发明授权
- 专利标题： Purification of .beta.-naphthol
- 专利标题（中）： 纯化{62-萘酚
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申请号： US588117申请日： 1975-06-18
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公开(公告)号： US4021495A公开(公告)日： 1977-05-03
- 发明人: Hirokazu Hosaka , Kunihiko Tanaka , Yuji Ueda
- 申请人： Hirokazu Hosaka , Kunihiko Tanaka , Yuji Ueda
- 申请人地址： JA Osaka
- 专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人： Sumitomo Chemical Company, Limited
- 当前专利权人地址： JA Osaka
- 优先权： JA49-70506 19740619
- 主分类号： C07C27/00
- IPC分类号： C07C27/00 ; C07C37/84 ; C07C39/14 ; C07C67/00
摘要：
A process for purifying crude .beta.-naphthol obtained via an alkylnaphthalene hydroperoxide, comprising subjecting the crude .beta.-naphthol to a recrystallization treatment using (1) an aliphatic or alicyclic hydrocarbon solvent having 5 to 10 carbon atoms, or (2) a mixed solvent comprising the aliphatic or alicyclic hydrocarbon solvent and at least one other solvent selected from the group consisting of benzene, a benzene derivative, a ketone, an alcohol, an ether and an ester.
公开/授权文献
- US4541327A Local extraction device 公开/授权日：1985-09-17