Abstract: The present invention relates to a process for the conversion of propylene oxide to 1-amino-2-propanol and/or di(2-hydroxypropyl)amine comprising (i) providing a catalyst comprising a zeolitic material comprising YO2 and optionally comprising X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material has a framework-type structure selected from the group consisting of MFI and/or MEL, including MEL/MFI intergrowths; (ii) providing a mixture in the liquid phase comprising propylene oxide and ammonia; (iii) contacting the catalyst provided in (i) with the mixture in the liquid phase provided in (ii) for converting propylene oxide to 1-amino-2-propanol and/or di(2-hydroxypropyl)amine.

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: The present invention relates to a process for the production of 2,2,6,6-tetramethyl-4-piperidone particularly comprising (i) providing a reactor containing a catalyst comprising a zeolitic material having a framework structure of FAU, wherein the zeolitic material comprises YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material has an YO2 to X2O3 molar ratio of 16 to 175; (ii) preparing a reaction mixture comprising acetone and ammonia; (iii) contacting the catalyst in the reactor with the reaction mixture prepared in (ii) at a temperature in the range of from 40 to 250° C. for obtaining a reaction product comprising 2,2,6,6-tetramethyl-4-piperidone; wherein the mixture prepared in (ii) and contacted with the catalyst in (iii) contains less than 10 weight-% of water based on 100 weight-% of the reaction mixture.

Abstract: A chemical molding comprising a zeolitic material which exhibits a type I nitrogen adsorption/desorption isotherm determined as described in Reference Example 1, and which has framework type MFI and a framework structure comprising Si, O, and Ti, the molding further comprising a binder for said zeolitic material, the binder comprising Si and O, wherein the molding exhibits a total pore volume of at least 0.4 mL/g and a crushing strength of at least 6 N.

Abstract: Use of an acid-treated titanium-containing zeolitic material having framework type MWW for preparing a composition having a relative plasticity of less than 1.

Abstract: The present invention relates to a process for the dimerization of alkenes comprising (1) providing a gas stream comprising one or more alkenes; and (2) contacting the gas stream provided in (1) with a catalyst for obtaining a mixture M1 comprising one or more dimerization products of the one or more alkenes, wherein the catalyst in (2) comprises a zeolitic material having a framework structure type selected from the group consisting of MOR, BEA, FER, MFI, TON, FAU, and mixtures of two or more thereof, wherein the framework structure of the zeolitic material comprises YO2, wherein Y stands for one or more tetravalent elements.

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: A process for preparing an extrudable composition comprising a titanium-containing zeolitic material having framework type MWW, the process comprising providing a titanium-containing zeolitic material having framework type MWW, having a water absorption capacity of at least 11 weight-%, subjecting the titanium-containing zeolitic material having framework type MWW an acid treatment, optionally incorporating zinc in the acid-treated titanium-containing zeolitic material having framework type MWW; preparing a composition comprising the titanium-containing zeolitic material having framework type MWW obtained from (ii) or (iii), a precursor of a silica binder, water, and a kneading agent, wherein the composition does not comprise a polyethylene oxide.

Abstract: The present disclosure relates to a process for the preparation of a zeolitic material having a CHA-type framework structure comprising YO2 and X2O3, wherein the process comprises: (1) providing a mixture comprising one or more sources for YO2, one or more sources for X2O3, one or more tetraalkylammonium cation R1R2R3R4N+-containing compounds, and one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent; (2) crystallizing the mixture to obtain a zeolitic material having a CHA-type framework structure; wherein Y is a tetravalent element and X is a trivalent element, wherein R1, R2, R3, R5, R6, and R7 independently from one another stand for alkyl, wherein R4 stands for CnH2nOH with n=1 to 6, and wherein R8 stands for cycloalkyl.

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: The present disclosure relates to a process preparing a zeolitic material having an AEI-type framework structure, wherein the framework structure comprises SiO2 and X2O3 and X is a trivalent element, and wherein the process comprises: (1) preparing a mixture comprising one or more cationic structure directing agents comprising a heterocyclic amine ring, seed crystals, and a first zeolitic material comprising SiO2 and X2O3 in its framework structure and having an FAU-type framework structure; and (2) heating the mixture to obtain a second zeolitic material comprising SiO2 and X2O3 in its framework structure and having an AEI-type framework structure.

Abstract: Traditionally, when a feature is updated or a new feature is released, the feature undergoes internal testing and validation before external distribution. However, some features may receive proportionately less internal usage than customer usage reflected externally. Low internal usage of features can lead to weak telemetry data, which can allow code regressions (e.g., bugs) to go undetected until the features are released to customers. Accordingly, accelerated internal feature usage is provided to mirror external customer usage. Highly used features are dynamically identified and, any deficiencies in internal feature usage are identified. Tenant sites estimated to generate at least a portion of the deficiency in feature usage are identified. These sites may be migrated or replicated to internal validation rings to generate additional internal feature usage.

Abstract: The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation con

Abstract: A molding, comprising a zeolitic material having framework type MFI wherein from 98 to 100 weight-% of the zeolitic material consist of Ti, Si, O, and H, and wherein the zeolitic material having framework type MFI exhibits a type IV nitrogen adsorption/desorption isotherm, the molding further comprising a silica binder, wherein the molding has a pore volume of at least 0.8 mL/g.

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: Disclosed herein is a continuous process for preparing zeolitic material with a CHA-type framework structure comprising SiO2 and X2O3 and the zeolitic material so-obtained. The processes comprises (i) preparing a mixture comprising one or more sources of SiO2, one or more sources of X2O3, seed crystals, one or more tetraalkylammonium cation R5R6R7R8N+-containing compounds as structure directing agent, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity; and (iii) crystallizing the zeolitic material with a CHA-type framework structure from the mixture in the continuous flow reactor.