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公开(公告)号:US4511751A
公开(公告)日:1985-04-16
申请号:US540870
申请日:1983-10-11
申请人: Yoichi Ninagawa , Osamu Yamada , Tsumoru Renge , Sunao Kyo , Takayoshi Osaki , Koichi Kushida
发明人: Yoichi Ninagawa , Osamu Yamada , Tsumoru Renge , Sunao Kyo , Takayoshi Osaki , Koichi Kushida
IPC分类号: C07C1/20 , C07C2/86 , C07C29/40 , C07C45/00 , C07C45/81 , C07C45/82 , C07D309/18 , C07D319/06 , C07C11/18
CPC分类号: C07D319/06 , C07C1/20 , C07C2/867 , C07C29/40 , C07C45/00 , C07C45/81 , C07C45/82 , C07D309/18
摘要: A process for producing isoprene in good yield is provided. The process is characterized in that isobutene and/or tertiary butanol and a formaldehyde source are fed, together with water, into an acidic aqueous solution continuously or intermittently while maintaining the reaction pressure in an adequate range and at the same time distilling off the product isoprene and unreacted starting materials, together with water, from the reaction zone.
摘要翻译: 提供了以良好的产率生产异戊二烯的方法。 该方法的特征在于将异丁烯和/或叔丁醇和甲醛源与水一起连续或间歇地进料到酸性水溶液中,同时保持反应压力在适当的范围内,同时蒸除产物异戊二烯 和来自反应区的未反应的起始原料与水一起。
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公开(公告)号:US4593145A
公开(公告)日:1986-06-03
申请号:US707842
申请日:1985-03-04
申请人: Yoichi Ninagawa , Osamu Yamada , Tsumoru Renge , Sunao Kyo , Takayoshi Osaki , Koichi Kushida
发明人: Yoichi Ninagawa , Osamu Yamada , Tsumoru Renge , Sunao Kyo , Takayoshi Osaki , Koichi Kushida
IPC分类号: C07C1/20
CPC分类号: C07C1/20
摘要: A process for producing isoprene in good yield is provided. The process is characterized in that an alkyl tertiary butyl ether and a formaldehyde source are fed, together with water, into a acidic aqueous solution continuously or intermittently while maintaining the reaction pressure in an adequate range and at the same time distilling off the product isoprene, unreacted starting materials, isobutene and tertiary butanol, together with water, from the reaction zone.
摘要翻译: 提供了以良好的产率生产异戊二烯的方法。 该方法的特征在于,将烷基叔丁基醚和甲醛源与水一起连续或间歇地进料到酸性水溶液中,同时将反应压力保持在适当的范围内,同时蒸除产物异戊二烯, 未反应的原料,异丁烯和叔丁醇,以及水,从反应区。
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