Process for selective ethyl scission of ethylaromatics to methyl

Details Process for selective ethyl scission of ethylaromatics to methyl Process for selective ethyl scission of ethylaromatics to methyl

1978-04-24

1979-12-04

O'Keefe, Veronica

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By dealkylation

208 46, C07C 358

Patent

active

041772199

ABSTRACT:
Ethyl aromatics contained in the C.sub.9 aromatic fraction from fractionated reformate are selectively converted to xylenes via ethyl scission in the presence of a catalyst comprising a carrier of highly purified gamma alumina containing essentially no silica and of a surface area of at least 100 m.sup.2 /g and a metal selected from the group consisting of a Group VIII metal and a Group VIII metal promoted with zinc.

REFERENCES:
patent: 2422673 (1947-06-01), Haensel et al.
patent: 3306944 (1967-02-01), Pollitzer
patent: 3992468 (1976-11-01), Cosyns et al.

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