发明名称 |
Process for recovery of acetone |
摘要 |
This invention is a process for purifying crude acetone obtained by cleavage of cumene hydroperoxide, said crude acetone containing aldehyde impurities and appreciable amounts of unreacted cumene, by fractionally distilling the acetone in a multiple plate distillation column, said process comprising: continuously feeding crude acetone; continuously feeding a dilute aqueous solution of an alkaline material at a point above the crude acetone feed point; and controlling the temperature profile of the column by adjusting the amount of liquid acetone removed in step (c) to maintain a preselected temperature on a plate in the region between the crude acetone feed point and the alkaline material feed point.
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申请公布号 |
US4722769(A) |
申请公布日期 |
1988.02.02 |
申请号 |
US19860855232 |
申请日期 |
1986.04.24 |
申请人 |
ALLIED CORPORATION |
发明人 |
CHAN, CHONG H.;CRESCENTINI, LAMBERTO;HINTON, JR., EVERETT H. |
分类号 |
C07C49/08;C07C45/00;C07C45/53;C07C45/82;C07C67/00;(IPC1-7):B01D3/34;B01D3/42 |
主分类号 |
C07C49/08 |
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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