Abstract:
The present invention relates to a pillared silicate compound comprising a layered silicate structure, and bridging metal atoms located between adjacent silicate layers of the silicate structure, wherein said bridging metal atoms form at least one covalent bond to each of the adjacent silicate layers, as well as a process for the preparation of a pillared silicate compound, and further includes a pillared silicate compound obtainable and or obtained according to said process, as well as a method of catalyzing a chemical reaction comprising the step of contacting one or more chemical compounds with the any of the aforementioned pillared silicate compounds.
Abstract:
Zeolitic materials of the LEV-type structure and methods for their production are provided. The method for producing of the zeolitic material having an LEV-type structure comprising Y0 2 and optionally comprising X 2 O 3 comprises the steps of: (1) preparing a mixture comprising one or more sources for Y0 2 , one or more solvents, and optionally comprising seed crystals; and (2) crystallizing the mixture obtained in step (1), wherein Y is a tetravalent element, and X is a trivalent element, the mixture crystallized in step (2) contains 3 wt.-% or less of one or more metals M based on 100 wt-% of Y0 2 , even more preferably contains no metal M, wherein M stands for sodium or potassium.
Abstract:
The present invention relates to a process for the preparation of a silicate compound, comprising (1) providing at least one layered silicate; and (2) mixing said layered silicate with water and at least one silicon containing compound according to formula R 4-m Si[-(SiR 2 ) n -R] m wherein at least one residue R is a leaving group and none of the residues R contains Si; m is 0, 1, 2, 3, or 4; and n is an integer greater than or equal to 0.
Abstract:
Disclosed is a process for the alkylation of an organic compound comprising: (a) providing a catalyst comprising one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO 2 and optionally comprises X 2 O 3 , wherein Y is a tetravalent element, and X is a trivalent element, (b) contacting the catalyst with one or more alkylatable organic compounds in the presence of one or more alkylating agents in one or more reactors for obtaining one or more alkylated organic compounds, wherein the one or more zeolitic materials is obtainable from a synthetic process which does not employ an organotemplate as structure directing agent.
Abstract:
The present invention relates to a process for the production of a pillared silicate comprising: (i) providing a layered silicate; (ii)interlayer expanding the layered silicate provided in step (i) comprising a step of treating the layered silicate with one or more swelling agents; (iii)treating the interlayer expanded silicate obtained in step (ii) with one or more hydrolyzable silicon containing compounds; (iv)treating the interlayer expanded compound obtained in step (iii) with an aqueous solution to obtain a pillared silicate; (v)removing at least a portion of the one or more swelling agents from the pillared silicate obtained in step (iv); (vi) impregnating the pillared silicate obtained in step (v) with one or more elements selected from the group consisting of Fe, Ru, Ir, and combinations of two or more thereof, as well as to a pillared silicate optionally obtainable from said process and its use, in particular in a process for the production of one or more olefins according to the invention.