Aromatic hydrocarbon isomer separation process

Details Aromatic hydrocarbon isomer separation process Aromatic hydrocarbon isomer separation process

1975-03-27

1976-03-09

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

208310Z, 252455Z, C07C 713

Patent

active

039431843

ABSTRACT:
A process for the separation of the para-isomer from a hydrocarbon feed mixture comprising at least two bi-alkyl substituted monocyclic aromatic isomers, including the para-isomer, said isomers having from 8 to about 18 carbon atoms per molecule using a specially prepared adsorbent comprising a Y zeolite containing at the exchangeable cationic sites one or more selected cations. The feed mixture is passed through a bed of the adsorbent wherein the para-isomer is preferentially adsorbed within the adsorbent and thereafter recovered from the adsorbent. Novel feature of the process is the use of the specially prepared adsorbents which have faster adsorption-desorption rates for the desired para-isomer.

REFERENCES:
patent: 3558730 (1971-01-01), Neuzil
patent: 3878127 (1975-04-01), Rosback
patent: 3878129 (1975-04-01), Rosback
patent: 3894109 (1975-07-01), Rosback

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