公开(公告)号：US4283587A

公开(公告)日：1981-08-11

申请号：US160053

申请日：1980-06-16

申请人： Donald H. Rosback, deceased ,  by Janice M. Gillespie, executrix

发明人： Donald H. Rosback, deceased ,  by Janice M. Gillespie, executrix

IPC分类号： C07C7/12 ,  B01J20/18 ,  C07C1/00 ,  C07C7/13 ,  C07C15/073 ,  C07C15/08 ,  C07C67/00

CPC分类号： B01J20/186 ,  C07C7/13

摘要： An adsorptive separation process is disclosed for separating para-aromatic isomers from a hydrocarbon feed containing a mixture of aromatic isomers, using a crystalline aluminosilicate adsorbent which has been treated with an alkyl amine preferably an alkyl amine hydrochloride. The alkyl amine treatment substantially increases the selectivity of the adsorbent for the para-xylene isomer, relative to the heavy desorbent p-DEB, thereby improving the efficiency of the separation process.

摘要翻译： 公开了一种吸附分离方法，用于使用已用烷基胺优选烷基胺盐酸盐处理的结晶硅铝酸盐吸附剂从含有芳族异构体混合物的烃进料中分离对位芳族异构体。 烷基胺处理相对于重的解吸剂p-DEB，基本上增加了对二甲苯异构体的吸附剂的选择性，从而提高了分离过程的效率。