发明公开
EP1621527A1 METHOD FOR PRODUCING ALPHA-METHYLSTYRENE
审中-公开
VERFAHREN ZUR HERSTELLUNG VON ALPHA-METHYLSTYROL
- 专利标题: METHOD FOR PRODUCING ALPHA-METHYLSTYRENE
- 专利标题(中): VERFAHREN ZUR HERSTELLUNG VON ALPHA-METHYLSTYROL
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申请号: EP04722712.9申请日: 2004-03-23
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公开(公告)号: EP1621527A1公开(公告)日: 2006-02-01
- 发明人: TSUJI, Junpei , ISHINO, Masaru
- 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: Lips, Hendrik Jan George
- 优先权: JP2003085100 20030326
- 国际公布: WO2004085351 20041007
- 主分类号: C07C1/24
- IPC分类号: C07C1/24 ; C07C15/44 ; C07D301/19 ; C07D303/04
摘要:
A process for producing α-methyl styrene from cumyl alcohol via dehydration in the presence of an activated alumina, characterized in that a concentration of an organic acid contained in a raw material containing cumyl alcohol is 10 to 1000 ppm by weight.
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