Process for the adsorptive separation of hydrocarbons dialkyl aromatics from feeds which also contain at least one isomer thereof.

摘要

Para-isomer of a hydrocarbon di-AROMATICO is separated from a mixture thereof with at least one other isomer HYDROCARBON, by contacting the mixture with a crystalline aluminosilicate ABSORBENT CONTAINING barium ions and potassium in ITEMS CATIONIC CHANGEABLE IN A RATIO OF MOL FOR A BAO A K2O RATIO 0.6: 1 1.2: 1 under ABSORCION SELECTED TO CARRY OUT THE UPTAKE TOLD TO-isomer and then contacting para-isomer container ABSORBENT WITH A desorbent material selected from MONOFLUOROAROMATICOS, DIFLUOROAROMATICOS or mixtures thereof CONDITIONS desorption SELECTED FOR CARRYING OUT THE RECOVERY OF SUCH ISOMERS.