摘要:
The present invention relates to a crystalline material having a framework structure comprising O and one or more tetravalent elements Y, and optionally comprising one or more trivalent elements X, wherein the crystalline material displays a crystallographic unit cell of the monoclinic space group C2, wherein the unit cell parameter a is in the range of from 14.5 to 20.5 Å, the unit cell parameter b is in the range of from 14.5 to 20.5 Å, the unit cell parameter c in the range of from 11.5 to 17.5 Å and the unit cell parameter β is in the range of from 109 to 118°, wherein the framework density is in the range of from 11 to 23 T-atoms/1000 Å3 wherein the framework structure comprises 12 membered rings, and wherein the framework structure displays a 2-dimensional channel dimensionality of 12 membered ring channels. The present invention further relates to a process for the production of said material, as well as to its use, in particular as a catalyst or catalyst component.
摘要:
The present invention relates to a zeolitic material having the IWR type framework structure, wherein the zeolitic material comprises YO 2 and X 2 O 3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, and wherein the framework structure of the zeolitic material comprises less than 5 weight-%weight-% of Ge calculated as GeO 2 and based on 100 weight-%weight-%of YO 2 contained in the framework structure, and less than 5 weight-%weight-% of B calculated as B 2 O 3 and based on 100 weight-%weight-% of X 2 O 3 contained in the framework structure. Further, the present invention relates to a process for preparing a zeo-litic material having the IWR type framework structure, wherein the zeolitic material comprises YO 2 and X 2 O 3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element.
摘要:
A rare earth element containing zeolitic material having an AEI-type framework structure, the framework structure of the zeolitic material comprising SiO 2 and X 2O 3, X being a trivalent element, wherein the zeolitic material contains one or more rare earth elements as counter-ions at the ion exchange sites of the framework structure, and wherein the zeolitic material is obtainable and/or obtained according to a process involving the hydrothermal treatment of the rare earth element containing zeolitic material at a temperature in the range of from 400 to 1,000 ℃. A coated monolith substrate comprising a rare earth element containing zeolitic material having an AEI-type framework structure, wherein the zeolitic material is supported on the monolith substrate. A process for the production of a coated monolith substrate comprising a rare earth element containing zeolitic material having an AEI-type framework structure.
摘要:
The present invention relates to a zeolitic material comprising SiO 2 and Ga 2 O 3 in its framework structure, wherein the zeolitic material comprises one or more metal cations M selected from the group consisting of Sr, Zr, Cr, Mg, Mo, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd, Ag, Os, Ir, Pt, Au, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, and mixtures of two or more thereof, wherein the one or more metal cations M are located at the ion-exchange sites of the framework structure of the zeolitic material, wherein the zeolitic material contains 1 wt.-% or less of trivalent elements, calculated as the respective element, other than Ga and other than any trivalent met-al cations among the one or more metal cations M, based on 100 wt. % of Si, calculated as SiO 2 , in the zeolitic material, and furthermore to a method for its production as well as to a process for the treatment of NO x using the inventive zeolitic materials and to an apparatus for the treatment of a gas stream containing NO x , the apparatus containing the inventive zeolitic materials, and finally to the use of the zeolitic materials according to the present invention.
摘要:
The present invention relates to a process for the production of a transition metal containing zeolite comprising expanding a layered silicate with a swelling agent and introducing the transition metal into the interlayer expanded silicate prior to calcination thereof for obtaining the transition metal containing zeolite. The present invention further relates to a zeolite containing transition metal nanoparticles as obtainable or obtained according to the inventive process, as well as to a zeolite containing nanoparticles per se. Finally the present invention relates to the use of a zeolite containing transition metal nanoparticles as obtainable or obtained according to the inventive process, as well as to the use of a zeolite containing nanoparticles per se.
