摘要:
The present invention concerns a new cracking process, preferably a fluid catalytic process, characterized in that it is carried out in the presence of a catalyst containing ERS-10 zeolite. The invention also relates to a new catalytic composition containing said ERS-10 zeolite, which can be used as catalyst in catalytic cracking processes, in particular in fluid catalytic cracking processes (FCC).
摘要:
The present invention relates to new organic-inorganic hybrid silicates and metal-silicates called ECS, characterized by an X-ray powder diffraction pattern with reflections exclusively at angular values higher than 4.0° of 2Θ, preferably at angular values higher than 4.7°, and an ordered structure containing structural units having formula (a) wherein R is an organic group: Formula (a) and possibly containing one or more elements T selected from groups III B, IV B, V B and transition metals, with a Si/(Si+T) molar ratio in said structure higher than 0.3 and lower than or equal to 1, wherein Si is the silicon contained in the structural unit (a). A process is also described, starting from disilanes, for the preparation of these materials, which does not include the use of templates or surfactants. These materials can be used as molecular sieves, adsorbents, in the field of catalysis, in the field of electronics, in the field of sensors, in the field of nanotechnologies.
摘要:
The present invention relates to new organic-inorganic hybrid silicates and metal-silicates called ECS, characterized by an X-ray powder diffraction pattern with reflections exclusively at angular values higher than 4.0° of 2θ, preferably at angular values higher than 4.7°, and an ordered structure containing structural units having formula (a) wherein R is an organic group: Formula (a) and possibly containing one or more elements T selected from groups III B, IV B, V B and transition metals, with a Si/(Si +T) molar ratio in said structure higher than 0.3 and lower than or equal to 1, wherein Si is the silicon contained in the structural unit (a). A process is also described, starting from disilanes, for the preparation of these materials, which does not include the use of templates or surfactants. These materials can be used as molecular sieves, adsorbents, in the field of catalysis, in the field of electronics, in the field of sensors, in the field of nanotechnologies.
摘要翻译:本发明涉及新的有机 - 无机杂化硅酸盐和称为ECS的金属硅酸盐,其特征在于X-射线粉末衍射图,其特征在于高于4.0°的角度值的反射,优选高于4.7°的角度值, 和具有式(a)的结构单元的有序结构,其中R是有机基团:式(a)并且可能含有选自IIIB,IVB,VB族和过渡金属的一种或多种元素T,其中Si /( Si + T)摩尔比高于0.3且小于或等于1,其中Si是包含在结构单元(a)中的硅。 还描述了从二硅烷开始制备这些材料的方法,其不包括使用模板或表面活性剂。 这些材料可用作纳米技术领域的电子领域,传感器领域的催化剂领域的分子筛,吸附剂。
摘要:
A porous, crystalline material, designated ERS-10 zeolite, having in its calcined and anhydrous form a molecular composition of oxides corresponding to the formula (I):mM.sub.2/n O.zX.sub.2 O.sub.3.YO.sub.2 (1)wherein m, n, M, z, X and Y are as defined herein, the crystalline material having an X-ray diffraction spectrum shown in Table 1 herein.
摘要:
Catalyst based on molibden and silicon having a surface area ranging from 20 to 400 m2/g and a molar ratio Mo/Si>0.2 obtainable with a process which comprises: a) dissolving a soluble molibden salt in an aqueous solution containing at least one basic compound selected from ammonium hydroxides having general formula (I): R1R2R3R4N+OH− (I) b) adding to the solution of step (a) at least one compound of silicon capable of hydrolyzing to Sio2; c) gelifying and calcining the gel obtained.
摘要:
The present invention relates to new hybrid, organic-inorganic hybrid silicates and metal-silicates characterized by a crystalline structure containing structural units having formula (a), wherein R is an organic group possibly containing one or more element T selected from Group IIIB, IVB, VB and from transition metals. A process starting from cyclic trisilanes for the preparation of said materials, is also described. These materials can be used as molecular sieves, adsorbents, in the field of catalysis, in the field of electronics, in the field of sensors, in the area of nanotechnology.
摘要:
Process for the preparation of a micro-mesoporous gel consisting of a silica matrix in which one or more metal oxides are possibly dispersed comprising: (a) subjecting to hydrolysis and gelification a tetra-alkylorthosilicate with an alkyl-trimethylammonium hydroxide having the formula R(CH3)3N—OH, wherein R is selected from n-butyl, n-pentyl, n-hexyl and n-heptyl, possibly in the presence of one or more metal compounds, the molar ratios in this mixture being: R—OH/SiO2=0-10; R(CH3)3N—OH/SiO2=0.05-0.4; H2O/SiO2=5-40; metal oxides/SiO2=0-0.02; whereas the ratio H2O/R(CH3)3N—OH varies according to the number of carbon atoms in the alkylic chain R as follows: R=n-butyl, H2O/R(CH3-)3N—OH
摘要翻译:用于制备由二氧化硅基质组成的微孔介质凝胶的方法,其中一种或多种金属氧化物可能被分散,包括:(a)使原硅酸四烷基酯与具有式R的烷基 - 三甲基氢氧化铵进行水解和凝胶化 CH3)3N-OH,其中R选自正丁基,正戊基,正己基和正庚基,可能在一种或多种金属化合物存在下,该混合物中的摩尔比为:R-OH / SiO2 = 0-10; R(CH3)3N-OH / SiO2 = 0.05-0.4; H2O / SiO2 = 5-40; 金属氧化物/ SiO2 = 0-0.02; 而H 2 O / R(CH 3)3 N-OH的比例根据烷基链R中的碳原子数按如下方式变化:R =正丁基,H 2 O / R(CH 3)3 N-OH 35; R =正戊基,H 2 O / R(CH 3)3 N-OH <70; R =正己基,H 2 O / R(CH 3)3 N-OH <102; R =正庚基,H 2 O / R(CH 3)3 N-OH <136; (b)使步骤(a)中获得的凝胶或固体进行干燥和煅烧。
摘要:
The present invention relates to new hybrid, organic-inorganic hybrid silicates and metal-silicates characterized by a crystalline structure containing structural units having formula (a), wherein R is an organic group possibly containing one or more element T selected from Group IIIB, IVB, VB and from transition metals. A process starting from cyclic trisilanes for the preparation of said materials, is also described. These materials can be used as molecular sieves, adsorbents, in the field of catalysis, in the field of electronics, in the field of sensors, in the area of nanotechnology.
摘要:
The present invention relates to a mesoporous gel comprising an alumina matrix in which one or more oxides selected from silica, boron oxide, phosphorus oxide, oxides of metals of groups VIII and VIB, may be uniformly dispersed. The present invention also relates to a process for the preparation of this gel and its uses as carrier, as catalyst for acid-catalyzed reactions and as hydrotreating catalyst.
摘要:
Micro-mesoporous gel consisting of a silica matrix possibly wherein one or more metal oxides selected from transition metals or metals belonging to groups IIIA, IVA and VA are uniformly dispersed, characterized by a monomodal porosity distribution.