Abstract: 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 ?, the M unit cell parameter b is in the range of from 14.5 to 20.5 ?, the unit cell parameter c in the range of from 11.5 to 17.5 ? and the unit cell parameter ? 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 ?3 wherein the framework structure comprises 12 membered rings, and wherein the framework structure displays a 2-dimensional channel e dimensionality of 12 membered ring channels. The present invention further relates to a process for the production of said material, as N well as to its use, in particular as a catalyst or catalyst component.

Abstract: The present invention relates to a process for the preparation of a zeolitic material SiO2 and X2O3 in its framework structure, wherein X stands for a trivalent element, wherein said process comprises interzeolitic conversion of a first zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein the first zeolitic material has an FER-, TON-, MTT-, BEA-, MEL-, MWW-, MFS-, and/or MFI-type framework structure to a second zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein the second zeolitic material obtained in (2) has a different type of framework structure than the first zeolitic material. Furthermore, the present invention relates to a zeolitic material per se as obtainable and/or obtained according to the inventive process and to its use, in particular as a molecular sieve, as an adsorbent, for ion-exchange, or as a catalyst and/or as a catalyst support.

Abstract: A zeolitic material having the ITH framework structure type.A process for the preparation of a zeolitic material having the ITH framework structure type, the process comprising: (1) preparing a mixture comprising one or more specific organotemplates as structure direct-ing agents, one or more sources of YO2, optionally one or more sources of X2O3, seed crystals, and a solvent system, wherein Y is tetravalent element and X is a trivalent ele-ment,(2) heating the mixture obtained in (1) for crystallizing a zeolitic material having the ITH framework structure type comprising YO2 and optionally X2O3 in its framework structure; wherein the one or more organotemplates comprise a specific polymeric cation.

Abstract: The present invention relates to a zeolitic material having the IWR type framework structure, wherein the zeolitic material comprises YO2 and X2O3 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 GeO2 and based on 100 weight-% weight-% of YO2 contained in the framework structure, and less than 5 weight-% weight-% of B calculated as B2O3 and based on 100 weight-% weight-% of X2O3 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 YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element.

Abstract: A process for preparing an oxidic material comprising a zeolitic material having framework type AEI and a framework structure comprising a tetravalent element Y, a trivalent element X, and O, the process comprising preparing a synthesis mixture comprising water, a source of Y, a source of X comprising sodium, an AEI framework structure directing agent, and a source of sodium other than the source of X; and heating the synthesis mixture obtained from (i) to a temperature in the range of from 100 to 180° C. and keeping the synthesis mixture under autogenous pres-sure at a temperature in this range for a time in the range of at least 6 h, obtaining the oxidic material comprising a zeolitic material having framework type AEI and a framework structure comprising a tetravalent element Y, a trivalent element X, and O, comprised in its mother liquor; wherein the AEI framework structure directing agent according to (i) comprises a N, N-diethyl-2,6-dimethylpiperidinium cation.

Abstract: The present invention relates to a process for the production of a zeolitic material having an MWW framework structure comprising YO2 and B2O3, wherein Y stands for a tetravalent element, said process comprising (i) preparing a mixture comprising one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (ii) crystallizing the mixture obtained in (i) for obtaining a layered precursor of the MWW framework structure, (iii) calcining the layered precursor obtained in (ii) for obtaining the zeolitic material having an MWW framework structure, wherein the one or more organotemplates have the formula (I) R1R2R3N ??(I) wherein R1 is (C5-C8)cycloalkyl, and wherein R2 and R3 are independently from each other H or alkyl, and wherein the mixture prepared in (i) and crystallized in (ii) contains 35 wt.-% or less of H2O based on 100 wt.

Abstract: The present invention relates to a rare earth element containing zeolitic material having a framework structure selected from the group consisting of AEI, AFT, AFV, AFX, AVL, CHA, EMT, GME, KFI, LEV, LTN, and SFW, including mixtures of two or more thereof, the framework structure of the zeolitic material comprising SiO2 and X2O3, wherein X stands for a trivalent element, wherein the zeolitic material displays an SiO2:X2O molar ratio in the range of from 2 to 20, and wherein the zeolitic material contains one or more rare earth elements as counter-ions at the ion exchange sites of the framework structure. Furthermore, the present invention relates to a process for the production of the inventive rare earth element containing zeolitic material as well as to the use of the inventive rare earth element containing zeolitic material.

