摘要:
A method for synthesizing small crystals of silicoaluminophosphate-34 (SAPO-34) molecular sieves with high structural purity. The method includes first forming a slurry comprising monoisopropanolamine. Then, the slurry is aged to form an aged slurry. Finally, crystallization of silicoaluminophosphate molecular sieves comprising the SAPO-34 molecular sieves is induced from the aged slurry.
摘要:
La presente invención se refiere a un material cristalino que se ha denominado ITQ-51 y que tiene una composición molar en su estado calcinado y anhidro que viene dado por la ecuación: x Si02 : AI 2 O 3 : y P 2 0 5 : z M donde: - M es un elemento, o mezcla de elementos, diferentes a Si, Al y P. - El valor de x está comprendido entre 0 y 1.5, preferentemente entre 0 y 0.8. - El valor de y está comprendido entre 0.3 y 1.6, preferentemente entre 0.6 y 1.3. - El valor de z está comprendido entre 0 y 1.5, preferentemente entre 0 y 0.8.
摘要翻译:本发明涉及一种称为ITQ-51的结晶材料,具有煅烧和无水状态的摩尔组成,对应于以下等式:xSiO 2 :Al 2 O 3:y P 2 O 5:z M其中:M是元素或 元素不同于Si,Al和P; x的值在0和1.5之间,优选在0和0.8之间; y的值在0.3和1.6之间,优选在0.6和1.3之间; 并且z的值在0和1.5之间,优选在0和0.8之间。
摘要:
本发明提供了一种硅磷铝分子筛SAPO-34,其特征在于,无水化学组成为:mDGA·(Si x Al y P z )O 2 ,其中,DGA为二甘醇胺,分布于分子筛笼及孔道中;m为每摩尔(Si x Al y P z )O 2 中二甘醇胺模板剂的摩尔数,m=0.03~0.25;x、y、z分别表示Si、Al、P的摩尔分数,其范围分别是x=0.01~0.30,y=0.40~0.60,z=0.25~0.49,且x+y+z=1。本发明合成的硅磷铝分子筛SAPO-34可用作酸催化反应的催化剂,如甲醇制烯烃反应。本发明还涉及该SAPO-34分子筛在CH 4 、CO 2 吸附分离方面的应用。
摘要:
本发明提供了一种SAPO-35分子筛,其无水化学组成为:mR 1 ·nCh + ·(Si x Al y P z )O 2 ,其中,R 1 为醇胺,Ch + 为胆碱阳离子,分布于分子筛笼及孔道中;m为每摩尔(Si x Al y P z )O 2 中醇胺的摩尔数,n为每摩尔(Si x Al y P z )O 2 中胆碱阳离子的摩尔数,m=0〜0.03,n=0.05〜0.25;x、y、z分别表示Si、Al、P的摩尔分数,其范围分别是x=0.01〜0.30,y=0.35~0.55,z=0.25〜0.49,且x+y+z=1。本发明合成的SAPO-35分子筛可用作酸催化反应的催化剂,如甲醇制烯烃反应。本发明还涉及该SAPO-35分子筛在CH 4 、C〇 2 、N 2 吸附分离方面的应用。
摘要:
A new family of crystalline microporous metallophosphates designated AlPO-57 has been synthesized. These metallophosphates are represented by the empirical formula R + r M m n+ EP x Si y O z where R is an organoammonium cation such as the DEDMA + , M is a divalent framework metal such as an alkaline earth or transition metal, and E is a framework element such as aluminum or gallium. The microporous AlPO-57 compositions are characterized by a new unique ABC-6 net structure and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.
摘要翻译:已经合成了一系列名为AlPO-57的结晶微孔金属磷酸盐系列。 这些金属磷酸盐由经验式R + rMm n + EPxSiyOz表示,其中R是有机铵阳离子,例如DEDMA +,M是二价骨架金属如碱土金属或过渡金属,E是骨架元素如铝或镓 。 微孔AlPO-57组合物的特征在于新的独特的ABC-6网状结构,并且具有用于进行各种烃转化方法和用于分离至少一种组分的分离性能的催化性质。
摘要:
The invention provides methods for making silicoaluminophosphate-34 (SAPO-34) membranes comprising interlocking SAPO-34 crystals. In the methods of the invention, the SAPO-34 membranes are formed through in situ crystallization on a porous support using a synthesis mixture initially including a SAPO-34 forming gel and a plurality of SAPO-34 crystals dispersed in the gel. The invention also provides supported SAPO-34 membranes made by the methods of the invention. The invention also provides methods for separating a first gas component from a gas mixture, the methods comprising the step of providing a membrane of the invention.
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 Y02, 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, and wherein preferably one or more sources for YO2 are further provided in step (1 ).
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 Z 2 O 5 , one or more sources for X 2 O 3 , 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 Y0 2 , X 2 O 3 , and optionally Z 2 O 5 , 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, and wherein preferably one or more sources for YO 2 are further provided in step (1 ).
摘要翻译:本发明涉及制备具有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) )提供一种混合物,该混合物包含用于Z 2 O 5 5的一种或多种来源,用于X 2 O 3 3的一种或多种来源, 任选的一种或多种结构导向剂和具有CHA骨架结构的晶种,其中晶种的CHA骨架结构包含Y0 2,X 2 O 其中所述晶种具有450nm或更大的直径;以及其中所述晶种具有450nm或更大的直径; (2)使(1)中提供的混合物结晶以得到包含步骤(1)中提供的晶种核和在晶种上结晶的壳的沸石晶体; 其中Z是五价元素,Y是四价元素,并且X是三价元素,并且其中优选在步骤(1)中进一步提供一种或多种YO 2的来源。 p>