| 摘要 |
-A catalyst of the aluminosilicate type and its use in isomerisation of an aromatic C8 cut are described. …<??>-The catalyst is characterised by the following composition, expressed by weight:… a) 0.01 to 1.5% of at least one metal chosen from platinum and palladium,… b) 0 to 99.49% of a matrix,… c) 0.5 to 99.99% of a zeolite of the following approximate chemical formula:… M2/nO.Al2O3.xSiO2, where… M denotes a proton and/or a metal cation,… n is the valency of the said cation,… x is a number between 12 and 1000,… the zeolite of structure MFI, synthesised in a fluoride medium, having a fluorine content of between approximately 0.02 and 1.5% by weight incorporated during its synthesis. …<IMAGE>… |
