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 silanois, the empirical formula 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:
La presente invención se relaciona con un proceso que modifica las propiedades de Zeolitas del tipo Faujasita Y, empleadas como base de catalizadores para el proceso FCC, de interés en la industria de la refinación del petróleo, en el cual se realiza la conversión de fracciones pesadas en fracciones más ligeras de alto valor comercial. En una sola etapa produce: una Zeolita de tipo Faujasita Y modificada, con un contenido de sodio menor que el de la Zeolita de tipo Faujasita Y de origen, hasta en un 75 %; y un material mesoporoso asociado a la Zeolita de tipo Faujasita Y modificada, con un tamaño promedio de poros de 2 a 100 nm, en donde los materiales producidos presentan una distribución bimodal o multimodal de poros, y la proporción de Zeolita de tipo Faujasita Y modificada, respecto al material mesoporoso asociado a dicha Zeolita, se regula mediante las condiciones de operación del proceso.
摘要:
This invention relates to a new family of crystalline microporous zeolite designated the UZM-29 family. These zeolites are represented by the empirical formula: M m n+ R + rAl l-x E x Si y O z UZM-29 has the PHI structure type topology but is thermally stable up to a temperature of at least 350°C. The UZM-29 family of zeolite can be used in various hydrocarbon conversion processes such as, isomerization of butane.
摘要翻译:本发明涉及一种称为UZM-29族的新型结晶微孔沸石系列。 这些沸石由经验式表示:Mm n + R + rAll-x ExSiyOz UZM-29具有PHI结构类型拓扑,但在至少350℃的温度下是热稳定的。 UZM-29沸石系列可用于各种烃转化过程,如丁烷异构化。
摘要:
The present invention is directed to a new crystalline molecular sieve designated SSZ-79 synthesized using 1,8-dimethyl-1,4,8,11-tetraazacyclotetradecane or 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane as a structure directing agent.
摘要:
L'invention concerne un solide cristallisé, désigné sous l'appellation EV1-20, lequel présente un diagramme de diffraction de rayons X tel que donné ci-dessous. Ledit solide présente une composition chimique exprimée selon la formule empirique mX0 2 : nGeO 2 : pZ 2 O 3 : qR : sF : wH 2 0, où R représente une ou plusieurs espèce(s) organique(s), X représente un ou plusieurs élément(s) tétravalent(s) différent(s) du germanium, Z représente au moins un élément trivalent et F est le fluor.
摘要翻译:本发明涉及由EV1-20表示的结晶固体,其具有如下所示的X射线衍射图。 所述固体具有由经验式mX02:nGeO 2:pZ 2 O 3:qR:sF:wH 2 O表示的化学组成,其中R是一种或多种有机物质,X是与锗不同的一种或多种四价元素,Z至少为 一个三价元素,F是氟。
摘要:
A process for the preparation of a copper containing zeolitic material having CHA framework structure and a composition comprising the molar ratio (n YO 2 ) : X 2 O 3 wherein X is a trivalent element, preferably Al, Y is a tetravalent element, preferably Si, and wherein n is preferably at least 20, the process comprising the preparation of an phosphor-free aqueous solution containing at least one source for X 2 O 3 and at least one source for YO 2 , at least one structure directing agent suitable for the preparation of a zeolitic material having CHA framework structure, and at least one Cu source, and the process further comprising the hydrothermal crystallization of said aqueous solution obtaining a suspension containing the copper containing zeolitic material having CHA framework structure.
摘要翻译:一种制备具有CHA骨架结构的含铜沸石材料和包含摩尔比(n YO 2):X 2 O 3的组合物的方法,其中X是三价元素,优选Al,Y是四价元素,优选Si,其中n 优选至少为20,该方法包括制备含有至少一种X 2 O 3源和至少一种YO源的无磷水溶液,至少一种适于制备具有CHA骨架的沸石材料的结构导向剂 结构和至少一个Cu源,并且所述方法还包括所述水溶液的水热结晶,得到含有具有CHA骨架结构的含铜沸石材料的悬浮液。
摘要:
L'invention concerne un solide cristallisé, désigné sous l'appellation IM-18, lequel présente un diagramme de diffraction de rayons X tel que donné ci-dessous. Ledit solide présente une composition chimique exprimée selon la formule empirique mXO 2 : nGeO 2 : PZ 2 O 3 : qR : sF : wH 2 O, où R représente une ou plusieurs espèce(s) organique(s), X représente un ou plusieurs élément(s) tétravalent(s) différent(s) du germanium, Z représente au moins un élément trivalent et F est le fluor.
摘要:
The invention relates to a method for the treatment of at least one zeolite having a pore size of less than or equal to 7 Å, comprising at least a) a step involving the dealumination of the zeolite, b) a step involving cation exchange with at least one cation other than H + , c) a step involving the treatment of the zeolite obtained in step (b) in the presence of at least one molecular compound containing at least one silicon atom, and d) at least one heat treatment step. The invention also relates to the preparation of a catalyst containing the zeolite treated using the inventive treatment method and to the use of said catalyst in a method for the oligomerisation of an olefin feed containing hydrocarbon molecules having between 2 and 12 carbon atoms per molecule.
摘要:
This invention relates to a process for making a germanium- zeolite. The zeolite is preferably a MFI-type structure, most preferably a ZSM-5 MFI zeolite. The germaniumzeolite is synthesized from an aqueous gel containing a silica source, a germanium source, an aluminum source and a structure directing agent in the presence of an acid to control the pH of the gel in the range of 6.5 to 13.5, preferably 7.5 to 11, to maximize the amount of germanium incorporated into the zeolite framework. Optionally, a sodium compound may be introduced into the reaction mixture gel either before or after the addition of the acid, preferably before.