Process for preparing pure triethanolamine (TEOA)
    1.
    再颁专利
    Process for preparing pure triethanolamine (TEOA) 有权
    纯三乙醇胺(TEOA)

    公开(公告)号:USRE45240E1

    公开(公告)日:2014-11-11

    申请号:US14085964

    申请日:2013-11-21

    Applicant: BASF SE

    CPC classification number: C07C213/10 C07C215/12

    Abstract: A process for preparing pure triethanolamine (TEOA) by continuously distillatively separating an ethanolamine mixture comprising TEOA and diethanolamine (DEOA), by distilling off DEOA in a distillation column (DEOA column) and supplying the resulting bottom stream comprising TEOA to a downstream column (TEOA column) in which the pure TEOA is withdrawn as a side draw stream, wherein the residence time of the ethanolamine mixture in the bottom of the DEOA column is

    Abstract translation: 通过在蒸馏塔(DEOA柱)中蒸馏除去DEOA并将得到的包含TEOA的底部物流供应到下游塔(TEOA)中,通过连续蒸馏分离包含TEOA和二乙醇胺(DEOA)的乙醇胺混合物来制备纯三乙醇胺(TEOA) 柱),其中作为侧馏分流取出纯TEOA,其中乙醇胺混合物在DEOA塔底部的停留时间<20分钟。

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