发明申请
- 专利标题: Industrial process for production of high-purity diol
- 专利标题(中): 工业生产高纯度二醇的工艺
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申请号: US11991416申请日: 2007-01-25
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公开(公告)号: US20090143628A1公开(公告)日: 2009-06-04
- 发明人: Shinsuke Fukuoka , Hironori Miyaji , Hiroshi Hachiya , Kazuhiko Matsuzaki
- 申请人: Shinsuke Fukuoka , Hironori Miyaji , Hiroshi Hachiya , Kazuhiko Matsuzaki
- 申请人地址: JP Chiyoda-ku, TOKYO
- 专利权人: Asahi Kasei Chemicals Corporation
- 当前专利权人: Asahi Kasei Chemicals Corporation
- 当前专利权人地址: JP Chiyoda-ku, TOKYO
- 优先权: JP2006-023065 20060131
- 国际申请: PCT/JP2007/051153 WO 20070125
- 主分类号: C07C29/80
- IPC分类号: C07C29/80 ; B01J19/00
摘要:
It is an object of the present invention to provide a specific apparatus and process for industrially producing a high-purity diol by taking a cyclic carbonate and an aliphatic monohydric alcohol as starting materials. More specifically, it is an object to thus provide a specific industrial apparatus and industrial production process that are inexpensive and, for example, enable the high-purity diol to be produced in an amount of not less than 1 ton/hr, preferably not less than 2 tons/hr, more preferably not less than 3 tons/hr, stably for a prolonged period of time (e.g. not less than 1000 hours, preferably not less than 3000 hours, more preferably not less than 5000 hours). The above objects can be attained by using a continuous multi-stage distillation column E having a specified structure, and withdrawing a liquid component from the side cut outlet, which is installed at the bottom of a chimney tray having a specified structure installed in an enrichment section of the continuous multi-stage distillation column E.
公开/授权文献
- US1274412A Lumber-register. 公开/授权日:1918-08-06
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