摘要 |
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.
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申请人 |
TORAY INDUSTRIES, INC.;KATO, HAJIME;UCHIYAMA, NAOYUKI;MINOMIYA, EIICHI;YOSHIKAWA, MASAHITO;MIYAMOTO, TOHRU;HIGUCHI, KAZUYOSHI |
发明人 |
KATO, HAJIME;UCHIYAMA, NAOYUKI;MINOMIYA, EIICHI;YOSHIKAWA, MASAHITO;MIYAMOTO, TOHRU;HIGUCHI, KAZUYOSHI |