Zeolite Socony Mobil

Natural zeolites may bear the name of the mineral (mordenite, faujasite, ferrier-ite, silicalite), or sometimes that of the discoverer, e.g. Barrerite after Professor Barrer, or the place where they were found, e.g. Bikitaite from Bikita, Zimbabwe. Synthetic zeolites are usually named after the industry or university where they were developed, e.g. VPI comes from Virginia Polytechnic Institute, and ZSM stands for Zeolite Socony Mobil. 

Zeolite Socony Mobil constructed from five-membered-ring building units... 

The naming of zeolites and related structures has been somewhat unsystematic. Some structures were named after the parent minerals (e.g., sodalite, faujasite), while others were named by researchers, or after the projects which synthesized them (e.g., ZSM [Zeolite Socony Mobil]). Unfortunately, this led to the same zeolites synthesized by different routes and bearing different names—in some cases, up to 20 different trade names ... 

The ZSM series (for Zeolite Socony Mobil) of highly siliceous zeolites is prepared from solutions containing alkylammonium bases. 

One of the most significant stages in the development of zeolite catalysts was the synthesis by Mobil scientists (U.S. Patent 3,702, 866) of the zeolite now universally known as ZSM-5 (i.e. Zeolite Socony Mobil-5). This was the first - and most important - member of a new class of shape selective catalysts, which have made viable the production of synthetic gasoline . In this process, high-octane gasoline is produced by the catalytic conversion of methanol to a mixture of aromatic and aliphatic hydrocarbons (Derouane, 1980). Because of its unique combination of chemical nature and pore structure, ZSM-5 is a highly effective dehydration, isomerization and polymerization catalyst. 

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. 

Zeolites are generally known by acronyms that reflect the research or industrial companies of origin, e.g. ZSM stands for Zeolite Socony Mobil. 

MFI stands for Mobil Five and ZSM stands for Zeolite Socony Mobil. Detailed information about the structure-type codes can be found on the homepage of the Structure Commission of the International Zeohte Association (IZA) at http //www.iza-structure.org. 

ZSM Zeolite Socony Mobil porous inaterials with different structures ZSM-5, MFI ZSM-12, MTW... 

In fact, there are many families of zeolite structures whose members contain similar structural units, such as chains, sheets or blocks, arranged in different, regularly repeating ways. The important zeolites ZSM-5 and ZSM-11 (ZSM = Zeolite Socony Mobil), where adjacent, similar layers are crystallo-graphically related either across inversion centres (ZSM-5" ) or by mirror planes... 

The presence of thallium(0) led to an increase in activity and selectivity of metallic palladium catalysts supported on silica in aldose oxidation reactions. However, silica-supported thallium(0) had no activity by itself (entry 3). ° Similarly, the bimetallic catalyst platinum-thallium/ZSM-5, prepared by impregnation of thallium sulfate and chloroplatinic acid on Zeolite Socony Mobil-5 (ZSM-5), showed greater selectivity in propane aromatisation and almost the same catalytic activity as monometallic thallium/ZSM-5 (entry 4). Similar comparison of vanadium-caesium-copper and vanadium-caesium-copper-thallium catalysts supported on TiOa.SiC demonstrated that addition of thallium improved the catalytic activity in partial oxidation of p-tert-butyltoluene to p-tert-butyl-benzaldehyde (entry The application of solid-supported thallium-based catalysts in different processes includes (a) iron-thallium catalysts in carbon monoxide hydrogenations to form hydrocarbons and alcohols, and catalytic reforming of... 

Waste Resources Action Programme Zeolite socony mobil... 

Zeolites are prepared under mild (60-400 C) hydrothermal conditions in strongly basic media. The type and concentration of the base are important structure-directing factors and a variety of organic bases are now being used in zeolite synthesis. The ZSM series (for Zeolite Socony Mobil) of highly siliceous zeolites is prepared from solutions containing alkylammonium bases. Other elements, such as Ga, Ge, B, Fe and P can substitute for Si and A1 in the framework, and there are claims that many other elements can also do so. 

Ngo, T. -A., Kim, J., Kim, S. K., Kim, S. -S. Pyrolysis of soybean oil with H-ZSM5 (Proton-exchange of Zeolite Socony Mobil 5) and MCM41 (MobU Composition of Matter No. 41) catalysts in a fixed-bed reactor. Energy 2010, 35,2723-2728. 

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