Xylene isomerization

Details Xylene isomerization Xylene isomerization

C - Chemistry, Metallurgy

07

C

260/689.5

C07C 15/08 (2006.01) B01J 29/44 (2006.01) B01J 29/46 (2006.01) C07C 5/27 (2006.01)

Patent

CA 1096890

XYLENE ISOMERIZATION ABSTRACT Isomerization of xylenes in admixture with ethyl benzene by contact with a zeolite catalyst such as ZSM-5 is improved by use of zeolite having a silica/alumina ratio of at least 500 at a temperature above about 800°F. At these conditions, conversion of ethyl benzene follows a different reaction path which permits high conversion of ethyl benzene to benzene without loss of xylenes by disproportionation. F-9485(9795)

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