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公开(公告)号:US4235684A
公开(公告)日:1980-11-25
申请号:US98444
申请日:1979-11-29
IPC分类号: C07C51/00 , C07C59/153 , C07C67/00 , C25B3/02 , C25B3/00
CPC分类号: C25B3/02
摘要: A process for producing glyoxalic acid which comprises electrolytically oxidizing glyoxal in an electrolytic cell comprising at least one anode, at least one cathode and at least one cation exchange membrane therebetween to define an anode compartment(s) and a cathode compartment(s) therein, using an aqueous solution containing glyoxal and halogen ions as an anolyte solution and an aqueous solution containing an inorganic or organic electrolyte as a catholyte solution.
摘要翻译: 一种生产乙醛酸的方法,其包括在包括至少一个阳极,至少一个阴极和其间的至少一个阳离子交换膜的电解池中电解氧化乙二醛以在其中限定阳极室和阴极室, 使用含有乙二醛和卤素离子的水溶液作为阳极电解液和含有无机或有机电解质的水溶液作为阴极电解液。
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公开(公告)号:US4737318A
公开(公告)日:1988-04-12
申请号:US910335
申请日:1986-09-19
申请人: Masaaki Ichino , Kunio Koga , Tsutomu Mizuta , Takashi Matsuyama
发明人: Masaaki Ichino , Kunio Koga , Tsutomu Mizuta , Takashi Matsuyama
CPC分类号: C07C51/573
摘要: Acetic anhydride is recovered from a mixture of acetic anhydride, acetic acid and water by contacting the mixture with at least one extraction solvent selected from the group consisting of a hydrophobic, organic solvent, a ketone and an ester to extract and recover acetic anhydride.
摘要翻译: 通过使该混合物与选自疏水性,有机溶剂,酮和酯的至少一种萃取溶剂接触以提取和回收乙酸酐,从乙酸酐,乙酸和水的混合物中回收乙酸酐。
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