摘要:
The present invention relates to a method for the preparation of a treated zeolitic material having a BEA framework structure comprising the steps of: (i) providing a zeolitic material having a BEA framework structure, wherein the BEA framework structure comprises YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element, and wherein the zeolitic material having a BEA framework structure is obtainable and/or obtained from an organotemplate-free synthetic process; (ii) calcining the zeolitic material provided in step (i) at a temperature of 650°C or more; and (iii) treating the calcined zeolitic material obtained from step (ii) with an aqueous solution having a pH of 5 or less, as well as to zeolitic materials per se preferably obtainable according to the inventive method and to their use, and to a process for converting oxygenates to olefins employing the inventive zeolitic materials.
摘要翻译:本发明涉及一种制备具有BEA骨架结构的经处理的沸石材料的方法,包括以下步骤:(i)提供具有BEA骨架结构的沸石材料,其中BEA骨架结构包含YO 2和X 2 O 3,其中Y 是四价元素,X是三价元素,并且其中具有BEA骨架结构的沸石材料可以从有机无模板合成方法获得和/或获得; (ii)在650℃以上的温度下煅烧步骤(i)中提供的沸石材料; 和(iii)用pH为5以下的水溶液以及根据本发明方法可获得的沸石材料本身及其用途来处理由步骤(ii)获得的煅烧沸石材料及其用途 使用本发明的沸石材料将含氧物转化为烯烃的方法。
摘要:
The present invention relates to a process for the preparation of a pillared silicate compound comprising a layered silicate structure and bridging silicon atoms located between adjacent silicate layers of the silicate structure, wherein said bridging silicon atoms form at least one covalent bond to each of the adjacent silicate layers, said process comprising (1) providing one or more layered silicates; (2) adding said one or more layered silicates to a solvent system, wherein the resulting mixture has a pH of 5 or less; and (3) subjecting the mixture obtained in step (2) to solvothermal conditions; wherein no silicon-containing compound according to formula (I) R4-mSi[-(SiR2)n-R]m (I) is used at any point of the process up to and including step (3), wherein m is 1, 2, 3, or 4, and n is an integer greater than or equal to 0, wherein when n is equal to 0, one or more residues R are leaving groups, and wherein none of the residues R contains Si, as well as to a pillared silicate compound per se, preferably as obtained and/or obtainable according to the inventive process as well as to the use of the inventive compounds.
摘要:
The present invention relates to a process for the preparation of butadiene comprising (i) providing a gas stream G- comprising ethanol; (ii) contacting the gas stream G- provided in (i) with a catalyst, thereby obtaining a gas stream G-2 comprising butadiene; wherein the catalyst comprises a crystalline material supporting one or more catalytically active metals M, as well as to the use of the crystalline material supporting one or more catalytically active metals M.
摘要:
A method of dehydration of at least one compound (A) comprising, in the chain form, -at least one hydroxyl group and -at least one carbonyl functionality selected from the group consisting of aldehyde (CHO), ke- tone (CO) and carboxylic acid (COOH) and mixtures thereof,in the presence of at least one zeolite which is (a) obtainable from an organotemplate-free synthetic process and (b) isomorphously substituted comprising silicon, aluminum and at least one further metal wherein the at least one further metal is selected from the group consisting of the elements of Group 3 to 14 in Period 4 to 6and mixtures thereof.
摘要:
The present invention relates to A process for the preparation of a layered silicate containing at least silicon and oxygen, comprising (1) providing a mixture containing silica and/or at least one silica precursor, water, at least one tetraalkylammonium compound selected from the group consisting of diethyldimethylammonium compound, a triethylmethylammonium compound, and a mixture of a diethyldimethylammonium and a triethylmethylammonium compound, and at least one base, and optionally at least one suitable seeding material; and (2) heating of the mixture obtained according to (1) under autogenous pressure (hydrothermal conditions) to a temperature in the range of from to 120 to 160 °C for a period in the range of from 5 to 10 days to give a suspension containing the layered silicate.