摘要:
The invention provides a process for the alkylation of an aromatics compound with a olefin alkylation agent which comprises contacting the aromatic compound, especially benzene, with the alkylation agent, especially ethylene and/or propylene, in the presence of an oxide material which is delayered MWW-type zeolitic material, very suitably the material known as ITQ-2.
摘要:
A process for making a calcined, oxide material by at least partially delaminating a swollen, layered oxide material prior to calcination, and the product thereof having an increased active surface area that corresponds to an adsorption capacity for 1,3,5-trimethylbenzene of at least 0.50 mmol/g at a temperature of 42° C. and a pressure of 173.3 Pa. The calcined, oxide material retains a porous shape although non-pillared.
摘要:
The invention relates to a catalytic method for the transalkylation/dealkylation of organic compounds, consisting in bringing a supply comprising organic compounds into contact with a catalyst containing a first zeolitic component that is selected from among: a) one or more zeolites having crystalline structure ITQ-13; b) one or more zeolites having crystalline structure ITQ-13, which are modified either by means of selectivation or with the incorporation of one or more metals, or both; and c) a mixture of a) and b). The invention also relates to a catalyst comprising one or more modified zeolites having crystalline structure ITQ-13.
摘要:
The invention concerns a microporous oxide material ITQ6, with a characteristic X-ray diffraction pattern, and surface areas for which microporous surface area may be of at least 20 m2/g the external surface area may be at least 350 m2/g and the total surface area may be at least 400 m2/g. It may be made via preparation of gel, its hydrothermal treatment, and the treatment of the resulting material with a swelling solution followed by at least partial delamination e.g., by mechanical agitation or ultrasonics. The final oxide material is calcined and, in its acid form or combined with metals, especially noble metals, is useful as catalyst for the isomerization of n-butene to isobutene, or in dewaxing and isodewaxing processes and as a catalytic cracking catalyst or as an additive in FCC catalysts.
摘要:
The invention relates to a porous crystalline material (ITQ-24), the preparation method thereof and the use of same in the catalytic conversion of organic compounds. More specifically, the invention relates to a synthetic porous crystalline material which is characterised in that it is formed by tetrahedrally coordinated atoms which are interconnected by means of oxygens. Said material, which comprises a unit cell containing 56 tetrahedrally coordinated atoms, is known as ITQ-24. Moreover, in the calcined anhydrous state, the material has chemical formula nM1/pXO2: YO2, wherein: X is at least one trivalent element, Y is at least one tetravalent element, n is between 0 and 0.2 and M is at least one charge compensation cation in oxidation state p.
摘要翻译:本发明涉及多孔结晶材料(ITQ-24),其制备方法及其在有机化合物的催化转化中的用途。 更具体地说,本发明涉及一种合成多孔结晶材料,其特征在于它由四面体配位的原子形成,这些原子通过氧相互连接。 所述材料包括含有56个四面体配位原子的晶胞,称为ITQ-24。 此外,在煅烧无水状态下,该材料具有化学式nM 1 / p XO 2:YO 2 N,其中:X至少为 一个三价元素,Y是至少一种四价元素,n在0和0.2之间,M是氧化态p中的至少一种电荷补偿阳离子。
摘要:
The present invention refers to a microporous material formed by oxygen, silicon, germanium, aluminum, boron, gallium, zirconium and/or titanium in its composition, called TIQ-6, to its catalytic applications in oxidation reactions, and to a method of the TIQ-6 material's preparation based on the synthesis of a gel with a titanium and/or zirconium content, its hydrothermal treatment under controlled conditions, and the treatment of the resulting laminar material with a solution of an organic compound containing a proton accepting group. This swollen material is subjected to a specific treatment to obtain a high external area delaminated solid. A material, METIQ-6, similar to the TIQ-6 material, but also having organic groups anchored on its surface incorporated by a post-synthesis process onto the TIQ-6 material is also claimed.
摘要:
The invention relates to a microporous crystalline zeolite material having the empirical formula x(M1/nXO2):yYO2:(1−y)SiO2 wherein x has a value less than 0.02; y has a value less than 0.1; M is at least an inorganic cation with a +n charge; X is at least a chemical element having oxidation state +3, preferably selected from the group consisting of Al, Ga, B, Cr, Fe, and Y is at least a chemical element with oxidation state +4, preferably selected from the group consisting of Ge, Ti, Sn, V. The inventive material can be obtained by means of a process comprising: preparing a laminar precursor, crystallized from a reaction mixture; swelling the precursor in a solution in order to obtain a swollen laminar material; which is then washed and dried to obtain a swollen solid; delaminating the solid to obtain a delaminated material in suspension; separating the delaminating material and eliminating the organic remnants by cationic exchange and/or calcination.
摘要:
The invention concerns a microporous crystalline material, with a characteristic X-ray diffractogram, made up by oxygen tetrahedra and one metal (T+4 and T+3) with the possibility of introducing surface acidity produced by the substitution in the network of some T+4 cations (normally Si+4) by T+3 cations (normally Al+3), which gives rise to a structural charge deficiency which can be offset by protons, Brönsted acidity, and/or cations with a high charge-radium ratio, Lewis acidity. The method of preparation is based on the modification of the laminar structure of a mixed oxide (normally SiO2, Al2O3) synthesized from a gel treated under controlled hydrothermal conditions, intercalating organic molecules with a proton-acceptor group and a long hydrocarbonic chain between its laminae. The intercalated material has laminae with a significant separation between them due to the presence between them of the organic chains. The swollen material is then treated in order to separate and disperse the laminae. The final washing and subsequent calcination gives rise to a microporous material with a high external surface, the object of this invention.
摘要:
The invention relates to a novel microporous crystalline material ITQ-19 used in the catalytic conversion of organic compounds, such as, for example, the dewaxing and isodewaxing of paraffins and the disproportionation of toluene. Said material has a characteristic X-ray diffractogram, a high absorption capacity and the empirical formula x(M1/nXO2):yYO2:(1−y)SiO2 wherein x has a value less than 0.2; y has a value less than 0.1; M is at least an inorganic cation with a +n charge; X is at least a chemical element having oxidation state +3, preferably selected among Al, Ga, B, Cr, Fe; Y is at least a chemical element with oxidation stated +4, preferably selected among Ge, Ti, Sn, V. The inventive material can be obtained by means of a preparation process involving the use of one or more organic additives in a reaction mix which is crystallized by heating.
摘要翻译:本发明涉及用于有机化合物的催化转化的新型微孔结晶材料ITQ-19,例如石蜡的脱蜡和异戊二烯化和甲苯的歧化。 所述材料具有特征X射线衍射图,高吸收能力和经验公式x(M 1 / n 2 X 2 2):y Y 2 O 2 >:(1-y)SiO 2其中x的值小于0.2; y的值小于0.1; M至少为+ n电荷的无机阳离子; X至少是氧化态为+3的化学元素,优选选自Al,Ga,B,Cr,Fe; Y至少是一种化学元素,其氧化值为+4,优选选自Ge,Ti,Sn,V。本发明的材料可以通过涉及在反应混合物中使用一种或多种有机添加剂的制备方法获得, 通过加热结晶。