公开(公告)号：US3845149A

公开(公告)日：1974-10-29

申请号：US35640673

申请日：1973-05-02

Applicant: HOECHST AG

Inventor： PIETZSCH S ,  WIRTZ R ,  SCHAEFFER G

IPC: C07C5/22 ,  B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C1/00 ,  C07C5/27 ,  C07C15/24 ,  C07C67/00 ,  C07C5/28

CPC classification number: C07C5/2751 ,  C07C5/2759 ,  Y10S585/954 ,  C07C15/24

Abstract: 1. A PROCESS FOR THE ISOMERIZATION OF A-ISOPROPYLNAPHTHALENE TO B-ISOPROPYL NAPHTHALENE WITH AN ALUMINIUM CHLORIDE IN AMOUNTS OF 0.05 TO 0.8% BY WEIGHT ALUMINUM CHLORIDE IN AMOUNTS OF 0.05 TO 0.8% BY WEIGHT OR ETHYL ALUMINUM DICHLORIDE IN AMOUNTS OF 0.5 TO 1.5% BY WEIGHT OR A MIXTURE THEREOF, EACH CALCULATED ON THE TOTAL QUANTITY OF THE INITIAL ALKYLATED NAPHTHALENE, THE PORTION OF THE B-ISOMERIC MONO - ISOPROPYL NAPHTHALENE BEING AT LEAST 92%, CALCULATED ON THE TOTAL MONO-ISOMER PORTION AND THE TOTAL PORTION OF THE MONO-ISOPROPYL-NAPHTHALENE EXCEEDING 70% BY WEIGHT, CALCULATED ON THE TOTAL AMOUNT OF ALKYLATED NAPHTHALENES, AT A TEMPERATURE OF FROM 40 TO 200* C.

公开(公告)号：IN140099B

公开(公告)日：1976-09-11

申请号：IN2492CA1973

申请日：1973-11-13

Applicant: HOECHST AG

Inventor： BILDSTEIN S ,  SCHAEFFER G ,  LADEMANN R ,  PIETZSCH S

IPC: B01J19/00 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C309/35 ,  C07C143/30