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公开(公告)号:US4714784A
公开(公告)日:1987-12-22
申请号:US886035
申请日:1986-07-16
IPC分类号: B01D53/46 , B01D53/72 , B01D53/77 , C07C27/00 , C07C29/141 , C07C29/17 , C07C31/125 , C07C45/00 , C07C45/78 , C07C47/02 , C07C67/00
CPC分类号: B01D53/72 , C07C45/783
摘要: The invention relates to a method for removing n-butyraldehyde from gas streams. It is characterized by washing with dilute aqueous alkali in a mass transfer apparatus. According to the invention, n-butyraldehyde can be removed from gas streams in the proportion of >90%, with operation at 0.degree.-40.degree. C. in the absence of added solubilizing agents.
摘要翻译: 本发明涉及从气流中除去正丁醛的方法。 其特征在于在传质装置中用稀碱水洗涤。 根据本发明,正丁醛可以以> 90%的比例从气流中除去,在没有添加增溶剂的情况下在0℃-40℃下操作。
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公开(公告)号:US5342979A
公开(公告)日:1994-08-30
申请号:US32555
申请日:1993-03-17
IPC分类号: C07C51/10 , C07C51/14 , C07C51/46 , C07C53/128 , C11B3/00
摘要: In a process for the production of tertiary carboxylic acids, especially by "Koch synthesis", the byproducts, e.g., a dimer of tripropene, are removed from the reaction mixture by azeotropic rectification with alkanediols, e.g., 1,3-butanediol, as entrainers, thus obtaining the tertiary carboxylic acids in pure form.
摘要翻译: 在特别是通过“Koch合成”生产叔羧酸的方法中,副产物例如三丙烯的二聚体通过与链烷二醇例如1,3-丁二醇作为夹带剂的共沸精馏从反应混合物中除去 ,从而获得纯形式的叔羧酸。
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