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: 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: 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: 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.

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 0, wherein the transition metal M is a transition 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: A composition comprising a support material which comprises silicon carbide on the surface of which a zeolitic material of the AEI/CHA family is supported, wherein at least 99 weight-% of the framework structure of the zeolitic material consist of a tetravalent element Y which is one or more of Si, Ge, Ti, Sn and V; a trivalent element X which is one or more of Al, Ga, In, and B; O; and H.

Abstract: The present invention relates to a process for the production of a zeolitic material having a BEA-type framework structure comprising YO2 and X2O3, wherein said process comprises the steps of (1) preparing a mixture comprising one or more sources for YO2 and one or more sources for X2O3; (2) crystallizing the mixture obtained in step (1); (3) subjecting the zeolitic material having a BEA-type framework structure obtained in step (2) to an ion-exchange procedure with Cu; and (4) subjecting the Cu ion-exchanged zeolitic material obtained in step (3) to an ion-exchange procedure with Fe; wherein Y is a tetravalent element, and X is a trivalent element, wherein the mixture provided in step (1) and crystallized in step (2) further comprises seed crystals comprising one or more zeolitic materials having a BEA-type framework structure, and wherein the mixture provided in step (1) and crystallized in step (2) does not contain an organotemplate as a structure-directing agent, as well as to the zeolitic material having

Abstract: The present invention relates to a method for the preparation of a treated zeolitic material having a BEA framework structure including the steps of: (i) providing a zeolitic material having a BEA framework structure, wherein the BEA framework structure includes 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.

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: The present invention relates to a process for preparing at least one sheet silicate comprising Ga and/or Zn, and based thereon, a framework silicate, preferably of the RRO structure type, to the sheet silicate and framework silicate themselves and to the uses of the silicates, especially of the framework silicate, preferably as catalysts.

Abstract: 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.

Abstract: The present invention relates to a process for the production of a zeolitic material having a BEA-type framework structure comprising YO2 and X2O3, wherein said process comprises the steps of (1) preparing a mixture comprising one or more sources for YO2 and one or more sources for X2O3; (2) crystallizing the mixture obtained in step (1); (3) subjecting the zeolitic material having a BEA-type framework structure obtained in step (2) to an ion-exchange procedure with Cu; and (4) subjecting the Cu ion-exchanged zeolitic material obtained in step (3) to an ion-exchange procedure with Fe; wherein Y is a tetravalent element, and X is a trivalent element, wherein the mixture provided in step (1) and crystallized in step (2) further comprises seed crystals comprising one or more zeolitic materials having a BEA-type framework structure, and wherein the mixture provided in step (1) and crystallized in step (2) does not contain an organotemplate as a structure-directing agent, as well as to the zeolitic material having

Abstract: A process for the production of a zeolitic material having an LEV-type framework structure comprising YO2 and optionally comprising X203, wherein said process comprises preparing a mixture comprising one or more sources for YO2, one or more solvents, and optionally comprising seed crystals; and crystallizing the mixture; wherein Y is a tetravalent element, and X is a trivalent element, and wherein the crystallized mixture contains 0.1 wt.-% or less, more preferably 0.01 wt.-% or less of one or more metals M based on 100 wt.-% of YO2, wherein even more preferably the crystallized mixture contains no metal M, wherein M stands for sodium and/or potassium, wherein preferably M stands for the group of alkali and alkaline earth metals.