COLL 413 |
| Stacey Zones1, Mark E. Davis2, Son-Jong Hwang3, Isao Ogino1, Allen Burton1, and Russell Morris1. (1) Chevron, Chevron Research and Technology Co, Richmond, CA 94802, (2) Department of Chemical Engineering, CALTECH, Mail Code 210-41, California Ave, Pasadena, CA 91125, (3) Dept. Chem. Eng, Caltec, Pasadena, CA 91125 |
| While the HF based synthesis of zeolites has been recognized for 3 decades now, only in the last decade has the system been used to successfully find new zeolite structures. This important breakthrough was made at the Institute of Chemical Technology in Valencia Spain when colleagues Avelino Corma and Miguel Camblor began to study reactions with very low water content. This led to the synthesis of some surprisingly open framework all-silica products. In our study we follow-up on their impressive success by examining the competition for structure selection between the influence of fluoride, and the particular SDA in the system. We also show the parallels for HF reaction selectivity vis-a-vis water to the effect of aluminum in hydroxide-based syntheses. Lastly, borrowing from some studies in which Lobo was an early pioneer, we ask the question as to whether the interactions between host and guest are altered in the HF reactions because there are few to no defect sites |
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Ipatieff Award Symposium Honoring Raul Lobo
8:30 AM-11:30 AM, Wednesday, March 31, 2004 Marriott -- Grand Ballroom K, Oral
Division of Colloid and Surface Chemistry |