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Method for removal of aldehydes from chemical manufacturing production streams during distillative purification
Method for removal of aldehydes from chemical manufacturing production streams during distillative purification
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机译:在蒸馏提纯过程中从化工生产流中去除醛的方法
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摘要
A method for improving purification efficiency when distilling off aldehyde contaminants during chemical manufacturing processes by adding a substituted aromatic amine having electron donating group substituents prior to the distillation column. The method is particularly useful for removal of aldehydes such as acrolein, generated as a by-product of acrylonitrile manufacture. Preferred aromatic amines are 2-amino aniline, 3,4-dimethyl aniline and 4-ethyl aniline.
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