发明名称 |
PROCESS FOR PREPARING DII TERTTBUTYL CRESOL |
摘要 |
A process for the continuous preparation of a ditertiary butylcresol wherein m- or p-cresol is reacted with isobutene at elevated temperature using H2SO4 as catalyst wherein the process is carried out stepwise by introducing stepwise into a reaction mixture comprising substantially all of the cresol to be reacted with isobutene. The total amount of isobutene introduced is introduced such that less isobutene is charged in a last stage of the process than in the first stage thereof. Thereafter the catalyst is deactivated. |
申请公布号 |
JPS5283340(A) |
申请公布日期 |
1977.07.12 |
申请号 |
JP19760153504 |
申请日期 |
1976.12.22 |
申请人 |
BAYER AG |
发明人 |
HERUMUUTO FUIIGE;YOZEFU HAIDON;YOHAN RENNAA;KAARUFURIITO BEDEMAIYAA |
分类号 |
C07C27/00;C07C37/14;C07C39/06;C07C67/00 |
主分类号 |
C07C27/00 |
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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