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Zinc - modified forms of zeolites by wet impregnation method [articol]

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dc.contributor.author Ciobanu, Georgeta
dc.contributor.author Ignat, D.
dc.contributor.author Carja, G.
dc.contributor.author Rățoi, S.
dc.contributor.author Luca, C.
dc.date.accessioned 2020-04-08T15:03:20Z
dc.date.accessioned 2021-03-01T08:36:47Z
dc.date.available 2020-04-08T15:03:20Z
dc.date.available 2021-03-01T08:36:47Z
dc.date.issued 2008
dc.identifier.citation Ciobanu, Georgeta. Zinc - modified forms of zeolites by wet impregnation method. Timişoara: Editura Politehnica, 2008 en_US
dc.identifier.uri http://primo.upt.ro:1701/primo-explore/search?query=any,contains,Zinc%20-%20modified%20forms%20of%20zeolites%20by%20wet%20impregnation%20method&tab=default_tab&search_scope=40TUT&vid=40TUT_V1&lang=ro_RO&offset=0 Link Primo
dc.description.abstract Zeolites are crystalline aluminosilicates that possess well-defined pore structures and inner cavities. The framework consists of numerous aluminum and silicon atoms positioned within oxygen tetrahedral sites. Zeolites have been found to possess both Lewis and Brönsted acidity. Solid acid-base catalysts play an extremely important economical and ecological role in chemical and petrochemical industry as well as refinery technology. The range of catalytic transformation has grown steadily in the past two decades as experimental modifications of zeolites were explored. In this work, the various zeolites have been prepared by hydrothermal methods, calcined and ion-exchanged with ammonium nitrate to yield H-zeolites. The catalysts investigated are both medium (H-ZSM-5) and large pore (H-Y) zeolites. These zeolites are modified with zinc by wet impregnation method. FTIR spectroscopy and XRD analysis have been applied to characterize zeolite structures. The results obtained indicate that the introduction of zinc into ZSM-5 and Y samples lead to a series of promising catalysts, with high activity and a good selectivity. en_US
dc.language.iso en en_US
dc.publisher Timişoara : Editura Politehnica en_US
dc.relation.ispartofseries Seria chimie şi ingineria mediului,;Tom 53(67), fasc. 1-2 (2008)
dc.subject Chimie anorganică -- Articol en_US
dc.subject HZSM-5 and HY zeolites en_US
dc.subject Zinc en_US
dc.subject Wet impregnation en_US
dc.title Zinc - modified forms of zeolites by wet impregnation method [articol] en_US
dc.type Article en_US

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