Method for purifying triethanolamine

    公开(公告)号:AU1386600A

    公开(公告)日:2000-06-19

    申请号:AU1386600

    申请日:1999-11-25

    Applicant: BASF AG

    Abstract: Method of purifying triethanolamine prepared by reacting aqueous ammonia with ethylene oxide in the liquid phase under pressure and at elevated temperature by removing excess ammonia, water and monoethanolamine from the reaction product, reacting the resulting crude product with ethylene oxide at temperatures of from 110 to 180° C., and then rectifying the mixture in the presence of phosphorous or hypophosphorous acid or compounds thereof.

    3.
    发明专利
    未知

    公开(公告)号:ES2201843T3

    公开(公告)日:2004-03-16

    申请号:ES99973013

    申请日:1999-11-25

    Applicant: BASF AG

    Abstract: Method of purifying triethanolamine prepared by reacting aqueous ammonia with ethylene oxide in the liquid phase under pressure and at elevated temperature by removing excess ammonia, water and monoethanolamine from the reaction product, reacting the resulting crude product with ethylene oxide at temperatures of from 110 to 180° C., and then rectifying the mixture in the presence of phosphorous or hypophosphorous acid or compounds thereof.

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