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Influence of cation content on the catalytic properties of PrHNaY zeolites in the cracking of n-heptane

✍ Scribed by F. Lemos; J.M. Lopas; F.Ramoa Ribeiro


Publisher
Elsevier Science
Year
1989
Weight
571 KB
Volume
53
Category
Article
ISSN
0304-5102

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The "!%I MAS NMR spxu-um or dehydrawd CaY zeobm IS comphcared wilh re\_~pec~ LO the h>drakd SKILS .md show\_+ ~1 leasr IWO extra hncs. The spectrum can be ralionahzed by assuming each 01 the lour Si( JIAI) Imes LO be sp11~ IIIICI 1-o Iins nith a chemical shah difrerence of 8 8 ppm and XI inlensiIy r