Patent ID: 7893309

Claim:
A process for isomerising an aromatic cut containing at least one aromatic compound containing eight carbon atoms per molecule, comprising bringing said cut into contact with at least one catalyst containing at least one zeolite with structure type EUO, said catalyst having been prepared using a process comprising at least the following steps: i) synthesizing at least one zeolite with structure type EUO having an overall Si/Al atomic ratio in the range 5 to 45; ii) dealuminating the zeolite obtained at the end of said step i) using at least one treatment with an aqueous solution of a mineral acid or an organic acid, such that at least 10% by weight of the aluminium atoms are extracted from said zeolite resulting from said step i); iii) forming said dealuminated zeolite with a matrix; iv) depositing at least one metal from group VIII of the periodic table of the elements, the order of carrying out said steps iii) and iv) being optional following on from said step ii).