Process for producing high purity trialkanolamine
    4.
    发明授权
    Process for producing high purity trialkanolamine 有权
    生产高纯三烷醇胺的方法

    公开(公告)号:US07164044B2

    公开(公告)日:2007-01-16

    申请号:US10770297

    申请日:2004-02-02

    IPC分类号: C07C213/04 C07C213/10

    摘要: A process for producing a high purity trialkanolamine excelling in hue and having an APHA of not more than 40, characterizing by including producing a mixed alkanolamine by the reaction of an alkylene oxide with ammonia; removing low-boiling substances from the mixed alkanolamine; removing high-boiling substances by subjecting the product deprived of the low-boiling substance to vacuum distillation, and redistilling the distillate obtained by the vacuum distillation.

    摘要翻译: 一种生产高纯度三链烷醇胺的方法,其优异的色度和APHA不超过40,其特征在于包括通过烯化氧与氨的反应制备混合的链烷醇胺; 从混合的链烷醇胺中除去低沸点物质; 通过使低沸点物质被去除的产物进行真空蒸馏除去高沸点物质,并将通过真空蒸馏得到的馏出物重新蒸馏。