发明名称 ACETALDEHYDE REMOVAL FROM METHYL ACETATE BY DISTILLATION AT ELEVATED PRESSURE
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.
申请公布号 CA2704289(A1) 申请公布日期 2009.05.07
申请号 CA20082704289 申请日期 2008.09.30
申请人 CELANESE INTERNATIONAL CORPORATION 发明人 WARNER, R., JAY
分类号 C07C51/12;C07C67/54 主分类号 C07C51/12
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