发明名称 |
PROCESS FOR THE REMOVAL OF HYDROXYACETONE FROM PHENOL |
摘要 |
<p>Phenol containing less than 30 ppm hydroxyacetone is produced by feeding hydroxyacetone-contaminated phenol obtained by the decomposition of cumene hydroperoxide, which phenol is substantially free from cleavage catalyst and light ends such as acetone and water, and up to 22% by weight of cumene and/or alpha-methyl styrene to an intermediate point in a distillation column from which there is removed overhead a fraction containing cumene and/or alpha-methyl styrene and a substantial proportion of the hydroxyacetone in the feed and there is removed from the base a fraction comprising phenol containing less than 30 ppm hydroxyacetone, whilst maintaining the column under such conditions of temperature and pressure that cumene and/or alpha-methyl styrene forms from 55 to 80% by weight of the composition on the uppermost 15 to 70% of the trays in the stripping section and phenol forms greater than 50% by weight of the composition on the bottommost 10 to 50% of the trays in the stripping section.</p> |
申请公布号 |
EP0004168(B1) |
申请公布日期 |
1984.01.25 |
申请号 |
EP19790300321 |
申请日期 |
1979.03.02 |
申请人 |
BP CHEMICALS LIMITED |
发明人 |
MARSH, CHRISTOPHER REGINALD;RUSSELL, JAMES ALLARDICE |
分类号 |
C07C27/26;C07C27/00;C07C37/08;C07C37/74;C07C39/04;C07C67/00;(IPC1-7):07C37/74;07C39/04 |
主分类号 |
C07C27/26 |
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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