Isomerisation of alkyl aromatics using a gallium containing...

Details Isomerisation of alkyl aromatics using a gallium containing... Isomerisation of alkyl aromatics using a gallium containing...

C - Chemistry, Metallurgy

07

C

260/689.5

C07C 5/27 (2006.01) B01J 29/18 (2006.01) B01J 29/40 (2006.01) B01J 29/50 (2006.01) B01J 29/70 (2006.01) C07C 4/12 (2006.01) C07C 6/12 (2006.01)

Patent

CA 1112253

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the hydrocatalytic treatment of a hydrocarbon feedstock which is a mixture of alkyl aromatics containing at least one di- or polymethyl benzene and an alkyl benzene selected from ethyl-benzene, methyl ethyl-benzene and propyl- benzene by contacting the mixture at 300° to 500°C, a pressure of 0 to 100 bars gauge and in the presence of hydrogen with a gallium containing aluminosilicate catalyst and recovering the desired product. The aluminosilicate has a silica to alumina ratio of between 10:1 and 100:1 on a molar bases. The xylene products are useful raw materials as such or for making the corresponding dicarboxylic acids.

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