HONEYCOMB STRUCTURE
    55.
    发明申请
    HONEYCOMB STRUCTURE 审中-公开
    蜂窝结构

    公开(公告)号:US20150273446A1

    公开(公告)日:2015-10-01

    申请号:US14433023

    申请日:2012-10-03

    申请人: IBIDEN CO., LTD.

    IPC分类号: B01J29/00 B01J35/04

    摘要: Provided is a honeycomb structure which is suppressed in the occurrence of cracks and hydration degradation, while maintaining excellent NOx removal performance of SAPO. A honeycomb structure having a honeycomb unit that comprises two zeolite species and an inorganic binder, and that has a plurality of through holes arranged side by side with a partition wall therebetween to be extended in the longitudinal direction of the unit. This honeycomb structure is characterized in that one of the two zeolite species is silicoaluminophosphate (SAPO) having a composition ratio Si/(Si+Al+P) of 0.1-0.25, and the other is aluminosilicate (CHA) having a composition ratio Si/Al of 2-10.

    摘要翻译: 提供了抑制SAPO的优异的NOx去除性能的蜂窝结构体,其在发生裂纹和水化降解的同时被抑制。 一种具有蜂窝单元的蜂窝结构体,其包含两种沸石种类和无机粘合剂,并且具有并排布置的多个通孔,其间具有分隔壁,以在所述单元的纵向延伸。 该蜂窝结构体的特征在于,两种沸石种类之一是Si /(Si + Al + P)的组成比为0.1-0.25的硅铝磷酸盐(SAPO),另一种为硅/硅酸盐(CHA),其组成比为Si / Al 2-10。

    Process For The Preparation Of Zeolites Having CHA Structure
    58.
    发明申请
    Process For The Preparation Of Zeolites Having CHA Structure 有权
    具有CHA结构的沸石的制备方法

    公开(公告)号:US20150132215A1

    公开(公告)日:2015-05-14

    申请号:US14534642

    申请日:2014-11-06

    申请人: BASF SE

    IPC分类号: B01J29/76 B01D53/94 C01B39/48

    摘要: The present invention relates to a process for the preparation of zeolites having CHA framework structure and a composition comprising the molar ratio (n SiO2):X2O3, wherein X is a trivalent element, and wherein n is at least 10, the process comprising (i) preparation of an aqueous solution containing at least one source for X2O3, wherein X is selected from Al, B, Ga, and a mixture of two or more, and at least one source for SiO2, at least one organic structure directing agent (SDA) other than Tetramethylammonium hydroxide (TMAOH), acting as a template for the CHA structure, and Tetramethylammonium hydroxide (TMAOH), wherein the SDA or mixtures thereof are employed in such amounts that the aqueous solution in (i) exhibits a molar ratio of SDA:TMAOH of 0.01 to 5; (ii) hydrothermal crystallization of the aqueous solution according to (i); wherein the aqueous solution of (i) contains copper in an amount less than 0.005 Cu: ((n YO2)+X2O3) where n is in the range of 10 to 50. The present invention also relates to the zeolitic materials obtainable and/or obtained by this process as well as to a zeolitic material as such, having framework structure CHA, having a composition comprising the molar ratio (n SiO2):X2O3, wherein X is a trivalent element and n is at least 10, and wherein the crystal size, as determined from Scanning Electron Microscopy, is greater than 1 micrometer and wherein the chabazite framework is phase-pure having an impurity of other zeolitic frameworks, such as RUT as determined by X-ray Diffraction, of less than 5%.

    摘要翻译: 本发明涉及一种制备具有CHA骨架结构的沸石和包含摩尔比(n SiO 2):X 2 O 3的组合物的方法,其中X是三价元素,并且其中n至少为10,该方法包括(i )制备含有至少一种X 2 O 3的源的水溶液,其中X选自Al,B,Ga,以及两种或更多种的混合物和至少一种SiO 2源,至少一种有机结构导向剂(SDA ),作为CHA结构的模板的四甲基氢氧化铵(TMAOH)和氢氧化四甲基铵(TMAOH),其中SDA或其混合物的使用量使得(i)中的水溶液表现出的摩尔比为SDA :TMAOH为0.01〜5; (ii)根据(i)的水溶液的水热结晶; 其中(i)的水溶液含有小于0.005 Cu:((n YO 2)+ X 2 O 3)的铜,其中n在10至50的范围内。本发明还涉及可获得的和/或 通过该方法获得的沸石材料以及具有骨架结构CHA的沸石材料,其具有包含摩尔比(n SiO 2):X 2 O 3的组成,其中X是三价元素,n至少为10,并且其中晶体 通过扫描电子显微镜测定的尺寸大于1微米,其中菱沸石框架是相纯的,具有小于5%的其它沸石骨架的杂质,例如通过X射线衍射测定的RUT。

    SEEDED SYNTHESIS OF ALUMINOSILICATE MOLECULAR SIEVES
    60.
    发明申请
    SEEDED SYNTHESIS OF ALUMINOSILICATE MOLECULAR SIEVES 审中-公开
    酸性分子筛的合成

    公开(公告)号:US20150118151A1

    公开(公告)日:2015-04-30

    申请号:US14065581

    申请日:2013-10-29

    IPC分类号: B01J29/85 B01J29/70

    摘要: A process for producing an aluminosilicate molecular sieve comprises crystallizing a reaction mixture comprising water, a source of silica and seeds of a silicoaluminophosphate and/or an aluminophosphate molecular sieve. The resultant aluminosilicate molecular sieve product can advantageously be substantially free of framework phosphorus.

    摘要翻译: 制备硅铝酸盐分子筛的方法包括使包含水,二氧化硅源和硅铝磷酸盐和/或磷酸铝分子筛的种子的反应混合物结晶。 所得的铝硅酸盐分子筛产物可以有利地基本上不含骨架磷。