Abstract: Described herein is a process for producing a zeolitic material having an MWW framework structure containing YO2 and B2O3, in which Y stands for a tetravalent element. The process includes the steps of (i) preparing a mixture containing one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (ii) crystallizing the mixture obtained in (i) for obtaining a layered precursor of the MWW framework structure, and (iii) calcining the layered precursor obtained in (ii) for obtaining the zeolitic material having an MWW framework structure. Also disclosed herein are synthetic boron-containing zeolites obtain by the process and uses thereof.

Abstract: The present invention relates to a process for the preparation of a zeolitic material SiO2 and X2O3 in its framework structure, wherein X stands for a trivalent element, wherein said process comprises interzeolitic conversion of a first zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein the first zeolitic material has an FER-, TON-, MTT-, BEA-, MEL-, MWW-, MFS-, and/or MFI-type framework structure to a second zeolitic material comprising SiO2 and X2O3 in its framework structure, wherein the second zeolitic material obtained in (2) has a different type of framework structure than the first zeolitic material. Furthermore, the present invention relates to a zeolitic material per se as obtainable and/or obtained according to the inventive process and to its use, in particular as a molecular sieve, as an adsorbent, for ion-exchange, or as a catalyst and/or as a catalyst support.

Abstract: A process for preparing a zeolitic material having an AEI-type framework structure having SiO2 and X2O3 in its framework, X standing for a trivalent element, may involve: (1) preparing a mixture of structure directing agent(s) and a first zeolitic material with SiO2 and X2O3 in its framework, the first zeolitic material having a FER, TON, MTT, FAU, GIS, MOR, BEA, MFI, and LTA framework; (2) heating the mixture to obtain a second zeolitic material having an AEI-type framework with SiO2 and X2O3 in its framework; (3) optionally calcining the second zeolitic material; (4) optionally subjecting the zeolitic material from (2) or (3) to ion-exchange, preferably ion-exchanging ionic extra-framework element(s) in the zeolite framework for H+ and/or NH4+; (5) calcining the zeolitic material from (2), (3), or (4) at greater than 600 to 900° C., the calcining atmosphere containing less than 10 vol.-% of H2O. Such zeolites can convert oxygenates to olefins.

Abstract: A zeolitic material having framework type CHA, comprising a transition metal M and an alkali metal A, and having a framework structure comprising a tetravalent element Y, a trivalent element X and O, wherein the transition metal M is a transition I metal of groups 7 to 12 of the periodic table, A is one or more of K and Cs, Y is one or more of Si, Ge, Ti, Sn and Zr, and X is one or more of Al, B, Ga and In. A process for preparing such a zeolitic material. Use of such a zeolitic material.

Abstract: The present invention relates to a rare earth element containing zeolitic material having a framework structure selected from the group consisting of AEI, AFT, AFV, AFX, AVL, CHA, EMT, GME, KFI, LEV, LTN, and SFW, including mixtures of two or more thereof, the framework structure of the zeolitic material comprising SiO2 and X2O3, wherein X stands for a trivalent element, wherein the zeolitic material displays an SiO2:X2O3 molar ratio in the range of from 2 to 20, and wherein the zeolitic material contains one or more rare earth elements as counter-ions at the ion exchange sites of the framework structure. Furthermore, the present invention relates to a process for the production of the inventive rare earth element containing zeolitic material as well as to the use of the inventive rare earth element containing zeolitic material as such and as obtainable and/or obtained according to the inventive process.

Abstract: A process for preparing a porous oxidic material with micropores and mesopores and a zeolitic material having an AEI framework with a tetravalent element Y, a trivalent element X and oxygen, the micropores having a pore diameter determined by nitrogen adsorption-desorption at 77 K of less than 2 nm and the mesopores having a pore diameter of from 2 to 50 nm, the process involving subjecting a synthesis mixture to hydrothermal crystallization at a crystallization temperature of from 90 to 200° C., to obtain a mother liquor containing the porous oxidic material having the zeolitic AEI framework.

