Abstract
1. A study has been made of the conversion of m− and o-xylenes in the presence of an ultra-high silica zeolite in the initial and decationized forms and in the presence of decationized and dealuminated mordenite at 150–550°C, atmospheric pressure, and a space velocity of 180 h−1. 2. The Na- and H-forms of the ultrahigh-silica zeolite lead mainly to the isomerization of xylenes, while the isomerization and disproportionation of xylenes take place on the mordenites. 3. In the presence of the Na- and H-forms of the ultrahigh-silica zeolite, which possesses a high stability in comparison with the decationized mordenite, the isomerization of m- and o-xylenes is characterized by an enhanced selectivity with respect to the formation of pxylene.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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