发明公开
- 专利标题： Process for purifying 2,4-xylenol
- 专利标题（中）： 净化2,4-二氯苯酚的方法
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申请号： EP88108368.7申请日： 1988-05-26
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公开(公告)号： EP0292951A3公开(公告)日： 1990-06-06
- 发明人: Miura, Tohru , Watanabe, Katsuji , Nakayama, Hitoshi , Nagata, Teruyuki , Furuya, Masayuki
- 申请人： MITSUI TOATSU CHEMICALS, Inc.
- 申请人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人： MITSUI TOATSU CHEMICALS, Inc.
- 当前专利权人地址： 2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP
- 代理机构： Gervasi, Gemma, Dr.
- 优先权： JP131694/87 19870529; JP115119/88 19880512
- 主分类号： C07C37/86
- IPC分类号： C07C37/86 ; C07C39/07
摘要：
2,4-xylenol can be obtained with a high yield and high purity in the purification of a crude 2,4-xylenol isomer mixture containing 2,5-xylenol by reacting only 2,5-xylenol with an aldehyde in the presence of an aromatic sulfonic acid, converting 2,5-xylenol into a xylenol-aldehyde condensate and, subsequently, separating the same from 2,4-xylenol.
公开/授权文献
- EP0292951B1 Process for purifying 2,4-xylenol 公开/授权日：1994-03-16
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