公开(公告)号：US4636483A

公开(公告)日：1987-01-13

申请号：US806984

申请日：1985-12-09

申请人： Solveg S. Kjell ,  Tai-Hsiang Chao ,  Nancy J. Flint ,  Arthur A. Foutsitzis

发明人： Solveg S. Kjell ,  Tai-Hsiang Chao ,  Nancy J. Flint ,  Arthur A. Foutsitzis

IPC分类号： C01B39/00 ,  B01J29/40 ,  B01J29/44 ,  B01J29/65 ,  B01J29/70 ,  B01J29/90 ,  C01B39/06 ,  C01B39/38 ,  C07B61/00 ,  C07C1/00 ,  C07C2/76 ,  C07C15/00 ,  C07C67/00 ,  C10G45/60 ,  B01J29/06

CPC分类号： B01J29/40 ,  B01J29/44 ,  B01J29/90 ,  C07C2/76 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  B01J29/65 ,  B01J29/70 ,  C07C2521/04 ,  C07C2523/08 ,  C07C2527/14 ,  C07C2529/40 ,  Y02P20/584

摘要： Superior tolerance to catalyst coking is obtained with a catalytic composite comprising a gallium component and a crystalline aluminosilicate incorporated with a phorphorus containing alumina. A five-fold reduction in the coke content of the spent catalyst of the instant invention is observed which is directly attributable to the phosphorus containing alumina. A novel method of preparing this catalyst is presented, along with a novel process for the dehydrocyclodimerization of C.sub.2 -C.sub.5 aliphatic hydrocarbons.

公开(公告)号：US4529828A

公开(公告)日：1985-07-16

申请号：US614890

申请日：1984-05-29

申请人： George J. Antos ,  Nancy J. Flint

发明人： George J. Antos ,  Nancy J. Flint

IPC分类号： C07C7/13

CPC分类号： C07C7/13

摘要： A process able to separate ortho-xylene from the other C.sub.8 aromatics. In the process the ortho-xylene-containing feed mixture is contacted with an X-type zeolite having silver cations at exchangeable cationic sites which has been subjected to a reduction step. The ortho-xylene is selectively adsorbed onto the adsorbent. The feed is then removed from the absorbent and the ortho-xylene recovered by desorption with para-diethylbenzene. The process is particularly amenable to the simulated moving bed flow scheme.

摘要翻译： 一种能够将邻二甲苯与其他C8芳族化合物分离的方法。 在该方法中，将邻二甲苯的进料混合物与已经进行还原步骤的可交换的阳离子位点处的具有银阳离子的X型沸石接触。 邻二甲苯选择性吸附在吸附剂上。 然后从吸收剂中除去进料，通过用对二乙基苯解吸回收邻二甲苯。 该过程特别适用于模拟移动床流动方案。