Reivindicaciones
1. A microporous crystalline material of zeolitic nature with an X-ray diffraction pattern substantially in accordance with that which is established in Tables I and II for the material as it is synthesized and after calcination, respectively and with a chemical composition in the calcined and anhydrous state that may be represented by the following empirical formula x(M<1/n>XO<2>):yYO<2>:SiO<2> wherein x has a value lower than 0.15; it may be equal to zero; and y has a value lower than 0, 1; it may be equal to zero; M is H<+> or an inorganic cation of charge +n; X is a chemical element with oxidation state (Al, Ge, B, Cr) and Y is a chemical element with oxidation state +4 (Ti, Ge, V). 2. A zeolite according to claim 1 whose chemical composition in the calcined and anhydrous state 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 lower than 0.15, and it may be equal to zero, y has a value lower than 0.1, it may also be equal to zero, and wherein the cation H<±> may be exchanged by other mono-, di- or trivalent organic or inorganic cations. 3. A zeolite in accordance with claim 1 whose chemical composition in the calcined and anhydrous state may be represented by the following empirical formula x(HalO<2>):SiO<2> wherein x has a value lower than 0.15, it may also be equal to zero and wherein the H<±> cation may be exchanged by other mono-, di- or trivalent organic or inorganic cations. 4. A zeolite in accordance with claim 1 whose chemical compound in the calcined and anhydrous state may be represented by SiO<2>. 5. A method for synthesizing the zeolite of the above claims wherein a reaction mixture that contains a source of SiO<2>, an organic cation R<±> (preferably N,N-dimethyl-6-azonium-1,1,3-trimethylbicyclo(3.2.1.) octane), a source of F<-> fluor, a source of one or several tetravalent elements Y different from Si, a source of one or several tetravalent elements X and water subjected to heating with or without stirring at a temperature between 80 and 200º C, preferably between 130 and 180ºC, until achieving crystallization thereof and wherein the reaction mixture has a composition, in terms of molar ratios of oxides, comprised between the ranges X<2>O<3>/SiO<2>=0-0.1, preferably 0-0.5 ROH/SiO<2>=0.05-2.0, preferably 0.2-1.50 F<->/Si=0-2, preferably 0.2-1.50 YO<2>/SiO<2>=0-0.1 H<2>O/SiO<2>=3-100, preferably 5-50, more preferably 7-50. 6. A method for synthesizing the zeolite of the above claims wherein a reaction mixture that contains a source of SiO<2>, an organic cation R<±> (preferably), a source of fluoride anions, a source of one or several trivalent elements X and water is subjected to heating with or without stirring at a temperature between 80 and 200º C, preferably between 130 and 180ºC, until achieving crystallization, and wherein the reaction mixture has a composition in terms of molar ratios of oxides, comprised between the ranges x<2>O<3>/SiO<2>=0-0.1, preferably 0-0.5 ROH/SiO<2>=0.05-2.0, preferably 0.2-1.5 F<->/Si=0-2, preferably 0.2-1.5 H<2>O/SiO<2>=3-100, preferably 5-50, more preferably 7-50. 7. A method for synthesizing the zeolite of claims 1 and 3 wherein the reaction mixture that contains a source of SiO<2>, an organic cation R<±> (preferably N,N-dimethyl-6-azonium-1,1,3-trimethylbicyclo(3.2.1.) octane), a source of fluoride anions, a source of Al and water is subjected to heating with or without heating at a temperature between 80 and 200ºC, preferably between 130 and 180ºC, until achieving its crystallization, and wherein the reaction mixture has a composition, in terms of molar ratios of oxides, comprised between the ranges Al<2>O<3>/SiO<2>=0-0.1, preferably 0-0.5 ROH/SiO<2>=0.05-2.0, preferably 0.2-1.5 F<->/Si=0-2, preferably 0.2-1.5 H<2>O/SiO<2>=3-100, preferably 5-50, more preferably 7-50. 8. A method for synthesizing the zeolite of claims 1 and 4 wherein a reaction mixture that contains a source of SiO<2>; an organic cation R<±> (preferably N,N-dimethyl-6-azonium-1,1,3-trimethylbicyclo(3.2.1.) octane(, a source of fluoride anions and water is subjected to heating with or without stirring at a temperature between 80 and 200º C, preferably between 130 and 180º C, until achieving its crystallization, and wherein the reaction mixture has a composition, in terms of molar ratios of oxides, comprised between the ranges ROH/SiO<2>=0.05-2.0, preferably 0.2-1.5 F<->/Si=0-2, preferably 0.2-1.50 H<2>O/SiO<2>=3-100, preferably 5-50, more preferably 7-50. 9. A method for synthesizing the zeolite of claims 1 and 2 wherein a reaction mixture that contains a source of SiO<2>, an organic cation R<±> (preferably N,N-dimethyl-6-azonium-1,3,3-trimethylbicyclo(3.2.1.) octane, a source of fluoride anion, a source of one or several tetravalent elements Y different from Si, and water is subjected to heating with or without stirring at a temperature between 80 and 200º C, preferably between 130 and 180º C, until achieving its crystallization, and wherein the reaction mixture has a composition, in terms of molar ratios of oxides, comprised between the ranges ROH/SiO<2>=0.05-2.0, preferably 0.2-1.5 F<->/Si=0-2, preferably 0.2-1.5 YO<2>/SiO<2>=0-0.1 H<2>=/SiO<2>=3-100, preferably 5-50, more preferably 7-50. 