摘要:
The invention relates to a method of separating the components of a mixture. The inventive method is characterised in that it comprises the following steps: (a) the bringing into contact of the components of a mixture selected from (i) at least two hydrocarbons, (ii) a mixture containing at least nitrogen and oxygen, and (iii) at least one hydrocarbon and water, with an ITQ-29 zeolite material having a T(IV)/T(III) ratio of greater than 7, whereby T(IV) denotes one or more tetravalent elements and T(III) denotes one or more trivalent elements; (b) preferential adsorption of one or more of the components by the ITQ-29 zeolite material and (c) recovery of one or more of the components, preferably for the separation of hydrocarbon mixtures, such as linear or branched olefins from paraffins.
摘要:
The present invention refers to a crystalline material that does not contain fluorides, with a composition in a roasted state corresponding to that of the material called ITQ-17 and that has a composition on an anhydrous base and in terms of oxide moles upon being synthesized, unroasted, represented by: xX2O3:(1−z)YO2:zGeO2:r/nRnO wherein: X is at least one trivalent element, Y is one or more tetravalent elements other than germanium, R is an organic structure directing compound, preferably the cation 1-methyl-4-aza,1-azoniumbicyclo[2.2.2]octane (DABMe+) or the cation 1,4-bis[N-(4-aza,1-azoniumbicyclo[2.2.2]octane)methyl]benzene (d-DABBz)+2 x varies between 0 and 0.02, z is comprised between 0.02 and 0.67, r varies between 0.01 and 0.5, and n is 1 or 2. It also refers to a process for synthesizing said material, as well as to the material obtained by said process and subjected to a step of post-synthesis to eliminate the organic component from its structure.
摘要翻译:本发明涉及不含氟化物的结晶材料,其组成为与称为ITQ-17的材料相当的焙烧状态,其组成为无水碱和合成后的氧化物摩尔数, 未加工的,由以下代表:<?in-line-formula description =“In-line Formulas”end =“lead”?> xX 2 sub> 3(1-z )YO 2:zGeO 2:r / n R n +2X在0和0.02之间变化,z在0.02和0.67之间,r在0.01和0.5之间变化,n是1或2.它也是指sy 使所述材料固化,以及通过所述方法获得的材料,并进行后合成步骤以从其结构中除去有机组分。
摘要:
A new family of stannosilicate molecular sieves which have the zeolite beta structure are disclosed. These molecular sieves have a three dimensional framework structure composed of SnO2 and SiO2 tetrahedral oxide units and at least one of TiO2 or GeO2 tetrahedral oxide units and have an empirical formula of: (SnxTiySi1-x-y-zGez)2 where “x”, “y” and “z” are the mole fractions of tin, titanium and germanium respectively (“y” and “z” are not simultaneously zero). Processes for the selective oxidation of organic compounds with peroxides using the molecular sieves as catalysts is also presented.
摘要:
The invention relates to a method for synthesizing a family of zeolite materials, grouped together under the name ITQ-16, in an OH− medium and in the absence of fluorides and to the catalytic applications thereof. The zeolite ITQ-16 family of materials is characterized by having different proportions of distinct polymorphs A, B and C described as possible intergrowths in the Beta zeolite and, therefore, the X-ray diffraction patterns of said family are different from that described for the Beta zeolite. In its calcinated form, zeolite ITQ-16 has the following empirical formula: x(MXO2):tTO2:gGeO2:(1−g)SiO2, wherein T is one or more elements having +4 oxidation status and different from Ge and Si; X is one or more elements having +3 oxidation status; and M can be H+ or one or more inorganic cations with a +n charge.
摘要:
This invention refers to a new zeolitic material included under the ITQ-16 denomination, to the method for obtaining them and their use as catalysts.This material, ITQ-16 zeolite, is characterized by having different ratios of the different polymorphs A, B and C described as possible intergrowths in Beta zeolite and which, therefore, show different X-ray diffraction patterns to that described for Beta zeolite, showing the X-ray diffraction pattern for ITQ-16, as it is synthesised, diffraction peaks at 2θ angles of 6.9°, 7.4°, and 9.6°, simultaneously.ITQ-16 zeolite in its calcinated form has the following empiric formula: x(M1/nXO2):tTO2:gGeO2:(1−g)SiO2 where T is one or various elements with +4 oxidation status, different of Ge and Si; X is one or various elements with +3 oxidation status and M can be H+ or one or various inorganic cations with charge +n, t is comprised between 0 and 0.1, g is comprised between 0.001 and 0.33 and x is comprised between 0 and 0.2.
摘要:
The invention relates to a microporous crystalline zeolite material which, in the calcined state and in the absence of defects in the crystalline lattice thereof, manifested by the presence of silanols, has empirical formula x(M1/nXO2):yYO2:SiO2, in which M is selected from among H+, at least one inorganic cation with charge +n and a mixture of both; X is at least one chemical element in oxidation state +3; Y is at least one chemical element in oxidation state +4, which is different from Si, x has a value of between 0 and 0.2 inclusive, and y has a value of between 0 and 0.1 inclusive. In addition, as it is synthesised, and in the calcined state, the material has a characteristic X-ray diffraction pattern known as ITQ-32. The invention also relates to the method of preparing said material and to the use thereof.
