公开(公告)号：US4847435A

公开(公告)日：1989-07-11

申请号：US206227

申请日：1988-06-13

申请人： Keizo Kase ,  Tsutomu Idai ,  Kazumasa Ishii ,  Eiji Takahashi

发明人： Keizo Kase ,  Tsutomu Idai ,  Kazumasa Ishii ,  Eiji Takahashi

IPC分类号： B01J29/46 ,  B01J29/40 ,  B01J29/48 ,  C07B61/00 ,  C07C37/50 ,  C07C37/86 ,  C07C39/04 ,  C07C39/06

CPC分类号： C07C37/86 ,  B01J21/04 ,  B01J29/46 ,  B01J37/0036 ,  B01J37/0063 ,  B01J37/28 ,  C07C37/50 ,  B01J2229/42 ,  Y02P20/52

摘要： A meritorious, commercially successful process for the recovery of a high-purity m-ethylphenol from ethylphenol mixtures containing m- and p-ethylphenols as the major components is disclosed. As it is well known in the art, the ethylphenol mixtures containing m- and p-ethylphenols as the major components can easily be prepared by ethylation of phenol with ethylene or ethanol by a simple operation. Accordingly, a process for the recovery of high-purity m-ethylphenol from ethylphenol mixtures containing m- and p-ethylphenols as the major components can give great influences in the commercial production of high-purity m-ethylphenol. m-Ethylphenol is a useful intermediate for the production of pharmaceuticals and agricultural chemicals. The process comprises simply contacting an ethylphenol mixture containing m- and p-ethylphenols as the major components with a specific crystalline aluminosilicate catalyst under heating.