发明名称 |
ACETALDEHYDE REMOVAL FROM METHYL ACETATE BY DISTILLATION AT ELEVATED PRESSURE |
摘要 |
<p>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.</p> |
申请公布号 |
WO2009058182(A1) |
申请公布日期 |
2009.05.07 |
申请号 |
WO2008US11292 |
申请日期 |
2008.09.30 |
申请人 |
CELANESE INTERNATIONAL CORPORATION;WARNER, R., JAY |
发明人 |
WARNER, R., JAY |
分类号 |
C07C51/12;C07C67/54 |
主分类号 |
C07C51/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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