摘要:
The invention relates to a microporous crystalline zeolite material, zeolite ITQ-28, the production method thereof and the use of same. More specifically, the invention relates to a microporous crystalline zeolite material, ITQ-28, which, in the calcined state and in the absence of defects in the crystalline lattice thereof, manifested by the presence of silanols, is characterised by having empirical formula x (M1/nXO2): y YO2: SiO2, wherein: M is selected from H+, at least one inorganic cation with charge +n, preferably alkalines or alkaline earths, and a mixture of both; X is at least one chemical element in oxidation state +3, preferably Al, Ga, B, Fe, Cr or mixtures thereof; Y is at least a chemical element in oxidation state +4, which is different from Si, preferably Ge, Ti, Sn, V or mixtures of same; x has a value of between 0 and 0.2 inclusive; and y has a value of between 0 and 0.1 inclusive. The invention is further characterised in that the material as it is synthesised has an x-ray diffraction pattern with at least values of angle 2θ (degrees) and the relative intensities given in table 1. The invention also relates to the method of preparing said material and to the use thereof in the conversion of organic compounds.
摘要翻译:本发明涉及微孔结晶沸石材料,沸石ITQ-28,其制备方法及其用途。 更具体地说,本发明涉及一种微孔结晶沸石材料ITQ-28,其在煅烧状态中并且在其不存在其晶格缺陷的情况下,通过硅烷醇的存在而表现出来,其特征在于具有经验式x( M 1 / n 2 XO 2):y Y 2 O 2 SiO 2其中:M选自H 至少一种带电荷的无机阳离子,优选碱金属或碱土金属,以及二者的混合物; X是氧化态+3,优选Al,Ga,B,Fe,Cr或其混合物中的至少一种化学元素; Y至少是氧化态+4的化学元素,其不同于Si,优选Ge,Ti,Sn,V或其混合物; x的值在0和0.2之间; y的值在0和0.1之间。 本发明的特征还在于其合成的材料具有x射线衍射图,其至少具有角度2θ(度)和表1中给出的相对强度。本发明还涉及制备所述材料的方法 以及其在有机化合物的转化中的用途。
摘要:
A microporous crystalline material of a zeolitic nature, that corresponds to the empirical formula x(M1/nXO2):yYO2:zGeO2:(1−z)TO2 wherein x has a value between 0 and 0.2; y has a value between 0 and 0.1; z has a value between 0 and 0.67; being at least one of the z, x and y above zero; M is selected between H+ and inorganic cations with a +n charge; X is at least one chemical element with a +3 oxidation status; Y is at least one chemical element with a +4 oxidation status; and T is at least one chemical element with a +4 oxidation status; and is also characterised by its X-ray diffraction pattern and its microporous properties, and can be employed as a catalyst or oxidating agent in the separation and transformation of organic compounds.
摘要:
The invention relates to a material which, once calcined and in the anhydrous state has general formula x (M1/n XO2):z ZO2:y GeO2:(1−y) SiO2, wherein x has a value of less than 0.2, preferably less than 0.15 and can equal zero; z has a value of between 0 and 0.1, preferably between 0 and 0.05; y has a value of between 0 and 1, preferably between 0 and 0.75; M represents one or more +n charged inorganic cations; X represents one or more +3 oxidation state chemical elements (Al, B, Ga, Fe); and Z represents one or more +4 oxidation state cations different from silicon and germanium, preferably Ti or Sn. Said material can be used as a component of catalysts in acid catalysis processes or as a metal or oxide support in separation and absorption/adsorption processes.
摘要翻译:本发明涉及一旦煅烧并且处于无水状态的材料具有通式x(M1 / n XO2):z ZO 2:y GeO 2:(1-y)SiO 2,其中x的值小于0.2,优选 小于0.15,可以等于零; z的值在0和0.1之间,优选在0和0.05之间; y的值在0和1之间,优选在0和0.75之间; M表示一个或多个带+ n的无机阳离子; X表示一种或多种+3氧化态化学元素(Al,B,Ga,Fe); Z表示与硅和锗不同的一种或多种+4氧化态阳离子,优选为Ti或Sn。 所述材料可用作酸催化方法中的催化剂组分或用作分离和吸收/吸附方法中的金属或氧化物载体。
摘要:
The present invention refers to a microporous crystalline material of zeolitic nature (ITQ-22) which, in the calcined state, has the empirical formula x(M1/nX02):yYO2:zR:wH20wherein M is H+ or at least one inorganic cation of charge +n; X is at least one chemical element of oxidation state +3, preferably selected from the group consisting of Al, Ga, B, Fe and Cr; Y is at least one chemical element with oxidation state +4 other than Si and Ge, preferably selected from the group consisting of Ti, Sn and V; x has a value less than 0.2, preferably less than 0.1 and can take the value zero, y has a value less than 0.1, preferably less than 0.05 and can take the value zero, z has a value less than 0.8, preferably between 0.005 and 0.5 and can take the value zero, with a characteristic X-ray diffraction pattern, to the method of preparation and to the use of the material in separation and transformation processes of organic compounds.