Acetaldehyde removal from methyl acetate by distillation at elevated pressure
    65.
    发明授权
    Acetaldehyde removal from methyl acetate by distillation at elevated pressure 有权
    乙酸乙酯通过在升高的压力下蒸馏除去乙醛

    公开(公告)号:US08062482B2

    公开(公告)日:2011-11-22

    申请号:US11978882

    申请日:2007-10-30

    申请人: R. Jay Warner

    发明人: R. Jay Warner

    摘要: A method for removing acetaldehyde from a mixture of methyl acetate, methanol and acetaldehyde includes: (a) feeding the mixture of methyl acetate, methanol and acetaldehyde to a distillation column; (b) distilling the feed mixture of methyl acetate methanol and acetaldehyde at a pressure of 10 psig or more to generate an overhead vapor stream enriched in acetaldehyde as compared with the feed mixture and a residue stream depleted in acetaldehyde as compared with the feed mixture; and (c) withdrawing the residue stream depleted in acetaldehyde from the distillation column.

    摘要翻译: 从乙酸甲酯,甲醇和乙醛的混合物中除去乙醛的方法包括:(a)将乙酸甲酯,甲醇和乙醛的混合物送入蒸馏塔; (b)与进料混合物相比,在10psig或更高的压力下蒸馏乙酸甲酯和乙醛的进料混合物,以产生与进料混合物相比富含乙醛的塔顶蒸气物流和与进料混合物相比的贫乙醛残留物流; 和(c)从蒸馏塔中取出贫乙醛的残留物流。