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Citation: Yin Dong-Hong, Yin Du-Lin. Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation[J]. Acta Physico-Chimica Sinica, ;1998, 14(05): 448-452. doi: 10.3866/PKU.WHXB19980513 shu

Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation

1.
Institute of Fine Catalysis and Synthesis,Hunan Normal University,Changsha 410081

Received Date: 22 September 1997
Available Online: 15 May 1998

ZnCl2/Y catalysts prepared by solid-state reaction of anhydrous ZnCl2 and Y zeolites under microwave irradiation were characterized by XRD, IR and AAS. ZnCl2 was intercalated in Y zeolites and dispersed on the surface of Y zeolite, part of ZnCl2 dispersed could result in solid-state ion exchange with Y. The amount of dispersion and solid-state ion exchange were related to ZnCl2 loading and the surface acid property of the zeolite. When ZnCl2 loading was 37.5% (mass fraction) in NaY zeolite, ZnCl2 was still completely dispersed on the surf are of zeolite and the degree of solid- state ion exchang was 84%. The appearance of new band at 890 cm-l in the framework IR spectra of ZnCl2/NaY sample was due to the dispersed ZnCl2 coordinating strongly with oxygen of NaY surface. With the increasing of the number of arid centers and the acid strength of the surface of Y zeolite the amount of solid-state ion exchange decreased.
- Microwave irradiation,
- ZnCl2,
- Y zeolite,
- Solide-state reaction,
- Catalyst
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Study on the Solid-state Reaction of ZnCl2 and Y Zeolites under Microwave lrradiation

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Study on the Solid-state Reaction of ZnCl₂ and Y Zeolites under Microwave lrradiation