申请人:UBE Industries, Ltd
公开号:US20020016514A1
公开(公告)日:2002-02-07
There are disclosed a process for producing a dihydric phenol which comprises oxidizing a monohydric phenol by a peroxide compound in the presence of a &bgr;-zeolite, a ketone and a phosphoric acid, and a process for producing a dihydric phenol which comprises oxidizing a monohydric phenol in the presence of a &bgr;-zeolite, a ketone and a phosphoric acid, by feeding a monohydric phenol, hydrogen peroxide, a ketone and a phosphoric acid into a reactor in which a &bgr;-zeolite is charged, to oxidize the monohydric phenol into a dihydric phenol, and delivering the resultant reaction mixture from the reactor.
本发明公开了一种生产二水酚的工艺,该工艺包括在&bgr;-沸石、酮和磷酸的存在下用过氧化化合物氧化一水酚,以及一种生产二水酚的工艺,该工艺包括在&bgr;-沸石、酮和磷酸的存在下氧化一水酚,方法是将一水酚、过氧化氢、酮和磷酸送入一个反应器,在该反应器中,&bgr;-沸石、酮和磷酸被氧化;-沸石、酮和磷酸的存在下氧化一水苯酚,方法是将一水苯酚、过氧化氢、酮和磷酸送入反应器中,在反应器中充入&bgr;-沸石,将一水苯酚氧化成二水苯酚,并将生成的反应混合物从反应器中送出。