发明公开
- 专利标题: METHOD FOR MANUFACTURING CHLORINE
- 专利标题(中): 制造氯的方法
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申请号: EP09831855.3申请日: 2009-12-03
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公开(公告)号: EP2374752A1公开(公告)日: 2011-10-12
- 发明人: KINOSHITA, Masahiro , OMOTO, Norihito
- 申请人: Sumitomo Chemical Company, Limited
- 申请人地址: 27-1, Shinkawa 2-chome Chuo-ku Tokyo 104-8260 JP
- 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: 27-1, Shinkawa 2-chome Chuo-ku Tokyo 104-8260 JP
- 代理机构: Duckworth, Timothy John
- 优先权: JP2008313585 20081209
- 国际公布: WO2010067751 20100617
- 主分类号: C01B7/04
- IPC分类号: C01B7/04
摘要:
An object of the present invention is to provide a novel method for producing chlorine with improved efficiency, which can remove impurities other than hydrogen chloride contained in a raw material gas and can recover unreacted hydrogen chloride after an oxidation reaction efficiently. The method of the present invention for producing chlorine includes an oxidation step of oxidizing hydrogen chloride in a raw material gas containing hydrogen chloride and impurities with oxygen, thereby obtaining a gas containing chlorine, and an absorption step of bringing the gas containing chlorine obtained in the oxidation step into contact with water or aqueous hydrochloric acid to form a solution containing hydrogen chloride and water as main components, thereby recovering unreacted hydrogen chloride and simultaneously obtaining a gas containing chlorine and oxygen as main components, wherein the above-mentioned raw material gas contains a gas obtained in at least one step of a first stripping step and a second stripping step, and the above-mentioned raw material gas passes through a step of removing moisture and a step of performing compression after at least one step of the first stripping step and the second stripping step and before being subjected to the oxidation step.
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