发明名称 |
PROCESS FOR PURIFYING METHYL ACETATE MIXTURES |
摘要 |
A process for removing acetaldehyde from a mixture of methyl acetate, dimethyl ether and acetaldehyde comprising distilling mixtures derived from carbonylating dimethyl ether in the presence of a zeolite catalyst to generate an overhead stream depleted in acetaldehyde as compared to the feed mixture, a base stream depleted in acetaldehyde as compared to the feed mixture and a sidedraw stream enriched in acetaldehyde as compared to the feed mixture and withdrawing from the column the sidedraw stream enriched in acetaldehyde at a point above the feed point of the feed mixture to the column. Purified mixtures may be utilised as feedstock to processes for the co-production of acetic acid and dimethyl ether. |
申请公布号 |
WO2015193182(A1) |
申请公布日期 |
2015.12.23 |
申请号 |
WO2015EP63147 |
申请日期 |
2015.06.12 |
申请人 |
BP CHEMICALS LIMITED;BRISTOW, TIMOTHY CRISPIN |
发明人 |
BRISTOW, TIMOTHY CRISPIN |
分类号 |
C07C67/37;C07C41/16;C07C41/42;C07C43/04;C07C51/09;C07C53/08;C07C67/54;C07C69/14 |
主分类号 |
C07C67/37 |
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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