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Influence of the solid-state modification of MCM-22 with Cs on toluene disproportionation |
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| Authors: | Vesselina Mavrodinova Margarita Popova Magdolna R Mihályi Gabriella Pál-Borbély and Christo Minchev |
| Institution: | (1) Institute of Organic Chemistry, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria;(2) Chemical Research Center, Institute of Chemistry Pusztaszeri út, 59-67, Budapest, Hungary 1025 |
| Abstract: | The catalytic performance of MCM-22 modified with Cs to different extents by Solid-State Ion Exchange has been investigated in toluene disproportionation. It was suggested that protons on the external surface were preferentially replaced by Cs cations. It was observed that the Cs modifications did not provide improved p-xylene selectivity at conversions close to that of the H-form. The remaining unaffected proton sites in the 10 MR channels are considered as responsible for secondary xylene isomerization proceeding upon toluene disproportionation. This revised version was published online in June 2006 with corrections to the Cover Date. |
| Keywords: | MCM-22 Cs-modified toluene disproportionation p-selectivity |
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