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Catalyst production for the transformation of crudes into gasoline
and other fuel products is a billion dollar/year business and fluid
cracking catalysts (FCCs) represent almost half of the refinery
catalyst market.
From the symposium on Advances in Zeolites and Pillared Clays Synthesis, sponsored by the Petroleum Chemistry Division of the American Chemical Society experts from around the world review: You'll find everything you've ever wanted to know about zeolites and pillared clays: For the novice - how to information on zeolite synthesis. For the expert - a survey of advances in novel zeolites. The mechanism of zeolite crystallisation and crystal growth; spectroscopic characterization of reactants and reaction intermediates; chemistry of silicate solution and reaction effects on crystallization products; the role of organic additives in zeolite formation; novel synthesis methods and procedures for zeolites and pillared clays preparation; new pillaring agents and pillared products; delaminated clays.
the chapters contained in this volume. Chapters dealing with pillared clays char- acterization and testing have been included to illustrate the importance of mod- em characterization techniques and of test reactions in understanding the prop- erties of these materials. A special acknowledgment is made of the generous financial contribution from industrial sponsors, to the many colleagues who acted as referees and to the authors for the time and effort they gave to presenting their research at the symposium and in preparing the camera ready manuscripts. We would also like to thank Professors A. Clearfield, T. J. Pinnavaia, Z. Gabelica, H. Kessler, S. Yamanaka, and to Doctors G. W. Skeel and D. E. W. Vaughan for helping to chair the symposium. Mario L. Occelli Yorba Linda, CA Harry E. Robson Baton Rouge, LA Expanded Clays and Other Microporous Solids 1 APPROACHES TO THE SYNTHESIS OF SUPER GALLERY PILLARED CLAYS Thomas J. Pinnavaia, Department of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, Michigan 48824 Recent advances in the design of microporous pillared solids with "supergallery" structures are discussed. Supergallery derivatives are defined as intercalates in which the interlayer thickness is substantially larger than the thickness of the host layer. Three general classes of hosts are considered, namely, 2:1 smectite clays,layered double hydroxides (LDHs) , and layered silicic acids.
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