发明公开
- 专利标题： Industrial process for the separation and recovery of chlorine
- 专利标题（中）： 氯分离和回收的工业过程
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申请号： EP94100177.8申请日： 1989-02-15
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公开(公告)号： EP0594558A2公开(公告)日： 1994-04-27
- 发明人: Itoh, Hiroyuki , Kono, Yoshitsugu , Kikuchi, Isao , Takenaka, Shinji , Ajioka, Masanobu , Kudoh, Mitsuo
- 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： Stuart, Ian Alexander
- 优先权： JP31792/88 19880216; JP32837/88 19880217; JP59428/88 19880315
- 主分类号： C01B7/07
- IPC分类号： C01B7/07
摘要：
A process for the removal of chlorine from a gaseous mixture comprising chlorine gas and carbon dioxide gas, which comprises feeding an aqueous solution or suspension containing an alkali metal sulfite and/or an alkaline earth metal sulfite and optionally an alkali metal hydroxide and/or an alkaline earth metal hydroxide in a proportion not greater than twice in molar ratio the alkali metal sulfite and/or alkaline earth metal sulfite, and washing the gaseous mixture with the solution or suspension while controlling the pH of the solution or suspension within a range of 1.9-6.3, whereby chlorine is solely removed from the gaseous mixture.
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