ITQ-7 ZEOLITE
The present invention relates to a microporous crystalline material of zeolitic nature and which is called ITQ-7, to the process for its preparatio n and to its utilization in methods for separating and transforming organic compounds. The chemical composition of the ITQ-7 material in its calcined an...
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Zusammenfassung: | The present invention relates to a microporous crystalline material of zeolitic nature and which is called ITQ-7, to the process for its preparatio n and to its utilization in methods for separating and transforming organic compounds. The chemical composition of the ITQ-7 material in its calcined an d anhydrous conditions has the empiric formula x(M1/nXO2):yYO2:SiO2, wherein x is smaller than 0.06 and possibly equal to 0; y is smaller than 0.1 and can be equal to zero; M is H+ or an inorganic cation with +n charge; X is a chemica l element in oxidation status +3 (Al, Ga, B, Cr) and Y is a chemical element with oxidation status +4 (Ti, Ge, V). When x = 0 and y = 0 the material ITQ- 7 can be described as a new polymorph form of microporous silica. The zeolitic material of this invention is also characterized by its X ray diffraction grating and its microporous proprieties. The preparation process is characterized by the use of one or various organic additives in a reaction mixture which is allowed to crystallize through heating. |
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