| 摘要 |
<p>Process for the separation of aromatic hydrocarbons (e.g. xylenes) from their mixture, in which the mixture is passed in the vapour phase at 152, 5-250 DEG C over a potassium exchanged zeolite Y which has been saturated with isopropylbenzene - i.e. the desorbent - vapours.</p> |
