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Linde Type A LTA

LTA is commonly synthesized with a Si/Al ratio of 1, which allows for strict alternation of the Si and A1 atoms in the structure and a doubling of the unit cell [Pg.36]

Space group Pseudo cell cubic, Pm3m, a = 12.30 A. Super cell (8x volume of pseudo cell) cubic, Fm-3c, a = 24.61 A [Pg.36]

Pore structure Three-dimensional eight-ring [Pg.36]


Linde type A LTA 4.1 3 LZ-215 N-A Gallophosphate-A Sapo-42 Alpha Galloeermanate-A ZK-4 ZK-21 ZK-22... [Pg.402]

Figure 10.1 Partial structures of several important zeolites, clockwise from top left faujasite (FAU), linde type A (LTA), zeolite beta (BEA ), and zeolite ZSM-5 (MFI). (See Reference 7.)... Figure 10.1 Partial structures of several important zeolites, clockwise from top left faujasite (FAU), linde type A (LTA), zeolite beta (BEA ), and zeolite ZSM-5 (MFI). (See Reference 7.)...
Figure 4.1 The structures of three different zeolites (a) sodalite (SOD) (b) Linde type A (LTA) (c) faujasite (FAU). The pore size and shape can be seen to differ greatly between these structures. Figure 4.1 The structures of three different zeolites (a) sodalite (SOD) (b) Linde type A (LTA) (c) faujasite (FAU). The pore size and shape can be seen to differ greatly between these structures.
The nomenclature of zeolites is rather arbitrary and follows no obvious rules because every producer of synthetic zeolites uses his/her own acronyms for the materials. However, as mentioned before, at least the structure types of the different zeolites have a unique code. For example, FAU represents Faujasite-type zeolites, LTA Linde Type A zeolites, MFI Mobile Five, and BEA Zeolite Beta. The structure commission of the International Zeolite Association (IZA) is the committee granting the respective three-letter codes [4], Some typical zeolites, which are of importance as catalysts in petrochemistry, will be described in the following sections. [Pg.101]

FIGURE 25.18 Main zeolite structures. SOD sodalite LTA Linde type A zeolite FAU faujasite, zeolites X or Y MOR mordenite LTL Linde type L zeolite MFI ZSM-5. (From Ozin, G.A., Kuperman, A., and Stein, A., Angew. Chem. Int. Ed. Engl., 28, 359, 1989.)... [Pg.466]

More than one hundred different zeotype structures, based on different topologies of the linkage of corner-sharing [TO4/2] tetrahedra (T = Al, Si, P. . . ), have been discovered so far. The various topologies are compiled in the "Zeolite Atlas" [21] under their respective three-letter code (e.g., LTA for "Linde Type A" or zeolite A, MFI for "ZSM-5" or "Mobil Five"). Apart from the framework composition, the high variability of framework structures is related to the fact that all of these compounds are metastable [14] and are formed by kinetic control under the influence of various SDAs. [Pg.651]

GIS). A three letter code (e.g. GIS) is assigned to confirmed framework types by the Structure Commission of the International Zeolite Association according to rules set up by an 1UPAC Commission on Zeolite Nomenclature [3,4]. The codes are normally derived from the name of the zeolite or type material , e.g. FAU from the mineral faujasite, LTA from Linde Type A, and MFI from ZSM-5 (Zeolite Socony Mobil - five). Information pertinent to these framework types is published in the Atlas of Zeolite Framework Types [5] and on the internet at http //www.iza-strncture.org/databases/. As new codes are approved, they arc announced on the IZA Structure Commission s WWW pages (http //www.iza-structure.org/) and included in the internet version of the Atlas. As of January 2005, 161 zeolite framework types had been confirmed by the Structure Commission. In this chapter, all references to materials whose framework types are known will be accompanied by the appropriate three letter code in boldface type. [Pg.43]


See other pages where Linde Type A LTA is mentioned: [Pg.36]    [Pg.580]    [Pg.5084]    [Pg.172]    [Pg.546]    [Pg.272]    [Pg.5083]    [Pg.26]    [Pg.334]    [Pg.356]    [Pg.188]    [Pg.392]    [Pg.608]    [Pg.36]    [Pg.580]    [Pg.5084]    [Pg.172]    [Pg.546]    [Pg.272]    [Pg.5083]    [Pg.26]    [Pg.334]    [Pg.356]    [Pg.188]    [Pg.392]    [Pg.608]    [Pg.134]    [Pg.11]    [Pg.11]    [Pg.13]    [Pg.13]    [Pg.14]    [Pg.14]    [Pg.251]    [Pg.253]    [Pg.578]    [Pg.319]    [Pg.8]    [Pg.5083]    [Pg.446]    [Pg.21]    [Pg.46]    [Pg.310]    [Pg.11]    [Pg.11]    [Pg.12]    [Pg.12]    [Pg.13]    [Pg.13]    [Pg.41]    [Pg.47]   


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