公开(公告)号：EP1508557A4

公开(公告)日：2006-05-31

申请号：EP03730606

申请日：2003-05-23

Applicant: TORAY INDUSTRIES

Inventor： KATO HAJIME ,  UCHIYAMA NAOYUKI ,  MINOMIYA EIICHI ,  YOSHIKAWA MASAHITO ,  MIYAMOTO TOHRU ,  HIGUCHI KAZUYOSHI

IPC: B01J29/60 ,  B01J35/00 ,  B01J35/02 ,  B01J37/26 ,  C07C17/12 ,  C07C17/395 ,  C07C25/02 ,  C07B61/00 ,  C07C25/125

CPC classification number: C07C17/395 ,  B01J29/60 ,  B01J35/0013 ,  B01J35/023 ,  B01J37/26 ,  C07C17/12 ,  C07C25/125 ,  C07C25/08 ,  C07C25/02 ,  C07C25/10

Abstract: A process for halogenation of benzene or benzene derivatives, by which dihalogenated benzene derivatives having halogen atoms at positions para to each other or trihalogenated derivatives having halogen atoms at the 1-, 2-, and 4-positions can be selectively produced. In halogenating benzene or a benzene derivative by using a zeolite catalyst, a zeolite (such as zeolite L) which either contains fluorine or has a crystallite diameter of 100 nm or below is used as the catalyst. The reaction is preferably conducted in the presence of a solvent, the solvent being preferably a halogen-containing compound.