发明名称 |
METHOD FOR PREPARING PHENOL AND ACETONE BY ACID-CATALYZED CLEAVAGE OF CUMYL HYDROPEROXIDE FOLLOWED BY THERMAL TREATMENT AND REACTOR FOR REALIZING METHOD |
摘要 |
FIELD: organic chemistry, chemical technology. ^ SUBSTANCE: invention relates to a method for preparing phenol and acetone by acid-catalyzed cleavage of cumyl hydroperoxide. Method involves preliminary heating the reaction mixture to temperature above 100°C and then for thermal treatment of product heat in exothermic reaction is used, mainly the cleavage reaction of cumyl hydroperoxide that presents in the concentration from 5 to 10 wt.-%. The preferable residual content of dicumyl hydroxide in thermally treated product is 0.01-0.05 wt.-%. Stages in cleavage of cumyl hydroperoxide and the following thermal treatment can be carried out in a single reactor with two zones among that one zone is fitted with a device for heat removing and another zone has a feature of the flow-type pipe. Reactor is equipped by a device for circulation of part of product from thermal treatment zone to a feeding line for decomposition of product. Method provides improving energetic indices of process due to optimal consumption of heat energy in maintaining high selectivity of the decomposition process. ^ EFFECT: improved preparing method. ^ 15 cl, 3 dwg |
申请公布号 |
RU2265586(C2) |
申请公布日期 |
2005.12.10 |
申请号 |
RU20010111416 |
申请日期 |
2001.04.27 |
申请人 |
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发明人 |
ZIGG RAJNKHARD;TANGER UVE;VEBER MANFRED;SHNURR OTTO |
分类号 |
C07C27/00;B01J8/12;C07B61/00;C07C37/08;C07C39/04;C07C45/53;C07C49/08 |
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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