摘要:
Es wird ein partikuläres Material sowie ein Verfahren zu seiner Herstellung bereit gesteilt, das zeolithische Partikel mit kristallinem Aufbau umfasst, die als Hauptkomponente ein Zeolithmaterial mit einer aus Si, O und gegebenenfalls AI gebildeten zeolithischen Gerüststruktur und/oder ein zeolithähnliches Material mit einer zeolithischen Gerüststruktur, die nicht nur aus Si, O und gegebenenfalls AI gebildet ist, enthalten, wobei die zeolithischen Partikel als im Wesentlichen sphärische Partikel mit Nanometerdimensionen vorliegen.
摘要:
Crystalline molecular sieves and their synthesis using quaternary N-methyl-diisoalkylammonium cations as organic structure directing agents are disclosed. The structure directing agent has the following structure (1): in which R 1 is selected from hydrogen, a methyl group, an ethyl group, a propyl group, and a hydroxymethyl group; and R 2 , R 3 , R 4 and R 5 are independently selected from a methyl group, an ethyl group, and a propyl group.
摘要:
This invention refers to a microporous crystalline material of zeolitic nature that has, in its calcined state and in the absence of defects in its crystalline matrix manifested by the presence of silanols, the empirical formula x (M1/nXO2): y YO2: g GeO2: (1-g) SiO2 in which M is selected between H+, at least one inorganic cation of charge +n, and a mixture of both, X is at least one chemical element of oxidation state +3, Y is at least one chemical element with oxidation state +4 different from Si, x takes a value between 0 and 0.2, both included, y takes a value between 0 and 0.1, both included, g takes a value between 0 and 0.5, both included that has been denoted ITQ-55, as well as a method for its preparation. This invention also relates to uses of the crystalline material of zeolitic nature for adsorption of fluid components, membrane separation of fluid components, storage of fluid components, and catalysis of various conversion reactions.
摘要:
A zeolite material is provided having non-boron heteroatoms on the external surface of the zeolitic material lattice framework and B heteroatoms, or silanols created from boron hydrolysis, throughout the remainder of the lattice framework. The lattice framework of the zeolite material comprises large pore 12 member ring or larger openings at the external surface of the framework, and 10 member ring or smaller openings beneath the external surface large pore openings. Also provided is a process for preparing the zeolitic material.
摘要:
The present invention relates to a process for the production of a zeolitic material having a framework structure comprising YO2, wherein said process comprises: (1) preparing a mixture comprising one or more tetravalent elements Y in elemental form, one or more organic hydroxide salts, and one or more protic solvents; (2) reacting the mixture obtained in step (1) for converting at least part of the one or more tetravalent elements Y into an oxidic form thereof containing one or more Y-O single bonds and/or one or more Y=O double bonds; and (3) crystallizing a zeolitic material from the mixture obtained in step (2).
摘要:
The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof.
摘要:
A new synthesis technique has been developed to prepare a family of coherently grown composites of at least two zeotypes. Examples of these composites are represented by the empirical formula. Na n M m k+ T t Al 1-x E x Si y O z where "n" is the mole ratio of Na to (Al + E), M represents at least one metal of zinc, Group 1, Group 2, Group 3 and the lanthanide series of the periodic table, and any combination thereof, "m" is the mole ratio of M to (Al + E), "k" is the average charge of the metal or metals M, T is the organic structure directing agent or agents, "t" is the mole ratio of N from the organic structure directing agent or agents to (Al + E), and E is a framework element such as gallium. The synthesis technique is the Layered Conversion Synthesis technique.
摘要:
MFI-type molecular sieves, including aluminosilicate ZSM-5, borosilicate-ZSM-5, and silicalite-1, having a small crystal size are prepared from a reaction mixture either in the presence or absence of an alkali/alkaline metal component. The small crystal forms of ZSM-5 thus prepared are useful, for example, as catalysts in various hydrocarbon conversion processes.
摘要:
MFI-type molecular sieves, including aluminosilicate ZSM-5, borosilicate-ZSM-5, and silicalite-1, having a small crystal size are prepared from a reaction mixture either in the presence or absence of an alkali/alkaline metal component. The small crystal forms of ZSM-5 thus prepared are useful, for example, as catalysts in various hydrocarbon conversion processes.