摘要:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).
摘要:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).
摘要:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).
摘要翻译:本发明涉及一种制备至少包含硅和氧的硅酸盐的方法,其包括(1)将二氧化硅和/或二氧化硅前体与包含至少一种包含R 1个R 2 R 3 N 3 R 4 N +和/或以上至少一个碱,其中R R 1和R 2都是甲基,R 3和R 4都是正丙基; (2)将根据(1)获得的胶体溶液在大气压下加热到大于压力下的胶体溶液的沸点至180℃的温度范围内,得到至少包含至少 一种硅酸盐,其中在(1)中加入至少含有硅和氧的硅酸盐作为结晶助剂。
摘要:
A process for the production of a zeolitic material having an LEV-type framework structure comprising YO2 and optionally comprising X203, wherein said process comprises preparing a mixture comprising one or more sources for YO2, one or more solvents, and optionally comprising seed crystals; and crystallizing the mixture; wherein Y is a tetravalent element, and X is a trivalent element, and wherein the crystallized mixture contains 0.1 wt.-% or less, more preferably 0.01 wt.-% or less of one or more metals M based on 100 wt.-% of YO2, wherein even more preferably the crystallized mixture contains no metal M, wherein M stands for sodium and/or potassium, wherein preferably M stands for the group of alkali and alkaline earth metals.
摘要翻译:一种制备具有包含YO 2和任选地包含X 2 O 3的LEV型骨架结构的沸石材料的方法,其中所述方法包括制备包含一种或多种YO 2,一种或多种溶剂和任选地包含晶种的源的混合物; 并使混合物结晶; 其中Y是四价元素,X是三价元素,并且其中所述结晶混合物含有基于100重量%的0.1重量%或更少,更优选0.01重量%或更少的一种或多种金属M, 的YO 2,其中甚至更优选结晶的混合物不含金属M,其中M代表钠和/或钾,其中优选M代表碱金属和碱土金属。
摘要:
The present invention relates to a process for the preparation of a zeolitic material having a CHA framework structure, said zeolitic material comprising zeolite crystals having a core-shell structure, wherein said process comprises the steps of (1) providing a mixture comprising one or more sources for Z2O5, one or more sources for X2O3, optionally one or more structure directing agents, and seed crystals having a CHA framework structure, wherein the CHA framework structure of the seed crystals comprises YO2, X2O3, and optionally Z2O5, and wherein the seed crystals have a diameter of 450 nm or greater; (2) crystallizing the mixture provided in (1) to afford zeolite crystals comprising a core of seed crystal provided in step (1) and a shell crystallized on the seed crystal; wherein Z is a pentavalent element, Y is a tetravalent element, and X is a trivalent element.
摘要翻译:本发明涉及一种制备具有CHA骨架结构的沸石材料的方法,所述沸石材料包含具有核 - 壳结构的沸石晶体,其中所述方法包括以下步骤:(1)提供包含一种或多种 Z 2 O 5的源,X 2 O 3,任选的一种或多种结构导向剂的一种或多种来源,以及具有CHA骨架结构的晶种,其中晶种的CHA骨架结构包含YO 2,X 2 O 3和任选的Z 2 O 5,并且其中所述种子 晶体的直径为450nm以上; (2)使(1)中提供的混合物结晶,得到包含步骤(1)中提供的晶种核心的沸石晶体和在晶种上结晶的壳; 其中Z为五价元素,Y为四价元素,X为三价元素。
摘要:
The present invention relates to 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 YO2 and optionally comprises X2O3, 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.
摘要翻译:本发明涉及一种有机化合物的烷基化方法,包括:(a)提供包含一种或多种具有BEA骨架结构的沸石材料的催化剂,其中所述BEA骨架结构包含YO 2并且任选地包含X 2 O 3,其中Y是 四价元素,X是三价元素,(b)在一个或多个烷基化剂存在下,在一个或多个烷基化剂存在下使催化剂与一种或多种可烷基化的有机化合物接触,以获得一种或多种烷基化有机化合物,其中所述一种或多种烷基化有机化合物, 更多的沸石材料可以从不使用有机模板作为结构导向剂的合成方法获得。
摘要:
The present invention relates to a process for the preparation of a zeolitic material having a BEA framework structure comprising the steps of: (i) providing one or more zeolitic materials having a BEA framework structure, wherein the BEA framework structure comprises YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element; (ii) subjecting the one or more zeolitic materials provided in step (i) to a procedure for removing at least a portion of X, preferably tetrahedrally coordinated X, from the BEA framework structure; wherein the Y:X molar ratios of the one or more zeolitic materials provided in step (i) are respectively comprised in the range of from 1 to 50.
摘要翻译:本发明涉及一种制备具有BEA骨架结构的沸石材料的方法,包括以下步骤:(i)提供一种或多种具有BEA骨架结构的沸石材料,其中BEA骨架结构包含YO 2和X 2 O 3,其中 Y是四价元素,X是三价元素; (ii)使步骤(i)中提供的一种或多种沸石材料从BEA骨架结构中除去至少一部分X,优选四面体配位的X的步骤; 其中步骤(i)中提供的一种或多种沸石材料的Y:X摩尔比分别在1至50的范围内。
摘要:
The present invention relates to 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 YO2 and optionally comprises X2O3, 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.
摘要翻译:本发明涉及一种有机化合物的烷基化方法,包括:(a)提供包含一种或多种具有BEA骨架结构的沸石材料的催化剂,其中所述BEA骨架结构包含YO 2并且任选地包含X 2 O 3,其中Y是 四价元素,X是三价元素,(b)在一个或多个烷基化剂存在下,在一个或多个烷基化剂存在下使催化剂与一种或多种可烷基化的有机化合物接触,以获得一种或多种烷基化有机化合物,其中所述一种或多种烷基化有机化合物, 更多的沸石材料可以从不使用有机模板作为结构导向剂的合成方法获得。
摘要:
The present invention relates to a process for the preparation of an isomorphously substituted RUB-36 silicate comprising (1) providing a mixture containing silica, preferably amorphous silica, and/or at least one silica precursor, water, at least one suitable structure directing agent, (2) heating the mixture obtained according to (1) under hydrothermal conditions to give a suspension containing an RUB-36 silicate, (3) separating the RUB-36 silicate, wherein (a) either the mixture according to (1) contains at least one element suitable for isomorphous substitution and/or (b) the separated RUB-36 silicate according to (3) is subjected to isomorphous substitution.