| 摘要 |
<p>The invention relates to a microporous crystalline material of zeolite nature and known as ITQ-3 to the process for preparing such material and its utilization in processes of separation and transformation of organic compounds. In a calcined and anhydrous status, the chemical composition of the material corresponds to the empiric formula: x(M1/nxo2):yYO2:SiO2 wherein x has a value lower than 0.15 and eventually being equal to zero; y has a value lower than 0.1 and can be equal to zero; M is H+ or an inorganic cation with a charge +n; X is a chemical element of oxidation status (Al. Ge, B, Cr) and Y is a chemical element with oxidation status +4(Ti, Ge, V). When x=0 and y=0 the material can be described with a new polymorph from of microporous silica. The material of this invention is also characterized by its X ray diffraction pattern and its microporous properties. The preparation process is characterized by the use of one or valuous organic additives to a reaction mixture which is caused to crystallize by heating.</p> |
