-
公开(公告)号:US20050167338A1
公开(公告)日:2005-08-04
申请号:US10769538
申请日:2004-01-30
申请人: Jeffrey Miller , Bo Chen , Craig Colling , George Huff , Marvin Cadwell
发明人: Jeffrey Miller , Bo Chen , Craig Colling , George Huff , Marvin Cadwell
IPC分类号: B01D61/00 , B01D61/36 , B01D69/14 , B01D71/02 , B01D71/06 , C07C7/13 , C07C7/144 , C07C15/08 , C10G25/00 , C10G25/03 , C10G31/06 , C10G31/11
CPC分类号: B01D61/362 , B01D69/141 , B01D71/021 , B01D71/028 , B01D71/06 , C07C7/13 , C07C7/144 , C10G31/06 , C10G31/11 , C10G2300/1096 , C10G2400/30 , Y02P20/125 , C07C15/08
摘要: Processes and apparatus are disclosed for recovery of purified products from a fluid mixture by means of integrated perm-selective separations with purified product recovery operations. More particularly, integrated processes of the invention comprise separations by means of one or more devices using polymeric membranes coupled with recovery of purified products by means of fractional crystallization and/or selective sorption. Processes of the invention are particularly useful for recovery of a very pure aromatic isomer when processing aromatic starting materials, for example, a pure para-xylene product from liquid mixtures even containing ethylbenzene as well as the three xylene isomers.
摘要翻译: 公开的方法和装置用于通过具有纯化产物回收操作的积分渗透选择性分离从流体混合物回收纯化产物。 更具体地,本发明的综合方法包括通过使用聚合物膜的一种或多种装置进行分离,所述聚合物膜通过分级结晶和/或选择性吸附与回收纯化产物相结合。 当处理芳族起始原料时,本发明的方法特别有用于回收非常纯的芳族异构体,例如,即使含有乙苯的液体混合物以及三种二甲苯异构体也可以是纯的对二甲苯产物。