10. A method for synthesizing the crystalline material of claims 1-4 in accordance with claims 5-9 wherein the organic cation is added in hydroxide form or in the form of a mixture of hydroxide and another salt, preferably a halide, and the fluoride anion is added in the form of ammonium fluoride, in such a way that the pH of the mixture is equal to or lower than 12, preferably lower than 11, and may even be neutral or slightly acidic. 11. A method for synthesizing a microporous crystalline material in accordance with claim 10 and the previous ones, so that the crystalline material has an X-ray diffraction patterns substantially in accordance with what is established in tables I and II for the material just as it is synthesized and after calcination, respectively, and with a chemical composition in the calcined and anhydrous state that may be represented by the following empirical formula x(M<1/n>XO<2>):yYO<2>:SiO<2> wherein x has a value lower than 0.15, it may likewise be equal to zero; y has a value lower than 0.04, and may likewise be equal to zero; M is H<-> or an inorganic cation of charge +n; X is a chemical element is an oxidation state +3 (such as, for example, Al, Ga, B, Cr) and Y is a chemical element with an oxidation state +4 (such as, for example, Ti, Ge, V). 12. A method for synthesizing the zeolite of claims 1-4 and 11 according to the process of claims 5-10 wherein to the reaction mixture is added an amount of crystalline material (preferably with the characteristics of the material of claims 1-4 and 11) as crystallization promoter, said amount being comprised in the range of 0 to 15% by weight with regard to the total silica added, preferably 0.05 to 5%. 13. A method for synthesizing the zeolite of claims 1-4 and 11 according to the process of claims 5-10 and 12 wherein the reaction mixture is essentially free of alkali cations, the only limitation to this condition being the possible content of alkali impurities of the reagents used. 14. A method for synthesizing the zeolite of the claims 1-3 and 11 according to the process of claims 5, 6, 7, 9, 10 and 12, wherein a source of a tetravalent element different than Si is added or a trivalent element is added in an intermediate step during the heating of the reaction. 15. Use of the microporous crystalline material of claims 1-4 and 11 in processes of separation of iso- and normal paraffins, by selective adsorption of the normal paraffins. 16. Use of the microporous crystalline material of claims 1-4 and 11 in process of separation of isobutane and n-butane by selective adsorption of n-butane. 17. Use of the microporous crystalline material of claims 1-4 and 11 in processes of separation of isopentane and n-pentane by selective adsorption of n-pentane. 18. Use of the microporous crystalline material of claims 1-4 and 11 in processes of separation of iso- and normal olefins, by selective adsorption of n-olefins. 19. Use of the microporous crystalline material of claims 1-4 and 11 in process of separation of isobutene and normal butene, by selective adsorption of n-butene. 20. Use of the microporous crystalline material of claims 1-4 and 11 in process of separation of isopentene and normal pentene, by selective adsorption of n-pentene. 21. Use of the microporous material of claims 1-4 and 11 in processes of separation of organic compounds which may or may not contain heteroatoms and with a kinetic diameter smaller than 5-5.5 Å, by selective adsorption of the same in mixtures containing compounds with a kinetic diameter larger than 5-5.5 Å. 22. Use of the microporous crystalline material of claim 4 in processes of separati8on of organic compounds with a kinetic diameter smaller than 5.5 Å. Present in polar streams and especially aqueous ones, for the purpose of purifying said streams. 23. Use of the microporous crystalline material of claims 1-4 and 11 as a catalyst for selective cracking and hydrocracking of linear paraffins and/or olefins. 24. Use of microporous crystalline material of claims 1-4 and 11 as a catalyst of "postreformate" of gasoline. 25. Use of the microporous crystalline material of claims 1-4 and 11 as catalyst to produce streams with a high content of ethylene, propylene and butene by cracking in the presence or absence of steam. 26. Use of the microporous crystalline material of claims 1-4 and 11 as a catalyst in dewaxing processes by selective cracking of n-paraffins. 27. Use of the microporous crystalline material of claims 1-4 and 11 as a catalysts in processes of conversion of methanol into olefins.