Abstract: Provided is a crystalline layered silicate, having an X-ray diffraction pattern comprising reflections at 2-theta values of (5.3±0.2)°, (8.6±0.2)°, (9.8±0.2)°, (21.7±0.2)° and (22.7±0.2). Also provided are a process for preparing the crystalline layered silicate and uses of the layered silicate. The process comprises steps of: (i) preparing a synthesis mixture comprising water, a source of Si, and a structure directing agent comprising a diethyldimethylammonium compound; (ii) subjecting the synthesis mixture obtained from (i) to hydrothermal synthesis conditions comprising heating the synthesis mixture obtained from (i) to a temperature in the range of from 110 to 180° C. and keeping the synthesis mixture at a temperature in this range under autogenous pressure for 1 to 6 days, obtaining a mother liquor comprising the crystalline layered silicate.

Abstract: A process for preparing a zeolitic material comprising Ti, having framework type CHA and having a framework structure which comprises Si and O, said process comprising (i) preparing a pre-synthesis mixture comprising water, a CHA framework structure directing agent, and a zeolitic material comprising Ti, having framework type MFI and having a framework structure which comprises Si and O; (ii) removing water from the pre-synthesis mixture obtained from (i) by heating the pre-synthesis mixture to a temperature of less than 100° C. at a pressure of less than 1 bar (abs); (iii) hydrothermally crystallizing the zeolitic material comprising Ti, having framework type CHA and having a framework structure which comprises Si and O.

Abstract: A process for preparing a zeolitic material containing YO2 and X2O3, where Y and X represent a tetravalent element and a trivalent element, respectively, is described. The process includes (1) a step of preparing a mixture containing one or more structure directing agents, seed crystals, and a first zeolitic material containing YO2 and X2O3 and having FAU-, GIS-, MOR-, and/or LTA-type framework structures; and (2) a step of heating the mixture for obtaining a second zeolitic material containing YO2 and X2O3 and having a different framework structure than the first zeolitic material. The mixture prepared in (1) and heated in (2) contains 1000 wt % or less of H2O based on 100 wt % of YO2 in the framework structure of the first zeolitic material. A zeolitic material obtainable and/or obtained by the process and its use are also described.

Abstract: A process for preparing a zeolitic material having a framework structure type RTH and having a framework structure comprising a tetravalent element Y, a trivalent element X and oxygen, said process comprising (i) preparing a synthesis mixture comprising a zeolitic material having a framework structure type FAU and having a framework structure comprising the tetravalent element Y, the trivalent element X and oxygen, water, a source of a base, and an RTH framework structure type directing agent comprising a N-methyl-2, 6-dimethylpyridinium cation containing compound; (ii) subjecting the mixture obtained in (i) to hydrothermal crystallization conditions, obtaining the zeolitic material having a framework structure type RTH

Abstract: Described herein is a process for producing a zeolitic material having an MWW framework structure containing YO2 and B2O3, in which Y stands for a tetravalent element. The process includes the steps of (i) preparing a mixture containing one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (ii) crystallizing the mixture obtained in (i) for obtaining a layered precursor of the MWW framework structure, and (iii) calcining the layered precursor obtained in (ii) for obtaining the zeolitic material having an MWW framework structure. Also disclosed herein are synthetic boron-containing zeolites obtain by the process and uses thereof.

Abstract: The present invention relates to a process for the production of a boron-containing zeolitic material having an MWW framework structure comprising YO2 and B2O3, wherein Y stands for a tetravalent element, wherein said process comprises (a) providing a mixture comprising one or more sources for YO2, one or more sources for B2O3, one or more organotemplates, and seed crystals, (b) crystallizing the mixture obtained in (a) for obtaining a layered precursor of the boron-containing MWW-type zeolitic material, (c) calcining the layered precursor obtained in (b) for obtaining the boron-containing zeolitic material having an MWW framework structure, wherein the one or more organotemplates have the formula (I) R1R2R3N??(I) wherein R1 is (C5-C8)cycloalkyl, and wherein R2 and R3 are independently from each other H or alkyl, as well as to a synthetic boron-containing zeolite which is obtainable and/or obtained according to the inventive process as well as to its use.

Abstract: Provided are a process for the preparation of an iron containing zeolitic material having an AEI framework structure using a quaternary phosphonium cation, as well as an iron containing zeolitic material per se as obtainable or obtained according to the process. Furthermore, an exhaust gas treatment system comprising the iron containing zeolitic material and the use of the iron containing zeolitic material as a catalyst are provided.