公开(公告)号：US3890403A

公开(公告)日：1975-06-17

申请号：US41564673

申请日：1973-11-14

Applicant: TEIJIN LTD

Inventor： SHIMADA KEIZO ,  NISHIKAWA TAKEO ,  HARADA TOSHIAKI ,  NAGAHAMA SHIZUO

IPC: C07C5/11 ,  C07C5/22 ,  C07C5/27 ,  C07C5/367 ,  C07C7/00 ,  C07C7/148 ,  C07C7/152 ,  C07C7/163 ,  C07C15/24 ,  C07C7/02

CPC classification number: C07C15/24 ,  C07C5/11 ,  C07C5/2213 ,  C07C5/222 ,  C07C5/2732 ,  C07C5/2735 ,  C07C5/2737 ,  C07C5/367 ,  C07C7/005 ,  C07C7/148 ,  C07C7/152 ,  C07C7/163 ,  C07C2521/02 ,  C07C2521/04 ,  C07C2521/12 ,  C07C2521/14 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/46 ,  C07C2523/72 ,  C07C2523/755 ,  C07C2523/86 ,  C07C2529/08 ,  C07C2529/18 ,  C07C13/48 ,  C07C13/45

Abstract: A process for separating and recovering 2,6-dimethylnaphthalene from a dimethylnaphthalene mixture containing

WHICH COMPRISES THE STEPS OF: I. PARTIALLY HYDROGENATING THE ABOVE DIMETHYLNAPHTHALENE MIXTURE TO A DIMETHYLTETRALIN MIXTURE, II. PRIOR TO OR AFTER ISOMERIZATION OF THE SAID DIMETHYLTETRALIN MIXTURE SEPARATING THE PARTIALLY HYDROGENATED DIMETHYLTETRALINS (I) of said

FROM PARTIALLY HYDROGENATED DIMETHYLTETRALINS (II) of said

AND COLLECTING DIMETHYLTETRALINS (I), iii. dehydrogenating said dimethyltetralins (I) to be

AND IV. SEPARATING AND RECOVERING 2,6-DIMETHYLNAPHTHALENE FROM THE RESULTANT DEHYDROGENATION PRODUCT AND RECYCLING THE RESIDUAL DIMETHYLNAPHTHALENES TO THE ABOVE PARTIAL HYDROGENATION STEP (I).

Abstract translation: 从二甲基萘混合物中分离和回收2,6-二甲基萘的方法，其包含步骤：

公开(公告)号：US3928476A

公开(公告)日：1975-12-23

申请号：US44415874

申请日：1974-02-20

Applicant: TEIJIN LTD

Inventor： SHIMADA KEIZO ,  NISHIKAWA TAKEO ,  HARADA TOSHIAKI ,  NAGAHAMA SHIZUO

IPC: C07B61/00 ,  B01J21/00 ,  B01J27/00 ,  B01J27/02 ,  B01J27/16 ,  B01J37/20 ,  B01J37/28 ,  C07C67/00 ,  C07C201/00 ,  C07C201/08 ,  C07C205/12 ,  C07C79/12

CPC classification number: B01J37/20 ,  B01J27/02 ,  B01J27/16 ,  B01J37/28 ,  C07C201/08 ,  C07C205/12

Abstract: A process for nitrating halogenated benzene derivatives, which comprizes reacting a halogenated benzene devirative with nitric acid in the liquid phase in the presence of a catalyst composed of an oxyacid of sulfur or phosphorus supported on silica-alumina and/or alumina.

Abstract translation: 一种硝化卤代苯衍生物的方法，其包括在负载在二氧化硅 - 氧化铝和/或氧化铝上的由硫或磷的含氧酸组成的催化剂存在下，在液相中使卤代苯脱附物与硝酸反应。