, where a source of a tetravalent elements is introduced which is different to Si or to a trivalent element in an intermediate stage during the heating of the reaction mixture. 11. Use of the microporous crystalline material of claims 1, 2 and 7 in separation processes of hydrocarbides and as catalyst in processes of cracking, hydrocracking, light hydrocracking, olefins isomerization (for example, butene isomerization to isobutene and pentene to isopentene) and in selective catalytic oxidation processes using organic or inorganic hydroperoxides (as, for example, aromatic hydroxilation, olefin epoxidation, alkane oxidation and alcohols, ketone amoximation, sulfide oxidation and organic sulfoxides).
