发明名称 |
Preparation of acetic acid |
摘要 |
A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy impurities from acetic acid by distillation.
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申请公布号 |
US2008051601(A1) |
申请公布日期 |
2008.02.28 |
申请号 |
US20060508109 |
申请日期 |
2006.08.22 |
申请人 |
SAWYER GARY A;BRTKO WAYNE J;HANES RONNIE M;SALISBURY BRIAN A |
发明人 |
SAWYER GARY A.;BRTKO WAYNE J.;HANES RONNIE M.;SALISBURY BRIAN A. |
分类号 |
C07C51/15 |
主分类号 |
C07C51/15 |
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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