Process for Producing Phenol and/or Cyclohexanone from Cyclohexylbenzene
    2.
    发明申请
    Process for Producing Phenol and/or Cyclohexanone from Cyclohexylbenzene 有权
    从环己基苯生产苯酚和/或环己酮的方法

    公开(公告)号:US20150218075A1

    公开(公告)日:2015-08-06

    申请号:US14422444

    申请日:2013-09-12

    摘要: In a process for producing phenol and/or cyclohexanone, cyclohexylbenzene is contacted with an oxygen-containing gas to produce an oxidation effluent containing cyclohexylbenzene hydroperoxide. At least a portion of the cyclohexylbenzene hydroperoxide is then contacted with a cleavage catalyst to produce a cleavage effluent containing phenol and cyclohexanone and by-products including phenylcyclohexanol. The cleavage effluent or a neutralized product thereof also comprises at least one compound comprising an atom not being carbon, hydrogen or oxygen, which is separated from the cleavage effluent and/or the neutralized product thereof to leave a cleavage fraction lean in the compound comprising an atom not being carbon, hydrogen or oxygen and containing at least a portion of the phenylcyclohexanol. At least a portion of the phenylcyclohexanol is then contacted with a dehydration catalyst comprising a molecular sieve of the MCM-22 type to convert at least a portion of the phenylcyclohexanol to phenyl cyclohexene.

    摘要翻译: 在生产苯酚和/或环己酮的方法中,使环己基苯与含氧气体接触以产生含有环己基苯氢过氧化物的氧化流出物。 然后将至少一部分环己基苯氢过氧化物与裂解催化剂接触,以产生包含苯酚和环己酮的裂解流出物以及包括苯基环己醇在内的副产物。 裂解流出物或其中和产物还包含至少一种包含不是碳,氢或氧的原子的化合物,其从裂解流出物和/或其中和产物中分离出来,以在含有 原子不是碳,氢或氧并且含有至少一部分苯基环己醇。 然后至少一部分苯基环己醇与包含MCM-22型分子筛的脱水催化剂接触,以将至少一部分苯基环己醇转化成苯基环己烯。

    Process for producing phenol
    6.
    发明授权
    Process for producing phenol 有权
    苯酚生产工艺

    公开(公告)号:US09260387B2

    公开(公告)日:2016-02-16

    申请号:US14441194

    申请日:2013-11-22

    摘要: In a process for producing phenol and/or cyclohexanone, cyclohexylbenzene is contacted with an oxygen-containing gas under conditions effective to produce an oxidation effluent containing cyclohexylbenzene hydroperoxide. At least a portion of the oxidation effluent containing cyclohexylbenzene hydroperoxide is then contacted with a cleavage catalyst under conditions effective to produce a cleavage effluent containing phenol and cyclohexanone. At least one of the oxidation effluent and the cleavage effluent contains a by-product comprising a mixture of isomers of phenylcyclohexanol and/or phenylcyclohexanone, in which the 2-phenyl isomer(s) is present in an amount less than 20% of the mixture. At least a portion of the at least one effluent containing the isomer mixture is contacted with a dehydration catalyst under conditions effective to convert at least a portion of the mixture to isomers of phenylcyclohexene, with very low ring rearrangement to produce 1-methylcyclopentenylbenzene and cyclopentenylmethylbenzene.

    摘要翻译: 在生产苯酚和/或环己酮的方法中,环己基苯在有效产生含有环己基苯氢过氧化物的氧化流出物的条件下与含氧气体接触。 然后在有效产生含有酚和环己酮的裂解流出物的条件下,将含有环己基苯氢过氧化物的至少一部分氧化流出物与裂解催化剂接触。 至少一种氧化流出物和裂解流出物含有副产物,其包含苯基环己醇和/或苯基环己酮的异构体的混合物,其中2-苯基异构体的存在量小于混合物的20% 。 含有异构体混合物的至少一种流出物的至少一部分与脱水催化剂在有效地将至少一部分混合物转化为苯基环己烯的异构体的条件下接触,具有非常低的环重排以产生1-甲基环戊烯基苯和环戊烯基甲基苯。