Solid-state ion exchange in zeolites: Part 6. SystemLaCl3/NaY zeolite

Karge, Hellmut G.; Pál-Borbély, Gabriella; Beyer, Hermann K.

doi:10.1016/0144-2449(94)90183-X

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Solid-state ion exchange in zeolites: Part 6. SystemLaCl₃/NaY zeolite

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Karge, Hellmut G.
Fritz Haber Institute, Max Planck Society;

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Citation

Karge, H. G., Pál-Borbély, G., & Beyer, H. K. (1994). Solid-state ion exchange in zeolites: Part 6. SystemLaCl₃/NaY zeolite. Zeolites, 14(7), 512-518. doi:10.1016/0144-2449(94)90183-X.

Cite as: https://hdl.handle.net/21.11116/0000-0009-8E75-4

Abstract

La,NaY zeolite (I) is prepared by contact-induced ion exchange between solid LaCl₃·7 H₂O and NaY zeolite powder. La,NaY (I) is investigated by X-ray diffraction,²⁷AIMAS n.m.r.,²⁹SiMAS n.m.r.,²³NaMAS n.m.r., and i.r. spectroscopy after various treatments. Results are compared with those obtained employing a conventionally exchanged La,NaY sample (76). It is shown that the behavior of La,NaY zeolites obtained via either route are very similar except for a somewhat lower thermal stability of the La,NaY (I) after heat-treatment at high temperature (850 K), treatment with water, and repeated high-temperature treatment. The catalytic performance of La,NaY (I) and La,Nay (74) is almost identical when tested for acid-catalyzed selective disproportionation of ethylbenzene.