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    • 7. 发明授权
    • Production and purification of phenol: hydroxyacetone removal by hydrotalcite
    • 苯酚的生产和纯化:通过水滑石除去羟基丙酮
    • US06486365B1
    • 2002-11-26
    • US10063258
    • 2002-04-04
    • John W. FulmerBharat SinghPramod KumbharPrashant Anil TatakeUmesh Hasyagar
    • John W. FulmerBharat SinghPramod KumbharPrashant Anil TatakeUmesh Hasyagar
    • C07C3708
    • C07C37/86C07C2521/10C07C39/04
    • A process for converting carbonyl-type impurities contained in a phenolic solvent to high-boiling derivatives is provided by contacting the phenolic solvent with a hydrotalcite-type material (HTM). The phenol can be separated from the high-boiling derivatives using conventional separation techniques, such as distillation, so the invention also provides a process for separating carbonyl-type impurities, such as hydroxyacetone (HA), from a phenolic solvent. The process can be applied in the conventional industrial process for converting cumene to phenol to remove carbonyl-type impurities from the phenol product. A process and a facility for producing purified phenol by converting cumene to phenol are provided. In the conversion of cumene to phenol, the phenol often contains carbonyl-type impurities. The phenol and carbonyl-type impurities are reacted in the presence of an HTM to produce phenol and high-boiling derivatives. The phenol may be further purified using conventional separation techniques, such as distillation, to remove the high-boiling derivatives.
    • 通过使酚类溶剂与水滑石类材料(HTM)接触来提供将酚类溶剂中所含的羰基型杂质转化成高沸点衍生物的方法。 苯酚可以使用常规的分离技术如蒸馏从高沸点衍生物中分离,因此本发明还提供了从酚类溶剂中分离羰基型杂质如羟基丙酮(HA)的方法。 该方法可用于将异丙基苯转化为苯酚以从苯酚产物中除去羰基型杂质的常规工业方法。 提供了通过将异丙基苯转化成苯酚来生产纯化苯酚的方法和设备。 在异丙苯转化为苯酚时,苯酚常含有羰基型杂质。 苯酚和羰基型杂质在HTM存在下反应生成苯酚和高沸点衍生物。 可以使用常规分离技术如蒸馏进一步纯化苯酚,以除去高沸点衍生物。