Purification of phenol
    3.
    发明授权
    Purification of phenol 失效
    PHENOL的纯化

    公开(公告)号:US3692845A

    公开(公告)日:1972-09-19

    申请号:US3692845D

    申请日:1969-03-12

    Applicant: ALLIED CHEM

    Abstract: This invention relates to the purification of phenol produced by the decomposition of cumene hydroperoxide by heating the phenol with a polyamine compound to remove carbonyl-bearing impurities and then acidifying the phenol to give a product which remains color stable on aging. After the addition of the polyamine compound, the phenol is distilled free of the polyamine compound and the carbonyl-bearing impurities. This distillation can be carried out either before or after the acid is added.

    Abstract translation: 本发明涉及通过用多胺化合物加热苯酚以除去含羰基杂质,然后酸化酚,得到在老化时保持颜色稳定的产物,通过氢过氧化枯烯的分解而产生的苯酚的纯化。 加入多胺化合物后,不含多胺化合物和含羰基杂质蒸馏出苯酚。 该蒸馏可以在酸加入之前或之后进行。

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